Oleg Tchetchel asked:


A newly developed high pressure MVA series mixed flow in-line fans finally resolves the problem of pushing air through high resistance and long ventilation ducts.

Mixed Flow fans are an excellent choice for return air, supply, or general ventilation applications where low sound is critical. As compared to similarly sized tubular centrifugals and vane axials, a mixed flow fan will be 5-20 dB quieter! In addition, the mixed flow wheel is extremely efficient and will cut down on operating expenses.

Unique features of the MVA Mixed Flow Fans include:

- Universal Mounting System that allows the unit to be field rotated at the job site

- Compact design with standard slip-fit duct connections for ease of installation

- UL/CSA listing for electrical is available

- Continuously welded housing with a standard powder paint finish suitable for indoor or outdoor applications

- A complete three plane vibration test of all assembled fans prior to shipment

Model MVAB:

 

* Belt drive construction with motor out of the airstream

* Air Handling Quality bearings selected with a minimum life in excess of L(10) 50,000 hours at the maximum operating speed

* Performance capacities from 1,000 to 100,000 cfm (1,700 - 165,000 m3/hour) and pressures up to 8 in. wg. (2000 Pa)

Model MVAD:

* Direct drive construction eliminates belts, pulleys, and shaft bearing maintenance

* MVAD design is more compact for space critical application

* Partial wheel widths allow for wide performance capacities ranging from 500 to 105,000 cfm (900 - 170,000 m3/hour) and pressures up to 9 in. w.g. (2300PA)

Another in-line fan for for air moving in round ducts by Canada Blower is a high pressure small vaneaxial fan finally resolves the problem of boosting air flow in long ventilation ducts of today’s large residential houses.

For a long time the efficient ventilation of remote rooms in the large houses could be done only with two independent air supply sources (like a furnace). Ventilating ductwork in contemporary large houses becomes so long and elaborated that even a high pressure furnace fan couldn’t generate enough static pressure to blow through the whole length of such a duct. The existing low pressure booster duct fans, even though compact enough to be installed in-line in the house ventilation ductwork, still do not provide enough booster pressure / airflow. The usual solution to this problem was installation of two independent furnaces with different air ducts, which is rather expensive option.

A new high pressure (up to 1.5″ WG) small vaneaxial Series VA fan is an ideal booster fan for prolonged ducts. Unlike inline centrifugal ventilator, that also generates rather high pressure, the air comes out not from a peripheral outlet ring area, but distributes evenly across its outlet opening like in true axial blowers.

The other advantages of VA Series vaneaxial ventilators is their intrinsic spark-resistant construction because of all-aluminum construction; quiet operation of true vaneaxial design; lower energy consumption due to efficient wheel design.

Eight different sizes from 6″ DIA to 10″ DIA offer wide performance range for any ventilation duct design. Direct drive design ensures long live, maintenance-free operation. Explosion proof motors are available too, as well as sliding dampers, various mounting options, additional sound isolation.

For additional information please refer to http://canadianblower.com/blowers/index.html.

Oleg Tchetchel

Process Engineer

Canadian Blower

http://canadablower.com

http://canadianblower.com/blowers/index.html



Gas Furnace Service

Oleg Tchetchel asked:


Canadian Air Systems Co. is a designer and manufacturer of industrial dust collection systems. Dust collecting equipment is available in numerous designs utilizing a number of principles and featuring wide variation in effectiveness, initial cost, operating and maintenance expense, space, arrangements and material of construction.

Factors influencing dust collection equipment selection include:

* Concentration and particle size of contaminant.

  In most dust conveying systems, usual dust range from 0.1 to 100 micron - a rather wide range of particle sizes.

* Degree of collection required.

  Evaluation will consider the need for high efficiency high cost equipment such as electrostatic precipirators; high efficiency moderate cost equipment such as fabric or wet collector units; and the lower cost primary units such as the dry centrifugal group. Degree of dust collection required can depend on plant location; compariosn of quantities of material released to atmoshere with different type of dust collectors; nature of contaminant - its salvage value or its potential as a health hazard, public nuissance or ability to damage property - and the requirements of the local or state air pollution regulations.

* Characteristics of air or gas stream.

  High temperature gas streams exceeding 180 F will prevent the use of standard cotton media in fabric collectors; presence of steam or condensation of water vapor will cause packling and plugging of air or dust packages in fabric and dry centrifugal collectors. Chemical composition can attack fabric or metal in dry collectors and cause extremely corrosive conditions when mixed with water in wet type collectors.

* Characteristics of contaminant.

  Chemical composition can cause attack on dust collector elements or corrosion in wet type dust collectors. Sticky materials like metallic buffing dust impregnated with buffing compounds can adhere to collector elements plugging dust collector passages. Linty materials such as dust from textile opener, picker and napper will adhere to certain types of collector surfaces or elements. Abrasiveness of many materials in moderate to heavy concentrations such as dust from sand blasting will cause rapid wear particularly on dry type centrifugal collectors. Particles size and shape will rule out certain collector designs. The parashute shape of particles such as “bees wings” from grain will “float” through centrifugal collectors due to their velocity of fall being slower than much smaller spherical particles of the same specific gravity. Combustible nature of many finely divided materials will influence selection of explosion proof dust collectors for such products.

* Methods of disposal.

  Methods of removal and disposal of collected materials will vary with the material, plant process, quantity involved and the collector design. Dry collectors can be unloaded continuously or in batches through dump gates, trickle valves and rotary locks to conveyors or containers. Wet collectors can be arranged for batch removal or continual ejection of dewatered material by flight conveyors or draining as a slurry. Material characteristics can influence other problems, such as packing and bridging of dry materials in dust hoppers, floating of slurry forming characteristics in wet collectors, etc.

One of the most efficient type of dust collectors is Electrostatic Precipitator.

The principle of dust collection relies on the ability to impart a negative charge to particles in the gas stream causing them to move and adhere to the grounded or positively charged collector plates. Most precipitators are made for horizontal air flow with velocities 100 to 600 fpm. The collecting plates or electrodes are parallel elements, usually on 9-inch centers, and constructed in various ways including corrugated or perforated plates for rod curtains. The electrode rods are centered between the collector plates. Volatge difference between electrode and plate is 60,000 to 75,000 volts in most designs. Collector plates of cylindrical shapes surrounding the electrode tod are provided where water is used to wash off collected material and where the gas stream is under high pressure or vacuum.

Removal of the collected material is obtained by rapping or vibrating the elements either continuously or at predetermined intervals. Vibration or unloading usually takes place without stopping air flow through the cleaning cycle.

Pressure drop is low. Collection efficiency is high and nearly uniform regardless of particle size including sub-micron particles. Space is relatively large and cost is high where small gas volumed (below 50,000 CFM) are involved due to the cost of high voltage electrical equipment. Efficiency is improved with increased humidity of the air stream as a change takes palce in the dielectric properties of the dust. Heavy concentrations, on the other hand, cause a reduction in collection as the space chatge on numerous particles blankets the corona effect from the electrode.

Electrostatic precipitators have been extensively used in high temperature gas cleaning from equipment such as blast furnaces, open heart furnaces and central station pulverized fuel boilers. The chemical industry has many applications including sulfuric acids plants, carbon black, cement kilns and soda sh from paper mill black liquor furnaces. As voltage setting is close to the spark-over potential, application is limited to materials that are not explosive or combustible in nature unless the carrier gas stream is an inert gas.

For additional information please refer to http://www.nis-co.com/dustcollection/Index.html.

Oleg Tchetchel, Ph.D

Process Engineer

Canadian Air Systems

http://www.nis-co.com

http://www.nis-co.com/fumeextractor/Index.html



Heat Pump Maintenance

Stephanie Larkin asked:


Rising oil prices should no longer be a shock to anyone. The fear and trepidation of the uncertainty about how high they will climb is common. Planning for ways to reduce our reliability on fossil fuels is the logical next step. For those who live in the northern half of the northern hemisphere heating the home is a major concern.

Pellet stoves may be the answer for many folks. The pellet stove offers a low-cost fuel with very little mess. Unlike oil, propane, and natural gas it is not directly affected by the rising oil prices. It also does not have the mess factor associated with regular wood and coal burning stoves. Installation is fairly simple and the cost-benefit ratio is very good.

Pellet stoves cost between $800, for a low-end, basic model, and over $3000 for a more decorative, or larger model. The pellet fuel for these stoves varies in price by region, but generally runs around $225 per ton. There are many variables that must be factored in when looking at the efficiency of the pellet stove. The size of the structure being heated, the insulation factor, the regular maintenance and cleaning of the appliance and the outside temperature are all important pieces to the puzzle.

To understand the savings potential of a pellet stove, it is first important to look at the options. Electric heat can be expensive to install and the trade off in a higher electric bill may not really off-set the cost of oil. Coal is a very messy and inefficient, as well as environmentally unfriendly, method of heating. Solar heat is very “green” but expensive to install and at times very inefficient.

A wood stove or wood furnace can certainly supply the needed heat to keep a house warm through even the harshest winter. The problem is that even the cost of wood is climbing and you have to have storage for the wood, for the stored wood and the wood being burned. This translates into a lot of mess. Woods efficiency as a heat source varies depending on the type and the method of burning. If a stove is lit and allowed to burn out and cool and must be re-lit, a lot of heat is lost to reheating. The wood itself has differing BTUs depending on type. The biggest cost with a wood stove, after the cost of installing a chimney, and proper installation of the stove, is the labor. It is a labor-intensive means of heat.

That brings us to fossil fuels. Propane can be an effective heating source, but it is not a great choice for heating large areas. Natural gas is another great choice for the fireplaces or room heaters, but not as cost effective in large areas. Fuel oil is the most common full-house heating fuel. Oil furnaces were very popular a short time ago due to their convenience. You could set the thermostat and then, as long as there was oil in the tank, your house would stay at that temperature without any effort from you. That was until the prices climbed to uncomfortable, and then almost impossible, heights. Now, to heat an average home through the winter it takes around 800-900 gallons of oil. When the price was down around $1.50 per gallon, heating costs figured out to $1200-$1350 per winter. Now, with a projected price of $5.00 per gallon, that heating price tag climbs to $4000-$4500.

Now, in steps the pellet stove. For that same home to heat with pellet heat over the same winter it would consume about 3 to 4 tons of pellets. This, at the current price of $225 per ton, would come out to $675 to $900 in heating costs. Factor in the cost of a mid range pellet stove ($1500) and installation ($300) and you still have a total first year cost of only $2700. That is still a savings of $1300 off what the projected oil heating cost would be for the same time frame.

It is not hard to see the benefit of a pellet stove when the numbers are examined. The pellet stove is a very efficient heating appliance. It has very little ash production and a 40 pound bag of pellets will last 24-48 hours depending on the size of the space being heated and the temperature being maintained. Those who still need the convenience of set it and go heating will find the thermostat control on the pellet stove convenient. Many people are using a combination of oil and pellet heat to cut down on overall oil use and reduce heating costs. Burning 1 ton of pellets can reduce oil use by up to 500 gallons. This has the potential of saving the homeowner $2275 in heating costs for the winter. That savings is hard to argue or ignore.



Heat Pump Service Maryland

Shafir Ahmad asked:


A checklist is the best way to get organized for any event. Most of us make a grocery list before going to the store, why not make a list for everything else in life? The benefits greatly outweigh the time that it may take to make one. The more checklists that you make, the faster you will get at it. So what kind of checklists should you make? The following lists some general ideas for checklists:

Checklist for everyday. Start your mornings by making a list of all the things that you need to accomplish each day. Carry it with you and mark each item off when completed. This will give a great feeling of accomplishment and closure.

Household maintenance. Develop a household maintenance list divided into months. For instance for the month of October or November your list may include cleaning the gutters. Every month may have a day to change the filter on your furnace or central air unit. Check the list a few months in advance to see if you need to schedule specific maintenance people to do a job for you.

Christmas preparations. This list will only be used once a year but can save a lot of time and frustration. List dinner preparations such as what recipes to use, who to invite etc. You may want to include the date that you should send out Christmas cards and who to buy for including their special likes and dislikes. This will alleviate a lot of stress for you during the hectic holiday time.

Packing list. Packing for vacation or for just going on a business trip can seem like a daunting task. Make a list of everything that you need to pack. Include on your list things that you need to arrange before leaving on vacation such as stopping your mail, giving the neighbor the needed information, turning down the thermostat and car maintenance.

Christmas gifts. You use this list once a year also, and it too saves you a lot of time. List all the people for whom you need to get presents for. List the items that you intend to get for them, and when you should complete the shopping for this. If you are buying online, plan for the delivery time as well.

Weekly cleaning list. A weekly cleaning list should be developed and hung on the wall for everyone to see. Beside each job include the person’s name that is responsible for the job that week. Make sure they mark through the job when completed.

Car Maintenance checklist. Schedule times when you need to make appointments for an oil change and general car maintenance.

Developing checklists for your life with go a long way in reducing stress. Having a list will also make it easier to delegate tasks to other people in your household. The great thing about these checklists is they can all be stored on your computer and printed out as needed. Or if you prefer, create a special binder for all of your checklists. Once you start making checklists, you will wonder how you ever lived without them.



Heating Service

Stephanie Larkin asked:


A corn pellet stove is one of several types of pellet stoves - kitchen appliances that burn either wood pellets or biomass pellets that are fed into a burning pot. These pellet stoves are used in residential and even industrial sites mostly for heating and sometimes even for cooking. They can be free-standing or they can be inserted onto fireplaces and vented towards a chimney. The use of biomass matter for pellet stoves and heaters came about as a result of the global fuel crisis that necessitated the use of alternative and renewable sources of energy.

Fuel for pellet stoves

Users of pellet stoves utilize cherry pits, sunflower seeds, even wheat as biomass fuel, but a lot of these pellet stoves’ makers opt for the use of another biomass fuel - corn. While wood may be the original choice, and the other seeds and pits additional choices, most pellet stove users swear by corn pellets. Pellet stoves that are specifically made to use corn pellets are becoming more and more in demand because they have been proven to be more fuel efficient and less maintenance-intensive. Although a corn pellet stove looks almost exactly like a wood pellet stove, the former usually does not require a chimney as it is highly efficient. It can simply be vented through pipes to an outer wall. As such, corn pellet stoves may be used to heat almost any room in a house.

How it works - the basics

Like any other pellet stove that has a hopper, auger, blower, firebox, vacuum, and control box, a corn pellet stove feeds the biomass pellets from the hopper through the auger or screw onto the firepot. The auger is used to control the heat. The blower is used for combustion and exhaust as it blows combustion air over the pellets and forces smoke outdoors. The stove mechanisms allow for efficiently clean performance. The intense heat that is produced by the stove is highly concentrated. The convection blower and heat exchangers allow for the circulation of the heated air towards living or cooking spaces.

The use of corn pellets ensure clean, pollution-free burning so that chimneys are no longer required for the corn pellet stove. A vent from the stove towards a window or opening outdoors will suffice. With its highly combustible nature, the use of corn in the pellet stove enables the heating of average-sized homes on less fuel, and less money spent for fuel of course, compared to other traditional and conventional fuels. Like a traditional furnace, a corn pellet stove is combustion-based - burning the corn pellets and warming up the surroundings as heat radiates from the flames. The secret is in the gradual feed of the corn pellets through the hopper, allowing for consistent heat which is not possible if the biomass fuel lot is simply dumped onto the fire. The larger the hopper, the longer the stove is able to continuously burn to provide long-term heating.

Another aspect of the corn pellet stove’s efficiency is the heat-exchanger inside the furnace. The heat exchanger, like that in a gas-furnace, extracts heat from the exhaust. The result is a more efficient heating system that allows for more space areas to be heated for less fuel consumption. It will only be a matter of strategically positioning the corn pellet stove in a residential or industrial structure to get the optimum heat from the contraption. Facility of locating is addressed easily as the stove is simply vented, no need for a chimney, so that smoke exhaust is forced outdoors.

Over and above the efficiency is the environmental issue. There are a lot of contentions that corn is a cleaner fuel, with less harmful emissions than traditional wooden fuel. Burnt corn leaves less ash, reportedly, less than the ash resulting from burning wood of equal quantity to the corn fuel. The construction of a corn stove pellet also allows for the ability to push ash out of the stove’s top towards a pan for easy emptying. The fire is thus allowed to burn continuously for a consistent, continuous heating. Then there is the safety issue, where fire is more controllable in a corn pellet stove, and outside areas are shielded and protected through the use of the blower that has an effect similar to bellows where despite hotter flames generated, the flames are confined to the stove area and are in no danger of accidentally touching on external or surrounding combustible materials.

With all these advantages of a corn pellet stove, including efficiency, economy, environmental-friendliness, and safety, a lot of residential and industrial users prefer it over the traditional wood-fed stoves.



Heat Pump Service Virginia

The House Team Of Mortgage Intellingence asked:


“Ready for winter?” We love to ask that question when the weather starts to chill each autumn. But this year, getting ready for winter means preparing yourself for heating costs that are running at all-time highs. It’s time to get serious about saving energy in your home. The good news is that, what’s good for the wallet, is also good for your health. Here are some top tips:

Keep it cooler.

Turn down your thermostat if you do not have elderly or infant residents. Adopt the “après ski” look at home; a high thermostat can dry out our nasal passages, and make us more susceptible to colds and flu.

Program your thermostat.

If your home is unoccupied during the day, a programmable thermostat will keep your home cool during your absence, and then kick in with welcoming heat just before you return. You can also keep the heat low during your sleeping hours, but still wake up to a warm house in the morning.

Maintain your furnace.

Regular maintenance of your heating unit will help keep your energy bill down too. Make sure that you have your furnace professionally checked at the beginning of the heating season. Late summer or early autumn is the best time to book your appointment, so keep this in mind for next year. Try to change furnace filters often.

Keep the cold out.

Good storm doors and windows are a necessity in most of Canada. But they’re only as good as their installation. Invest in superior quality products, have them professionally installed, and you will recoup your investment monies in no time.

Insulate, insulate, and insulate!

Especially in your attic. Heat rises, so just as a good hat keeps in our body heat, so a well-insulated attic holds in your home’s warm air.

Get out the caulking gun.

There are many hidden places where your expensive warm air escapes out into the cold. Walk around with a lit candle to check for drafts. Caulk around sill plates, doorframes, window frames, attic entrances, chimney flashing, and anywhere that any wiring, ducting, plumbing, or flues penetrate your exterior walls. Remember to insulate all of your exterior electrical outlets too.

Watch those kitchen and bathroom fans.

Your fans are blowing out your expensive warm air, so use them wisely. You don’t want mould, but you may want some extra humidity. Clean and reverse your ceiling fans - they’ll help keep the warm air down where you need it.

Warm the floor.

You may love hardwood, stone or tile, but you need cozy carpets underfoot during the winter months. Many people roll their rugs up again when the weather warms.

Use the snow.

Snow is a great insulator. Some homeowners swear by the practice of banking snow around the foundation, especially in regions where the “basement” is an unheated crawlspace. Be sure not to block any furnace or dryer vents.

Keep a blanket box or basket.

Have some cozy throws available where people gather. Invest in down duvets for your bedrooms - nothing else provides such instant comfort. Smaller down-filled throws are new on the market, and are great for snuggling under during those evening hours spent in front of a book or a movie.

There’s no question that fuel prices will hit Canadians in the coming months. Look for ways to be a frugal user of home heating his winter: it’s healthy, wealthy and wise.



Heating Repair Virginia

Oleg Chetchel asked:


A new high pressure MVA series mixed flow in-line fans finally resolves the problem of pushing air through high resistance and long ventilation ducts.Mixed Flow fans are an excellent choice for return air, supply, or general ventilation applications where low sound is critical. As compared to similarly sized tubular centrifugals and vane axials, a mixed flow fan will be 5-20 dB quieter! In addition, the mixed flow wheel is extremely efficient and will cut down on operating expenses.

Unique features of the MVA Mixed Flow Fans include:

- Universal Mounting System that allows the unit to be field rotated at the job site

- Compact design with standard slip-fit duct connections for ease of installation

- UL/CSA listing for electrical is available

- Continuously welded housing with a standard powder paint finish suitable for indoor or outdoor applications

- A complete three plane vibration test of all assembled fans prior to shipment

Model MVAB: 

* Belt drive construction with motor out of the airstream

* Air Handling Quality bearings selected with a minimum life in excess of L(10) 50,000 hours at the maximum operating speed

* Performance capacities from 1,000 to 100,000 cfm (1,700 - 165,000 m3/hour) and pressures up to 8 in. wg. (2000 Pa)

Model MVAD:

* Direct drive construction eliminates belts, pulleys, and shaft bearing maintenance

* MVAD design is more compact for space critical application

* Partial wheel widths allow for wide performance capacities ranging from 500 to 105,000 cfm (900 - 170,000 m3/hour) and pressures up to 9 in. w.g. (2300PA)

Another in-line fan for for air moving in round ducts by Tenderall Fan Co. is a high pressure small vaneaxial fan finally resolves the problem of boosting air flow in long ventilation ducts of today’s large residential houses.For a long time the efficient ventilation of remote rooms in the large houses could be done only with two independent air supply sources (like a furnace). Ventilating ductwork in contemporary large houses becomes so long and elaborated that even a high pressure furnace fan couldn’t generate enough static pressure to blow through the whole length of such a duct. The existing low pressure booster duct fans, even though compact enough to be installed in-line in the house ventilation ductwork, still do not provide enough booster pressure / airflow. The usual solution to this problem was installation of two independent furnaces with different air ducts, which is rather expensive option.

A new high pressure (up to 1.5″ WG) small vaneaxial Series VA fan is an ideal booster fan for prolonged ducts. Unlike inline centrifugal ventilator, that also generates rather high pressure, the air comes out not from a peripheral outlet ring area, but distributes evenly across its outlet opening like in true axial blowers.

The other advantages of VA Series vaneaxial ventilators is their intrinsic spark-resistant construction because of all-aluminum construction; quiet operation of true vaneaxial design; lower energy consumption due to efficient wheel design.Eight different sizes from 6″ DIA to 10″ DIA offer wide performance range for any ventilation duct design. Direct drive design ensures long live, maintenance-free operation. Explosion proof motors are available too, as well as sliding dampers, various mounting options, additional sound isolation.

For additional information please refer to http://www.tenderall.com/airhandler/index.html.

Oleg Chetchel

Canadian Air Process Engineer

Tenderall Fan Co.

http://www.tenderall.com/blower/index.html

http://www.tenderall.com/fanblower/index.html



Gas Furnace Service

Jb Anthony asked:


Carbon monoxide and fireplaces are a dangerous combination. Carbon monoxide is a type of gas that kills almost 300 people in their homes each year. Carbon monoxide is given off by burning any fuel. Therefore, any fuel-burning appliance in the home is a possible CO source. When appliances are kept in good working form, they produce little CO. Appliances that aren’t operating properly can produce deadly CO concentrations in your home. CO poisoning can also be caused by using charcoal grill inside the house or when a car is left running in the garage. Sources of carbon monoxide include room heaters, furnace, charcoal grill, range, water heater, auto in closed garage, and fireplaces. Precautionary measures must be taken to avoid the deadly duo that’s carbon monoxide and fireplaces that are inadequately maintained.

Fireplace safety tips include the following:

· Fuel-burning furnaces, appliances, or fireplaces should have at least one CO detector that’s ideally situated, such as in a hallway or sleeping area.

· The fireplace damper must be opened before lighting the fire. It should be kept open until the ashes have cooled. The damper must not be closed if the ashes are still warm. The build-up of poisonous gases inside the home can be avoided if the damper is left open. When carbon monoxide

· Gasoline, charcoal lighter or other fuel should not be used to light or relight a fire since the vapors can explode. Flammable materials must never be kept near a fire. And, flammable liquids must never be stored in the home. Charcoal must never be used in a fireplace because of the risk of carbon monoxide poisoning.

· A chimney that is blocked or clogged due to leaves or soot can cause combustion byproducts, including CO, to be expelled into the home. Cracked masonry could also cause an obstruction. Regular inspection and cleaning using a chimney sweep can help helps prevent or remove blockages. The chimney could also be fitted with a screen cap to dissuade nest-building.

· A common source of carbon monoxide include wood-burning and gas powered fireplaces. To make sure there is fresh air, the window should be left open a few inches. Treated woods, painted wood, and scrap lumber should not be burned in a wood burning fireplace. Only seasoned firewood must be burned.

· The chimney dampers must also be opened before using fireplaces. Opening it can produce a draft that goes up the chimney. This will provide the fire air to burn efficiently at the same time providing ventilation of smoke and carbon monoxide.

· Gas logs or burners emit a lot of CO since the less-efficient, yellow flames are desired for a cozy atmosphere. Those who own ventless fireplaces must be extra careful since these appliance expel all combustion byproducts into the room. While the fireplace is run, the combustion process is fueled by the oxygen taken from the room. When there is less oxygen, the combustion becomes less efficient, giving off more CO.

· Regular inspection and maintenance of the flue, burner, and chimney should significantly lessen any CO troubles affecting the furnace.

· A qualified technician must be hired to examine chimneys and fuel-burning appliances. This is to ensure that these devices are functioning properly. The technician should also check that there is no blockage that’s preventing the harmful fumes from being vented out of the house.

These are just some measures that people can take to guarantee a safety home. It’s a better alternative to spend a few dollars on proper maintenance of the home than to suffer the consequences of neglect.



Heat Pump Repair

Amy Nutt asked:


Air ducts are used in the home for distributing the air heated by furnaces or cooled by air conditioners to the entire house. These ducts tend to be made of metal and run along the floor joists which means that you can only see them when you are in the basement. Over time, these ducts collect dust and debris inside of them and as time goes on, the dust gets blown back into the air that you are breathing and living in. Just like chimneys, air ducts need a good cleaning every once in a while.

Cleaning your ducts will give you cleaner air which means better indoor air quality and it helps to get rid of molds, dust and allergens that tend to build up. Cleaner air helps to keep people from developing allergies to dust and pollen and it also helps to make it easier for asthmatics to breathe. Another advantage to cleaning your ducts is that it keeps the dust down in the house so that you don’t need to dust nearly as often. Duct cleaning on a regular basis will also reduce energy costs and result in more airflow in the furnace system which means that you will get a better delivery of warm air. So now that we have determined why you need to clean your ducts, the only question is do you dare to clean them yourself or do you want to take the easy way out and get the professionals to do it for you?

There is one main advantage of cleaning your air ducts yourself which is that you save a whole lot of money that you would have spent on hiring a professional. If you do decide to clean them yourself, you want to make sure that you vacuum the vents as far as you can reach inside of them. Wipe the vent walls with a damp cloth and try and get as much dust and debris out of them as possible. Once you’re done vacuuming and cleaning, make sure that you put the vents back on properly and secure them tightly so that nothing falls down them. Cleaning them yourself is much cheaper but there are some disadvantages as well.

As much fun as it is to get dirty and use your vacuum to clean your vents, they will never be as clean as if you were to get a professional to do them. Professionals have all the right equipment including longer hoses and disinfectants that they ensure goes through the entire duct system to eliminate mold, bacteria and dust mites. Another advantage to having a professional clean your vents is that they are able to do it quickly and easily and will be out of your house in no time.

So if you are able to financially, the best thing to do is to get your ducts cleaned professionally once a year at the beginning of the heating season and then do it yourself as maintenance ever two or three months until the next year when you get them in to clean them again. This way, you are able to rest easy knowing that it is done properly at least once in awhile and still be able to save money doing it yourself the rest of the times.



Heating Repair

Oleg Tchetchel asked:


A newly designed high pressure small vaneaxial fan finally resolves the problem of boosting air flow in long ventilation ducts of today’s large residential houses.

For a long time the efficient ventilation of remote rooms in the large houses could be done only with two independent air supply sources (like a furnace). Ventilating ductwork in contemporary large houses becomes so long and elaborated that even a high pressure furnace fan couldn’t generate enough static pressure to blow through the whole length of such a duct. The existing low pressure booster duct fans, even though compact enough to be installed in-line in the house ventilation ductwork, still do not provide enough booster pressure / airflow. The usual solution to this problem was installation of two independent furnaces with different air ducts, which is rather expensive option.

A new high pressure (up to 1.5″ WG) small vaneaxial Series VA fan is an ideal booster fan for prolonged ducts. Unlike inline centrifugal ventilator, that also generates rather high pressure, the air comes out not from a peripheral outlet ring area, but distributes evenly across its outlet opening like in true axial blowers.

The other advantages of VA Series vaneaxial ventilators is their intrinsic spark-resistant construction because of all-aluminum construction; quiet operation of true vaneaxial design; lower energy consumption due to efficient wheel design.

Eight different sizes from 6″ DIA to 10″ DIA offer wide performance range for any ventilation duct design. Direct drive design ensures long live, maintenance-free operation. Explosion proof motors are available too, as well as sliding dampers, various mounting options, additional sound isolation.

Another high pressure in-line fan developed by Canada Blower is CB Miced Flow Fan. Mixed Flow fans are an excellent choice for return air, supply, or general ventilation applications where low sound is critical. As compared to similarly sized tubular centrifugals and vane axials, a mixed flow fan will be 5-20 dB quieter! In addition, the mixed flow wheel is extremely efficient and will cut down on operating expenses.

Unique features of the MVA Mixed Flow Fans include:

- Universal Mounting System that allows the unit to be field rotated at the job site

- Compact design with standard slip-fit duct connections for ease of installation

- UL/CSA listing for electrical is available

- Continuously welded housing with a standard powder paint finish suitable for indoor or outdoor applications

- A complete three plane vibration test of all assembled fans prior to shipment

Model MVAB:

 

* Belt drive construction with motor out of the airstream

* Air Handling Quality bearings selected with a minimum life in excess of L(10) 50,000 hours at the maximum operating speed

* Performance capacities from 1,000 to 100,000 cfm (1,700 - 165,000 m3/hour) and pressures up to 8 in. wg. (2000 Pa)

Model MVAD:

* Direct drive construction eliminates belts, pulleys, and shaft bearing maintenance

* MVAD design is more compact for space critical application

* Partial wheel widths allow for wide performance capacities ranging from 500 to 105,000 cfm (900 - 170,000 m3/hour) and pressures up to 9 in. w.g. (2300PA)

For additional information please refer to http://www.canadianblower.com/blowers/index.html.

Oleg Tchetchel

Ventilation Systems Designer

Canadian Blower

http://www.canadianblower.com

http://www.canadianblower.com/fans/index.html



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