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Heating Ventilating and Air Conditioning

Heating, ventilating and air conditioning (HVAC) refers to a system used in designing automotive or indoor environmental comfort. It uses ventilation air ducts to provide cooled or heated air to an automobile or a building through outlet vents.

28,228 Questions

Are goodman furnaces any good?

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Goodman backs their furnace with a 10 year parts and lifetime on heat exchanger warranty on most models. so they must be pretty confident about their product. The older entry level furnaces had a noisier burner than most but the new models are about the same with other makes. Some might say it is cheaply made but all entry level furnaces wether it is Trane,Carrier or Lennox are cheaply made.You just pay a lot more for those furnaces because of all the advertising. As far as reliability and performance, I don,t see any problems with the current models.Some will say that the sheet metal cabinet is not as thick as the other brands but that only matters if your going to sleep on top of it.The important part is that it is sized properly and installed by a reputable company.I have installed and service all these brands and I

don't see the advantage in installing the more expensive brand cause they all break and some were even DOA. I have had customers who insist in installing Carrier and Trane and get upset when their unit breaks down and can't believe that it did especially when the one year labor warranty is up.

What is objective of air handling unit?

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An air handler, or air handling unit (often abbreviated to AHU), is a device used to condition and circulate air as part of a heating, ventilating, and air-conditioning (HVAC) system. Usually, an air handler is a large metal box containing a blower, heating and/or cooling elements, filter racks or chambers, sound attenuators, and dampers. Air handlers usually connect to duct work that distributes the conditioned air through the building, and returns it to the AHU. Sometimes AHUs discharge (supply) and admit (return) air directly to and from the space served, without ductwork.

Small air handlers, for local use, are called terminal units, and may only include an air filter, coil, and blower; these simple terminal units are called blower coils or fan coil unit. A larger air handler that conditions 100% outside air, and no recirculated air, is known as a makeup air unit(MAU). An air handler designed for outdoor use, typically on roofs, is known as a packaged unit (PU) or rooftop unit (RTU)

What is drum boiler?

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A drumless boiler is obviously a boiler without a drum. The steam is fed into a header, then into a turbine for making electricity. Quality control of the water used is of extreme importance. Since there is no water level in a drum to maintain, feedwater must be constant with no interruption of any kind. With a drum type, water feed can be interrupted for a very short time. Not so with a drumless type.

How many square feet does a 5000 BTU heater heat?

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There is a lot more to it than square footage. To find out the heat load on any room or home you need to have a load calculation performed. This is a process that takes into account location, construction features, etc. With a portable heater (which is what you're talking about if it's 5,000 BTU), you can estimate heating ability with the 10 - 15 watt per square foot rule of thumb. So, 1,500 watts (5,120 BTU) will heat about 150 - 225 square feet. To go from watts to BTU, multiply watts by 3.4.

How much amperage does a gas clothes dryer draw?

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Check the nameplate rating on the door or door frame of your washer, it should tell you the amp rating or the kw rating of the machine. If it only has the KW rating of the machine, simply divide the KW rating by the voltage of the receptacle and it'll give you the current (ampere) rating. Typically, a modern washing machine will draw approximately 7-12 amps. However, anticipate a higher amperage when starting the machine as the machine will draw 1.5X the rated current to start the machine (starting current). Regardless of the amp rating, the NFPA-70 (National Electrical Code) requiresa 20 Amp fuse or circuit breaker; and the circuit for the washing machine must be on its own, dedicated circuit.

What are the names of companies who manufacture portable air conditioners?

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Portable air conditioners are mobile air conditioning units that allow for areas where a fixed air conditioning unit is not feasible. It functions essentially with the same functions as a standard AC unit. Companies that manufacturer portable AC units include AeroSys,Amana, Aprilaire, Coleman, and Comfort-aire.

Can you put TVs over fireplaces?

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What could be more relaxing than curling up in front of a fireplace to watch your favorite film. A TV over the fireplace is a great way to get to create a relaxed atmosphere in your living room. This will create a soft focal point that will welcome guests into your home and immediately make them feel at ease.

Why is black pipe used for natural gas lines?

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Natural gas is corrosive and black pipe does not corrode so there is no debris to clog the lines. A more common form of gas pipe is corrogated stainless steel. Especially in residential homes. For more information visit www.plumbingspecialists.com and check out their natural gas page under servies.

What are two places where one might purchase a portable air conditioner?

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One can purchase portable air conditioner units at many retailers. Sears, Walmart, Target, Canadian Tire, Home Depot and Lowe's all carry various portable air conditioners which one may find suitable.

How big of a breaker do is needed for a 5000 btu air conditioner?

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A 5 ton air conditioner will need a two pole 40 amp circuit breaker to supply 240 volts over a cable of #8 copper wires. Included in this cable will be a #12 bare ground wire.

Where can you purchase an air heat pump?

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Because an air heat pump is a machine that is used to keep in-home temperatures stabilized, it is considered a "home-improvement" device. You can find dozens of Home Improvement stores that will sell this type of item. For example, Loewe's Home Furnishings and Home Depot are two of the many stores that may sell air heat pumps.

How many watts to run a 13.5 btu airconditioner?

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my aircondition is 13000 btu on 220 volt ac is how many watts

What is function of air dehumidifier machine?

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A dehumidifier takes the humitdity out of the air so during the year so feel comfortable

Why are pipes insulated?

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To protect them from frost damage. In cold weather, 'standing' water in cold pipes can freeze if the temperature drops low enough. When water turns to ice, it expands - which could cause the pipe to burst. However - you wouldn't know if it had burst until the ice had thawed !

Why does a pilot light goes out on a water heater?

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The pilot could be dirty and may be too weak to heat the thermocouple properly.

Most of the time it comes down to replacing the thermocouple.

ANS 2 The thermocouple costs less than $19 and can be changed in about 30 minutes. Best to first Shut off gas, and remove your one, then take to the store for comparison. There are 5-6 different types but all very similar. Honeywell Universal is good for many heaters. This is essentially a thin copper tube 18 -30 inches long, with a metal bulb at one end and a hollow nut at the regulator end. Many good instructions on internet about how to do it

How many sq ft will a 28000 Btu heater heat?

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NOT A GOOD QUESTION WITHOUT QUALIFICATION OF PARAMETERS. HEAT LOAD? A 10' X 10' BOX WITHOUT WINDOWS?= MIGHT BE ENOUGH HEAT AT -5. A 30' X 40' HOME WITH R-19 WALLS AND THERMOPANE WINDOWS= PROBABLY ENOUGH. lc

My refrigerator is working fine but the freezer is not freezing what could that be?

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All of the cooling in refrigerators is normally done in the freezer compartment. A fan circulates cold air from the freezer into the refrigerator compartment to cool it. Most likely this fan has quit working.

How do you calculate electric load for 1tr of vrv air conditioner?

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normally 1tr ac means 12000 btu/hr=3.41kw

but the electric and ac tonnage capacity is entirely different

we have to divide the btu capacity with EER of the unit

norallay 1 TR power consumption will be

12000/10=1.2kw

What is the SEER rating for a rheem model rakb-048jaz?

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Rheem has a website. Best to look there unless this is an older model no longer supported.