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Heating Ventilating and Air Conditioning

Parent Category: Home Improvement
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.
With most pull chain fan switches, you'll need to replace the  switch, though on some models you may be able to reattach the  chain. To replace the switch, you will need to know whether it  operates the fan or light. If the switch goes to the fan, you will  need to know how many speeds the fan...
That will depend on the cost (and availability) of gas in your  area, when compared to electric costs. It will also depend on the  climate. At very cold temperatures (below 40 F) the heat transfer  element of an air/Freon heat pump does not deliver heat, and the  less efficient electric heat...
A commonly used formula is 600-650 square feet per ton. So it would  be recommended to use a 2-ton heat pump for a 1300 square foot  home. However, other variables are often considered, too, such as  the age of the house.
The rule of thumb is 400 sq ft per ton, but that is not always accurate. HVACCALC will show you why.
Hang a blanket over the door and get a small electric heater with a fan. New they should be about $20. Used can be $5. Do anything you can to seal the room from heat loss. Unless the window is insulated, covering it with blankets will help also.
Can't remember games    #1: Third person shooter. Your character has telekinetic abilities.  Story jumps back and forward through time.   #2: Third person action game. Has floating islands where you can  build things on to. You own your own controllable island.   #3: FPS that deals with...
Put in new filter Clean ventsClean air ducts
=== ANSWER: ===   Contact the manufacturer and inquire if they repair or replace the units with freon leaks. Also ask them if they can refer a repair shop near the town you live in. Quite simply, putting more freon in it will leak out and it will keep freezing up. Fix the leak.   >>>...
Usually the filter is right on the inside of where the return air  duct meets with the furnace. You usually have to take off the side  or front panels of the furnace to gain access to where the filter  is. Usually these involve sliding them up and out but it can vary.  Check an online owners...
To open the handle must pull it towards you. The handle has pivot  points allowing the door to open in steps.
The AC condensing unit needs two 24 volt low voltage control wires,  the high voltage will be 220 - 230 volts and requires 3 wires , 2  hot legs and a ground. You can buy pre made whips as they are  called cheaper than making one.
No. BTUs are heat (British Thermal Units) and cfm is a measure of air flow volume (cubic feet per minute)
R12 is almost impossible to buy, unless you go to a large-scaleauto parts supplier like Napa. They won't sell it to you unless youare a certified A/C technician. You can buy R134a easily at otherauto-parts stores, but be careful! If your car's A/C system isdepleted of all refrigerant, you have a...
I've a wood box stove with the text: "cozy n°40" on its left side.  In its front, below, appears "M C Hess Veijle". Martin Crhistian  Hess was the artist who made this stove in the city of Veijle,  Denmark. Greetings from Uruguay
All gas fireplaces have to have a shut-off valve within 10' and  that will turn so the key or the handle is parallel to leave gas on  and perpendicular to turn gas off. The valve inside the fireplace  turns but not indiscriminately. The inner valve will turn to the  pilot setting and depress to...
An average 3 ton heat pump on a 1200 to 1500 sq ft home in  California will typically have a 1500Watt (1.5KW) to 5000 Watt (5  KW) auxiliary heat kit installed.  This is not just for emergency heat in case of compressor  failure or too low of an ambient temperature to operate a heat pump ...
HVAC Service Technician
Contact the manufacturer of the unit. Give them the model and  serial number. See if they can send you one via email or mail.
All refrigerants remove and reject heat in the same way they  just do so at different temperature and pressure relationships, for  example, water at sea level "boils" or changes state at or above  212F, we can control the boiling point by adding or reducing the  pressure exerted upon it. Water...
Look at the control board for any flashing light for a diagnostic  code, without the make and model # I can tell you there are several  areas that can be causing this, low or high water level, high  temps, the flue being blocked or the pressure switch not closing  etc.
I have not ever heard of central air being run on anything other  than electricity. Therefore, having your gas turned off should not  affect it.   Central air is run totally by electric. You only need electricity  to operate your furnace blower in cooling mode so no gas is  required.and if...
There are corner fireplaces and there are corners near fireplaces  that are called nooks.
This means the highest point which the piping attains. typically  referring to where trapped air will go and be vented or bled out.
An air trap is where the air is bled out of a system normally,  there is also trapped air in some poorly designed systems or  systems with water having recently been added.
A corner electric fireplace is a fireplace that goes in a corner. Electric Fireplaces come in multiple shapes and sizes. You have standard floor models, corner models, wall mounted, TV and Media Mantles, and the kind that go directly into the wall. Corner Electric Fireplaces are made to have angles...
Transformers will make a buzzing sound when old or getting tired or  near failure, see if it is hot to touch? Measure its amp draw, it  should not be much, a 48 VA transformer will pull 2 amps max only  1.8 continuously.
A fireplace that is back drafting is reacting to a negative  pressure being created inside the home by a clothes dryer or leaky  furnace supply duct, bath vent or laundry went, water heater or  furnace, all of these devices expel indoor air which under certain  circumstances will create a...
Yes if you have electric heat and it is a heat pump. A heat pump is  essentially a AC unit that reverses itself to rejecting heat  indoors or outdoors.
It varies for each home. A manual J, D, & S should be performed  to determine the amount/size of ductwork that is needed.
Most output ranging from 560 to 600 btuh per foot, this is with 170  F water temps. I have no way to know your specifics from where I  am.
If installed properly by a competent contractor they are likely no better or worse than any other brand unless you buy a low end builders grade model. Like anything else you get what you pay for.
I'm an old (75) country boy who lived by a fireplace all my life, until I was in my 20's as the only source of heat besides the wood stove in eth kitchen, and I've never heard the corner by the fireplace to have a special name except "the corner by the fireplace." As in, "Stand it in the corner by...
they produce a large current of air that can affect the the way the  air feels
The thermocouple tells the gas valve to supply gas to the burners. If the thermocouple is bad then the furnace will not work or the pilot will not stay lit. A properly working one will have a reading of at least 12 milliamps.
Heat rises so a bottom supply will work best.
The pressure may be too high or the orifices obstructed by ash.
It has to do with reflection and how glass magnifies heat. When the sun streams toward the window, the room or person near the window gets hot. Yet, if you touch the glass, the glass itself may feel cool or cold because the colder outside temperature affects the surface of the glass. Next answer: ...
Kerosine and heating oil are the same thing
Heaters prior to 1978 had "standing pilots" meaning they were on  continuously, just like our water heaters still use today, since  then laws enacted made a standing pilot for California illegal and  the country followed Ca law.
If you have a heat pump it will be on the thermostat, if the  thermostat for some reason has been changed to manually wire up  emergency heat , remove the thermostat after you kill the power and  connect the red wire too the green and white wire then turn the  power on, you will have heat.
3 tons of refrigeration = 36,000 BTU's
.belthermal.com/Portals/74941/docs/bhtr-inst-instr_.pdf 
Heatilator is actually a fireplace manufacturer. Many people refer to fireplace blowers or fans as Heatilators.
Yes, however, wood can be carbon neutral. The process of burning wood also does not emit any additionalcarbon dioxide than the natural biodegradation of the wood if itwere left to rot on the forest floor. Over the course of a tree'slife it absorbs carbon dioxide from the atmosphere and thenreleases...
Without your make and model I can tell you , Heat, Cool, Fan On or  Off
None, a TXV operates by it's sensing bulb sensing superheat of the  suction line as it exits the evaporator coil.
No radiators work best by allowing air flow to rise through them, a  small fan will be better.
Yes both indoor and outdoor fans will operate, the only time 1 will  stop in heat mode is in defrost the outdoor one stops briefly to  defrost better,
With refrigerant gauges we read the pressures and measure the  temperatures, without that we look at the amp draw and what the air  temps are going in and out,
Heat load calculations need to be conducted for home to determine  the proper size furnace. There is no simple answer to this  question. There are a number of factors that can effect what size  your furnace should be. Example: square footage, duct work size,  insulation factors, windows etc. I...
No, it is preferable to use outdoor air which is then expelled  rather than blowing indoor air out so new cold air replaces it.
An easy way is to use a paint scraper. Any sharp edged object should be useful.It is important that you do this regularly...soot can actually catch fire if left to build up, and can therefore be very dangerous.
  == Answer ==   Follow the larger hose from the a/c compressor   Maybe near the drier at the passenger firewall
If you keep relighting the pilot and it keeps going out it is most likely a problem with the thermocouple. They are inexpensive and generally easy to replace but only if you are familiar with this type of work. If you plan on DIY be careful because you will be working with gas and electricity. Be...
Check air filter is clean , check control board for any diagnostic  flash codes.
They are too numerous to list here.
A blast furnace used in steelmaking is about 130 ft or 40 metres.
Yes, hot air rises, cold air falls.
Peter Ritter von Rittinger developed the first heat pump in 1855.. They have been used and in production well before 1980. Hope this helps..
It depends on how much your heat pump is used, checked, serviced, and how well it is maintained. (Always have your HVAC systems regularly maintained to increase life expectancy!) The usage of a heat pump varies greatly depending on where you live. Other factors can include if it is an air-source or...
  == Pretty Simple. Follow the instructions ==   Pretty simple, really. They typically have 3 wires, labelled to match terminals on the furnace, with pass through controls to the AC. Since the furnace fan is used to blow AC.    Buy a programmable and read the instructions. If you need to...
A Master Boiler Operator requires 15 years of experience and must pass a test. See related links for information about Minnesota boiler licensing requirements, forms, test schedules, and instruction manuals.
SEER acronym is ?
Find the name of the manufacturer, model, and serial number of your  unit. I recommend contacting a local HVAC company with this  information. They will be able to contact the manufacturer to find  out the efficiency. You can even call the manufacturer directly and  they may be able to get you...
Cost depends on where the furnace is to be relocated. Duct work  transitions may need to be made, electrical and gas lines may also  need to be ran. Contact a reputable HVAC contractor to give you an  estimate.
depends if it is fresh
Read the legend on the electric schematic, it will tell you what E1 is denoted as.
  a woodstove. they are really effective. i have one and it is so warm. you even save money using it instead of your furnace.
  == Answer ==   Chances are the compressor is not running. It could be a number of causes:   * Compressor is not getting power due to a bad connection  * Some AC units have a fan only setting. The switch may have failed and it is stuck in fan mode  * The compressor is toasted.  *...
The air filter will either be located at your "return" or "intake" grill (both are the same, different terminology only) or at the air handler. If you are talking about a refrigerant filter, you need a "bi-flow" refrigerant filter. Most people mount it nearest to the indoor coil and installed on the...
It depends on the efficiency you are looking for and the metal work  that needs to be done. Contact heating and cooling companies to get  estimates.
From the supply lines to install off your main gas line. If this is not done by a qualified person, you must have it inspected by your local codes.
In general terms it means a barrier to something, such as heat, electricity or between people It is actually spelt insulator and in an electrical term it means a peice of equipment used in circuits that allows the flow of electrons freely through a circiut.
well i mean just using logic, a ton is 2000 lbs. so it is probably15000 lbs...just using logic...
    Th middle and away from drafts and vent outlets
It happens because it's very smokey in the stove so you probably have the flue shut down. Simply open the flue some so you have a better flame rather then a smolder so it burns cleaner. Also have your chimney serviced at least once a year, try to burn seasoned wood (dry). Remember if you split green...
yes u can if u are good with duct work put a down draft furnace in a basement and pipe it up one floor well not recommended it will work i did this to help a lady get threw winter who had low funds and it has worked quite well u need to build a custom box for the furnace to sit on to make this work...
  == Answer ==   Check the thermostat. It may be stuck on. Try changing the temperature setting and see how it reacts. If you cant get it working by playing with it, you may have to have it replaced.
When you discharge a capacitor, sparks are produced.
WARNING . It is probably illegal for you to do this yourself, due to the nature of the refrigerant used. For your own safety, call a professional. They have the special tools and knowledge needed to do it right.. Answer . If your ac uses true freon call a professional. Freon is a CFC which...
It makes and breaks four separate contacts. Think of a switch for  example that connects one wire to one wire. A 4 pole contactor is  like 4 separate switches going on together.
The fuel does not matter, it would be more relevant to post if you are hot water or steam, that is where your problem lies. If steam try raising the boiler cutout pressure a little bit and if hot water look at the boiler pressure, does the pump work, is the coupling broken and do you have air in the...