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.
You don't! Buy one designed for gas. or electric.
You should put a plastic moisture barrier between the concrete and the studs so that moisture will not get to the insulation.
It means how much money you have to pay for each unit (usually cubic foot, metre cubed, or BTU) of gas you use in your home. A business can probably pay at a cheaper rate because they use a lot of gas.
If you are talking about a water leak from the a/c then check the drain and make sure that it has not fallen off or that its not clogged up or cracked and if its okay then check the case to make sure that it is not broken............
Insulate it completely wherever it is exposed to an unconditioned space.
Answer . AC units have a condensation line. This is a necessary option as cooling the air causes condensation, much like a cold glass of water will condensate on the outside of the glass. The condensate line should be draining to a safe place, and draining whenever the unit is running.. The unit...
1. First check to make sure that the system has freon in it... 2. If so the check the a/c clutch wire harness for both power and ground... 3. Check the pressure switches and relays as well......
A standard 1" non-pleated furnace needs to be changed once every 30days.
There is the possibility it is oversized causing it to heat the house, shut off and restart otherwise known as short cycling. Ideally the furnace would be sized to heat the house at the same rate the house loses heat on a design day.
Combustion is a chemical reaction defined by the release of carbon dioxide and water. When wood is burnt it releases water in a gaseous state, such as steam, and carbon dioxide. Though a wood burning stove may not heat up as fast as an electric stove, it may release less carbon dioxide. Obviously an...
The temperature should be set according to your comfort preferences. The temperature at which most people feel comfortable is in the range of 68°F to 72°F. Setting the furnace temperature higher will result in increased operating cost, as heat is lost through air leaks and radiation,...
Defective thermocouple or possibly a dirty or clogged pilot orifice.
There is no hard and fast rule for this since all houses, systems, thermostat locations and comfort levels are different. Experiment and go with what makes everybody happy most of the time.
Willis Haviland Carrier
It is normal for air conditioners to cycle on and off when they are controlled by a thermostat. Air conditioners only operate in full "on" and full "off" mode, and nothing in-between. The thermostat senses ambient air temperature; if the temperature rises above the setpoint, it sends a signal to the...
It should be listed on your utility bill as kwh (kilowatt hour). should be approx. 25 cents per kwh in the states.
It depends on what part of the country you live. Call a couple oflocal shops and get some estimates.
The typical piping configuration on a single row heating coil is to pipe the entering water (hot) to the bottom row and out the top, this ensures the trapped air gets purged and eliminates aeration.
Assuming you have access to the hinge mechanism. This item will probably be made of cast iron, and the hinge mechanism has rusted solidly. Care must be exercised to avoid breaking the cast iron as it is a brittle material, and some of its substance will have been consumed into making rust. Thus...
Yes. Federal laws define what can be called a vent-free applianceand the laws mandate a strict limit on the amount of gas flowing tothe appliance as well as oxygen-depletion sensors and safetyfeatures -- like a safety valve using a solenoid, electromagnet andthermocouple -- that make it impossible...
You will need a copy of the International Fuel Gas Code to start with. Turn to table 402.2 to get the BTU ratings for the appliances being installed, then turn to section 402.4 for the formulas to calculate your demand in cubic feet per hour, then turn to tables 402.4 (1-33) and choose the pipe...
There should be a drain valve on the boiler. Drain it to the desired water level there.
Answer . First, make sure that it is the overflow.. AC units have a condensation line. This is a necessary option as cooling the air causes condensation, much like a cold glass of water will condensate on the outside of the glass. The condensate line should be draining to a safe place, and...
Answer . sounds like just a blown fuse. get you owners manaual out and find the listings for the fuses..
Same way a non rotary compressor works
It's the pressure relief valves you always check. We wouldn't want that nasty old boiler to blow up and hurt someone, now, would we?
What a silly story! Van Gogh never visited a royal palace.
Basic steam desuperheating Desuperheating is the process by which superheated steam is restored to its saturated state, or the superheat temperature is reduced. Most desuperheaters used to restore the saturated state produce discharge temperatures approaching saturation (typically to within 3Â...
Before you blanket the ductwork, use foil tape to seal every opening and joint in the ducts. This is not optional. Next, you will need special foil-lined insulation wrapped around the exterior of the ductwork. Often installers use "stovepipe wire" to hold the insulation in place. It is vital that...
You should not place a TV on an electric fireplace, unless it is a TV and Media mantle. Most of the standard models are not secured enough to hold the unit. TV and Media Electric Fireplaces and constructed to hold the weight of all of your media.
The moisture on the inside of windows in a closed space comes from the water vapor (think steam that's too thinned out to see) in the air inside the closed space 'sticking' to (aka condensing on) the inside surface of the glass (doesn't matter if it's a car or a house or an airplane). This moisture...
You need to have a system performance test performed on the vehicle. If it turns out to be a leak, and the system needs to be opened up in order for parts to be replaced, you'll also have to replace either the receiver-drier or the accumulator (which one you'll have depends on whether or not you...
It does heat the house slightly. The heating is equal to the number of Watts of the fan. Why does the fan run all the time even when to heating is on? Because it is a silly design or the activation switch is stuck on.
only if it is connected to another heat source such as electric strip heat and are having problems with the heatpump. other wise you will get a big surprise when your utility bill comes in the mail.
Yes you can get a high wind cap for the vent.
I assume there is not a shut off on the supply side of the line. If you are used to working with gas, you can do it with the line charged, but it is probably best to shut the gas off at the main. If there is not a shut off valve where the flex line connects, I would put one there now. Then it is...
Answer . There is what is called a "blend controller" unit. Something has either jammed up or comeoff with the linkage. Unfortiontely it involves taking part of the dash apart to fix it. I would start with taking the temp control knob portion aprt and starting form there. Then trace the linkage to...
In order to find a heat load more information is necessary e.g. ceiling height; window sized and quality; insulation in walls, floors, foundation, ceilings; location and elevation et.al. Warning: "Rules of thumb" in heat load analysis, are useless to the layman.
Check for a vacuum leak or broken vacuum line first and if all is correct then you will need to check the a/c - heater controller..........
I did this exact thing in 2000. had a 4 ft crawl space under a 25 x 20. $18,000. No plumbing. I contracted every thing out except painting , insulation and heating duct work. what a great family room. m_stevens@roadrunner.com
Answer . More than likely you need to have your refrigerant recharged. or your A/C Compressor needs to be replaced..
Boiler load is the total "work" performed by the boiler. In residential application the boiler load usually refers to the total heat lost in a home on the coldest day of the year and is measured in the USA by British Thermal Units per hour. To find the load the accepted practice is to use the ...
At the lowest point of the system. Old-fashioned low efficiency boilers have own at the bottom of the heat exchanger. Note: Residential boilers should rarely if ever be drained. www.badgerboilerservice.com
Check for correct voltage, check Capacitor,check relays, check contactor, give the thermostat time to reset, give the solid-state relay time to reset, check motor windings for an open or or short.
Yes electric fireplace is a great idea for several reasons. I actually got feed up and asked myself the same question, answered it went out and purchased an electric fireplace. Here are the reasons I found it to be a great idea: 1) No need to go out and buy those fire logs or gel fuel 2) No...
You can use Diesel fuel inplace of your #2 heating oil it is the same, The only difference is there is a colord die in disel fuel showing that a road tax for the DOT has been paid.
Answer . Yes you can 250 volts is the maximun voltage rating of of this device. You will also need to make sure that you also use a receptacle that is rated for the amperage of your ac unit.
Any propperly installed hot water heating system will have a high point vent. This consists of some sort of valve at the highest elevation of the entire system. Since air is lighter than water air will collect at the vent point. When the system is under pressure partially open this vent to allow air...
Answer . Hi,. Typically when you see numbers such as 24/36/48/60 on model numbers of central cooling units or window units that is an indication of the work they are capable of performing in B.T.U.s an Hour. ( British Thermal Units per Hour).. So your unit indicates a 24 which can be refined to...
Sounda like you have a heat pump, more than likely you are low on refigerant
In order to maintain good air quality you need return air ducts for the furnace. The return air intakes also help balance the temperature differential in the room, return air also helps maintain a safe temperature for the heat-exchangers with out the return air helping reduce the temperature around...
Just about any wood CAN be used- but some is better than others.First avoid any wood with toxins- such as poison oak, or lumberthat had been treated with chemicals, such as the Chrome-copper-arsenic (CCA) treatment on "salt treated" outdoor lumber. Next, look for dry wood. Wood that has been cut,...
12,000 btus of cooling , a btu is a british themal unit
to let air flow in Thir are 2 on top and 2 on the bottom, what is the dfference
no because its expensive it does however burn well and has a higher calorific value than most conifers
In a Cold Climate and Hot Climate : Each ton of heat pump capacity can heat/cool approximately 500-600 square feet. In a Moderate Climate : Each ton of heat pump capacity can heat/cool 600-700 square feet. So either a 5.0 ton heat pump in a cold climate or a 4.5 ton heat pump in a...
When your air conditioner runs during the summer, air blows over the extremely cold cooling coil, through the filters and into your house. When the air moves over the coil, it deposits most of its heat into the coil, meaning that it's cooled down when it moves into your house. If you have a...
No, furnaces are forced air heat. Boilers are hot water heat.
The largest household unit is 5 tons, which I install in California for your square footage. Depending on your construction two units splitting the load may be warranted. If you are building a new home it is better to overkill with insulation than spending extra energy money to heat a shell.
According to this site here: http://www.sizes.com/units/rvalue.htm 3/4" plywood has an R-value of just under 1 (~0.94). The R-value goes significantly up (~2) if one side is reflective (e.g., aluminum surface), I assume the hotter side.
This depends on the switch. A lot of older fireplaces have amillivolt valve with a toggle-switch sticking out. We usuallyremove the toggle switch and run the 2 wires that were connected tothe toggle to a remote receiver box. This way any simple remotetransmitter will act like an electrical toggle...
Not all fireplaces have blowers so this is going to depend on yourmodel. The blower is a part of the firebox and is usually insertedin a trap-door under the floor of the fireplace. From there thespinning louvers will send air out the bottom front or up along theback wall to turn and emit from above...
Yes, I put a slight bend (approximately 20 degrees) to the sensor rod to insure that the tip was positioned better in the pilot light. Be sure not to crack the ceramic insulation. The result was a more reliable ignition to the burners.
The thermostat is a basic switching station. One hot wire, usually red in color is switched to various circuits to turn on the following components; indoor fan, compressor, reversing valve, supplementary heat strips. Usually if your thermostat can still turn on any of these items your thermostat is...
Your climate control in your 1998 Ford E250 Cargo Van blows cold air when in heat position and sometimes it blows warm air when in the cold position?
choose the right AC . The only way to determine the proper size air conditioner required is to have a load calculation performed. This takes into account the construction features of the home as well as its' location. . that is the only for sure way to get it dead on, a trick i use a lot is 700...
Answer . Check the heater control valve. If it's stuck slightly open, the heater may be fighting against your AC system. BTW, that's the most common reason for the condition you describe.
Then it won't work properly. Try spraying it with warm water. Chipping the ice off with a chisel is not a good idea: it's easy to break the heat-exchange fins.
Trane A/Cs have excellent warrentys. If it is icing up you need to call the dealer for repair. Sure you can heat the house. The furnance and A/C are separate systems. Remember to change the filters.
la mont boilar what working
Plastic. fiberglass. ceramic. cork, eider down is not the insulation... the insulation is the dead air in the small cells plastic is combustible, glass is not fiberglass is a better choice for habitable areas
It's next to impossible. You could try chipping it off, or you bring the stove outside and burn off the plastic.
Between (.07) and (.24) BTU per cubic foot. For Central Air, might be better to use (.07 BTU per Cu.Ft.) For window AC unit cooling 150 square feet, use (.024 BTU per Cu.Ft.) For window AC unit cooling 1600 square feet, use (.07 BTU per Cu.Ft.) [[[ All scenarios assume 8 foot ceilings ]...
Alice H. Parker invented the new and improved gas heating furnace. The heating furnace is still used today also.
you have to cut the window and use glue and duck tape to hold it
It takes 970 B.T.U.s to change one pound of water to steam at any temperature. When water evaporates from your skin, from a glass or swimming pool at room temperature it takes with it 970 B.T.U.s per pound of water. It is not necessary for water to be heated to 212F to evaporate. Whenever water...
Tax laws change every year. Check with your accountant.