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Should the return at the bottom of the wall be open or closed when the furnace is on?
Wiki User
∙ 14y ago
Open, that`s where the cold air is.
Wiki User
∙ 14y ago
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Do the return vents attached to furnace need to be closed when air conditioning is running?
Not really, there's not much airflow when the furnace is not running.
How do you change the filter in a Rudd Sihlouette II gas furnace?
turn off power to furnace and remove the bottom door to the blower compartment,the filter should be on the right side of the blower housing or it may be directly below the blower housing on the bottom of the furnace depending on how your return duct is run. hope this helps,FYI filters s/b replaced or cleaned every 30 days.
Why a cold air return is needed in a furnace?
A cold air return is similar to a return air grille, which is needed for air to travel to the furnace to be filtered, heated OR cooled and then recirculated.
Where is the filter located on a lennox g8r-110-m-1 furnace?
Try looking where the return air duct connects to the furnace, if not there the next place to look is in the return air grille in the living space. Either way it is somewhere in the return air duct between the grille and the furnace.
Goodman hot air gas furnace and you get more heat out of your vent then you do your registers in your house what could cause this problem?
Closed dampers or registers, not sure what you mean by vent. Chimney? Return air grille?
Can you cover your cold air return for more heat?
No You can't cover the return air. Because the limit switch in the furnace will trip. If the furnace was working ok before I will check for air leaks in the return air. Good luck
Do you need a cold air return on your furnace?
YES! If you do not have a cold air return on your furnace, you will have much higher heating bills as you will not be circulating the cold air from your home back to the furmace to be heated again.
Can you pre heat the return air for an electric attic furnace?
Yes you can but why would you want to preheat the air, it should already be around room temperature.
Can a down draft furnace be mounted on its side or back?
I'm assuming that by "down draft furnace" you mean a counterflow or downflow furnace. This furnace takes its "cold air return" at the top, and blows the warm air out the bottom (typically, into ductwork that runs under the floor).Older downflow furnaces were dedicated to that configuration, and could not be mounted in other positions.Nowadays, most furnace manufacturers make "multi-poise" furnaces. They can be mounted in downflow, upflow, or side-flow positions, when they are installed according to the manufacturer's certified instructions.The HVAC Veteran
Why does Air conditioner blowing cold air from top not bottom?
More than likely the air handler or furnace is upflow. In other words air is drawn through the bottom of the unit(the return) which is unconditioned air and blown out through the top of the unit(the supply), which is conditioned air.
Why loop seal provided in cfbc boiler?
loop seal is provided to stop the material from furnace to return leg back.It works with the help of diffrential pressure.There is the difference in the pressure of air beteen furnace and return leg.
How do you change an AC filter?
the filter is easy to change. it should be in one or two places, the return grill which will be in a hallway near the thermostat. this is the most common location if your furnace is located someplace not easily gotten to. the return grill should have a small latch(es) or screws/nuts keeping it closed, the grill is hinged to allow it to swing open for easy filter changes. simply remove old filter check the size that's written on it and replace with same size assuming it fit right. lil trick if it's high up turn on the fan this will hold the filter when you have your hands full balancing on a ladder/chair. replace it every 2 to 3 months depending how it looks. If your furnace is in the garage or a closet and you only have a flat return grill the filter will be in the bottom of the furnace, just open the bottom door and you will see it, pull it out and replace. the filter needs to have some kind of support in it, checkerboarded thread at least to keep it from being sucked into the blower motor when it starts collecting dust. they only cost a couple of bucks at walmart or a do it yourself store. pleated ones have more surface area and work great. hope i helped. viking40
