Adding AC to your home ❄️🏡

[@TheHVACDopeShow]

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[@brila1934]

Nice video. Looking for video that discusses adding AC to 2100 sq ft home with a furnace and only 1 return. Looking for discussion on challenging questions such as is duct work sufficient, adding returns, etc. Thanks.

[@TheHVACDopeShow]

Will definitely think of what this video would be called and put something together. This is a very common scenario and short answer is it’s usually feasible to be able to add at least one return, even if we’re just running to a room adjacent to the mechanical room. It won’t be ideal but sometimes running a return duct to the upstairs for example (from the basement for example) would just never work well anyway because it’s hard to get the system to pull from two floors up, but if you’re short on return air adding a 10” duct (or whatever’s needed) will make a huge difference in terms just allowing the system to breathe, preventing icing, and reducing wear and tear on the blower.

[@NickShoust]

So can any air handler just have a evaporator coil added ontop of it? Just seems weird that in the winter you can have hot air jusg pass through that evaporator coil.

[@bladecutter1]

That's the whole point in the way the evap coil is designed. Air is meant to pass through it. When refrigerant is passing through the coil, then it can change the temperature of the air that is passing through it, too. Otherwise, it has no effect on the air passing through it, which when its a furnace pushing hot air, means that the warmth gets into the house.

[@ddud4966]

Sure and if it's a heat pump, the indoor coil will become the condenser when it reverses the refrigerant flow for heating.

[@TheHVACDopeShow]

And most air handlers have a built in coil, whereas furnaces typically add a coil on top of the furnace… the other comments were right on the money 😁