Running A/C into cold air intake.

Old 06-10-14, 10:31 PM
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Running A/C into cold air intake.

Hello all,

I have what might be a really dumb question but I'll ask anyways. I have Dependable Ninety-Two forced air furnace. In the spring and fall we turn on the cold air return and set it to cool the house but in the summer I just is not able to cool anything down. This is not a central air system just in case anyone was wondering.

My question is, is there any way of using my portable air conditioner in conjunction with the furnaces cold air return as kind of a DIY central air?

Here is what I was thinking. Take the portable A/C unit and direct the cold air into the cold air return vent, that way the cold air return is moving the already cold air through the houses vent's and helping to cool the whole place down instead of just one living area?

I don't kno9w if this would have an adverse effect on the furnace or anything so I'm coming to you guys for help.

Thank you in advance.
Old 06-11-14, 11:14 AM
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just turn the fan to on it will move the air around
Old 06-11-14, 01:22 PM
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Your house, depending on size will require a few tons to cooling capacity to cool it.
Your portable a/c is 8,000 or 10,000 BTU (I'm guessing here)
1 ton = 12,000 BTU's

Unless you've got some huge 30,000 BTU unit, it's not going to do much except use electricity.

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