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newhomeneeded

08:06PM | 10/17/02
Member Since: 10/16/02
10 lifetime posts
Bvhvac
We are planning to add a second story to our 1100 sq ft ranch house (adding another 1100) - in North Jersey. We currently have forced hot air heat (120000 btu furnace) and 3 ton split central air (coil in the same air handler as heat)
I am looking for the most cost-effective HVAC solution to handle the second level. I have heard from a few folks about a combined heat/AC unit that can be mounted in the attic. Does anyone have some good info about this type of unit? or anyone experienced w/ a similar scenario? I would greatly appreciate the advice!


[This message has been edited by newhomeneeded (edited October 18, 2002).]

[This message has been edited by newhomeneeded (edited October 18, 2002).]

newhomeneeded

05:59AM | 10/18/02
Member Since: 10/16/02
10 lifetime posts
Hi -
I understand that both units are large enough to heat the space and the new space. The house is not very well insulated at the moment, but neither unit works very hard at any time. I really don't know why the previous owner put such large units in a house this size.

The question is this - Would it be best if we had new heating ductwork installed in the house to do both floors (also need to zone it) and put a separate air-handler in the attic for the existing AC unit, or just leave everything downstairs in place and install a package unit upstairs. As it stands, I am really not that happy with the AC being tied into the heat ducts, since only my feet and the basement seem to stay cool in the summer. Thanks in advance

newhomeneeded

09:42AM | 10/18/02
Member Since: 10/16/02
10 lifetime posts
Sorry if I don't fully understand. Would it be wise to replace the furnace with radiant heat (baseboard) and install an air handler for the ac in the attic? This is my preference actually (I don't really care for forced air heat) and I would like to avoid adding another AC unit.

Just a note: Also what I meant by the furnace or AC system working too hard, was the neither never seems to run for "extended" periods. My previous house had an undersized furnace that never kept the house warm. It would run continuously through the night and barely maintain a comfortable temperature. I am not an expert on HVAC, that's why I'm here asking questions. Thanks for the help so far!

newhomeneeded

10:19AM | 10/18/02
Member Since: 10/16/02
10 lifetime posts
Thanks - I appreciate your time and quick responses.
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