New Construction want 2 use A/C Ducts 4 Air Exchange Avoid mini splits Possible?


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Old 11-09-13, 06:12 PM
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New Construction want 2 use A/C Ducts 4 Air Exchange Avoid mini splits Possible?

3,200 square foot home with radiant heat. Main living on 1 level, guest bedrooms on lower walk out level. 2x6 construction, very tight. Realize we need to size the ducts for A/C which will be used 2 months out of the year in Maine. Does anyone have a solution that uses the same venting system? Do we need double the duct work and the cost? We are grateful to hear all opinions. Thank you.
 
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Old 11-09-13, 11:49 PM
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Welcome to the forums.

It is not very clear what you are trying to do. Since it's new construction there are no ducts installed yet. Yet you say.... "Does anyone have a solution that uses the same venting system?"

Same venting system as what ?
 
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Old 11-10-13, 04:21 AM
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Glad I'm not the only one confused.
If your installing a central air system I would think you could just switch it to fan to circulate the air if you do not what to run the A/C.
Or install a whole house fan and open up the windows.
 
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Old 11-10-13, 04:40 AM
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Sorry for the confusion. Tight house requires an air exchange system bringing in fresh air several times a day. We would like to super size the ducts in the house which are costing us 10K, as well as use the same vent in each room for fresh air exchange and A/C in the summer. We are looking for a way of hooking up both systems to the same ducts and vents. Thx for your patience.
 
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Old 11-10-13, 04:54 AM
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Do you know what a whole house fan is?
I'd bet you would end up almost never even having to run the A/C in ME with one and a whole lot cheaper to run.
$10,000 just to run duct? Must be one big house.
 
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Old 11-10-13, 02:02 PM
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Yes, I am familiar with whole house fans. We have friends in Portland Maine who said their whole house fan was useless in July when we had 4 days in a row over 100 degrees, followed by a week of over 90. We have thick blood up here, can't take the heat.

I am wondering if a Hydro Air system which we would only use for A/C could be modified to do the 6 times a day air exchange. This is not a well known technology in our part of Maine.
 
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Old 11-10-13, 05:32 PM
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An HRV can be used on any system.
 
 

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