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Old 11-21-2010, 10:55 AM   #1
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Self install retrofit HRV?


I am approaching need for an HRV as I begin insulating the basement. It will become fairly airtight as I am using rigid foam against the concrete. Prior to starting ACH has dropped to approx 3.5 with the basement uninsulated but rim joist sealed and air sealing retrofits upstairs.

I need some pro installation opinions please

Can I get good results by tapping in to my existing old furnace ducting in the basement?

How far should the intake be away from my HE furnace intake/exhaust. I am assuming I will be cutting through the RIM joist.

Any opinions on a Lifebreath #155 or #250 system versus a Venmar or others for a 2000 ft 2 story plus 1000 ft finished basement?

Will an HRV connect into my Carrier infinity T stat?

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Old 11-21-2010, 11:25 AM   #2
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Self install retrofit HRV?


Google Lifebreath. They have install manuals there. I would stay 3 feet away from the furnace exhaust. Also need to make sure the HRV intakes don't get blocked with snow or a drift recircs the exhaust back into it. IMO Lifebreath is far better than the other guys. They used to be better. Lifebreath makes the Lennox healthy climate series and Lennox never goes with cheap versions of anything. Too much reputation/advertising at stake. I have a Lifebreath 155 MAX.

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Last edited by yuri; 11-21-2010 at 11:28 AM.
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Old 11-21-2010, 02:17 PM   #3
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Self install retrofit HRV?


You can hook up an HRV to a Carrier Infinity t stat, but you will also need a network interface module (NIM) controller to accomplish this, and they aren't cheap.
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Old 11-25-2010, 06:20 AM   #4
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Self install retrofit HRV?


I have taken the plunge. Located a homeowner with a new in box Lifebreath 155Max, never installed. Any tricks of the trade I should know Yuri? This unit came with the standard controller on board. No other materials except the manual
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Old 11-25-2010, 06:37 AM   #5
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Self install retrofit HRV?


Follow the manual, pretty good info there. I have not seen your furnace yet to know the wiring etc. Now Lennox that I know.
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Last edited by yuri; 11-25-2010 at 06:39 AM.
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