Can I convert AC condenser to ground source?

stan_in_paNovember 26, 2009

We are working on an extreme fixer upper, 130 year old farm house. Installed a new oil furnace and 3 ton central air with a conventional condensing unit.

Can anyone point me in the right direction to obtain information and possibly dimensions to properly size a water to freon heat exchanger to replace the freon to air condenser on the present compressor unit?

I suppose that buying one already made is OK too. I'm wired up backwards so that my default inclination is to design and build my own. I can be talked out of it, but there is that satisfaction of knowing you built it with your own hands.

I have welding and machining capabilities. I'll let a professional HVAC tech handle removal and recharge of freon while the exchanger is being installed.

There are three wells on the property, so ground source water shouldn't be a problem.

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Don't have a clue, but the EcoRenovator blog has a series of posts about their project to do an entire ground source heat pump system from what looks like revamped fridge equipment.

I'll readily admit up front that I'm not the biggest fan of ground source heat pumps, but would it not gain you more to put all this effort into improving the thermal envelope (insulating, sealing, windows, ...)? Just a thought.


Here is a link that might be useful: DIY heat pump project

    Bookmark   December 3, 2009 at 11:03AM
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