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Old 09-29-12, 02:13 PM   #36
opiesche
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Join Date: Jul 2012
Location: Rohnert Park, CA
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Quote:
Originally Posted by Mikesolar View Post
I didn't see this info anywhere but are you using O2 barriered tubing. If not, you will need a bronze pump, strainer, no steel fittings and the water heater should not be used for domestic water. I would look at the Vertex water heater as a heat source. It is condensing, reasonably priced and won't short cycle.

Oh, and we always use Beldon twisted pair wiring for sensors. It is the industrial standard.

Cheers
No, I'm not using O2 barrier tubing. It's a closed loop system and the water heater will be dedicated, and the manifold has an air eliminator at the end of the return side, so air that the tubing accumulates through expansion and subsequent contraction of the water should be removed by that to avoid corrosion. Do you figure I still need a non-ferrous pump and fittings?

I'll check out the Vertex water heater - the significantly higher efficiency would definitely make a condensing one more attractive, but they are usually so %$#^ expensive compared to regular ones :P

Thanks for the info!
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