[Market-farming] Bench heating in greenhouse
Leigh Hauter
bullrunfarm at hughes.net
Fri Feb 8 15:23:13 EST 2008
I actually hooked up radiant floor heating in our house and I bought
a text book on how to do it. The maximum run of half inch, according
to the text, is 300 ft. it says after that the water has lost too
much heat to be effective. The water comes out of the boiler (you
don't need a wood gasification, they are just more efficient, you can
have any sort of a boiler, even one of those modern flash heat
affairs, before the wood boiler I used one of those, that's what the
commercial greenhouses do or the companies that sell heating backages
do. A lot of the companies will try to sell you there own table top
systems, that have their own piping and they are probably good, just
more expensive. I put my pex between a half and a whole foot
apart. My first couple of tables, the ones I put the seedlings on
first I have more pipe on. As the seeds come up I move them to the
cooler tables. I was thinking this year I would upgrade with a
commercial table top, but I'm not going to. Have better uses for the
money this year and what I have has worked fine.
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