[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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