Viewing post #2404467 by Lienpainters2

BruceM2 said:I just LOVED your pictures and GH heating project, Ryan.

I think the on demand type gas heaters (which have gotten fairly affordable these days) are well suited; their usual durability problems are all associated with open systems and water minerals; for a closed system like yours that's a non-issue and it should perform well for a long time without descaling.

Because of the HUGE losses at night from the glazing, you may have issues air temp issues, (more likely just with gas consumption) though at least you have a fabulous lack of loss to the earth, which by reported data accounts for 1/3-1/2 of the thermal loss besides the upward/outward loss through the glazing for typical GH's.

I'd love to see you tackle the glazing loss via some method(s) such as insulated panels or soap bubbles. It's a difficult task that few have tackled. You clearly have the right stuff for it.

I'm a retired EE/CS guy, and appreciate the technical side of things more than most. I say BRAVO to you and your GH project!

Thank you Bruce!
I feel theres a unspoken connection between individuals who have an affinity for something and those are the connections we don't just learn from we actually prosper and thrive on.
My biggest battle right now is heatloss going up and out because even though double wall insulated with plenty of circulation the R value is just not there.. so even though the soil reads 60 degrees at the floor the air could be as low as 35 degrees. I have no auxiliary heat so my plan is to buy a water to air heat exchanger and blower to heat the air itself. But with that said right now my soil temp 3 ft down is 91 degrees which is required to hold 60 degree top soil temp.