moontime, I need some sunshine. I realy like the article, JOSEPH ORR'S FABULOUS "MUD HEAT-STORAGE" SOLAR GREENHOUSE. I'm sirously thinking about giving it a wirl. It's to bad the article doesn't have more detail. 6ft x 30 roof collector? Is it like a solar water heater. Heating air instead of water. How much soil between the loops of pipe. Ect Ect.......... Eric Here is a link that might be useful: JOSEPH ORR'S FABULOUS

I have 2 wood frame greenhouses. The smallest one is 14' x 18' and the larger one is 23' x 26'. I also have two 16' x 96' hoop houses. The roof and lower sides are covered with corrigated fiberglass. They both have storm windows covering the entire center of the sidewalls. I use an attic type fan with a thermostat and louvers to ventilate. I usually wrap the outside in 6 mil plastic during the winter and the fan turns on automatically if the temp gets to high. They are heated with 30,000 BTU ventless propane heaters. We recently moved to a new location and I definately will be using the double wall polycarbonate to cover the roof and sidewalls on the new greenhouses. I still plan to have windows that open. I have seen advertisements for a double wall polycarbonate which comes in rolls that can be used on hoop houses etc. I plan to check this product out for covering the tops of the hoophouses. There are images of all of the buildings on my web site (Link Below)under the Greenhouse menu. The larger one has a design flaw - the roof is to flat and condensation drips from the roof about half way down instead of flowing to the sidewall gutter. Here is a link that might be useful: The Flower Lady's Garden

"I wonder who the principles are with the garden and or nursery?color>" The owner's name is Holub (which translates to Pidgeon). That's easy to tell, even if you don't read Czech: several of their original WBs were given the cultivar name Holub, as you can see in the photo captions. Specifically, according to this excerpt from the web site, "V soucastnosti ji máme vyÂlechteno kolem 70 námi nalezených carovejníkù, z nich bezesporu nejznámejÂí je Thuja Occidentalis Malonyana Holub.color>" ...which translates to "currently we have about 70 WBs in cultivation that were discovered by us, from which the undisputed best known is Thuja Occidentalis Malonyana Holub".

Looks like a nice site, lots of choices: anybody know if it is a reputable dealer?