Greenhouse: New way to heat GH, 0 by rentman

rentman wrote:
I put all three barrels in the GH, filled with water, drilled a small hole in the top lid and put in a thermometer. Checking the temp for a week I found the water would raise and lower 10 to 14 degrees over a 24 hour period. One sunny day the GH 'Air temp' was almost 80 while the outside temp was 41, so I still have to watch it. The rabbits were really that heat.
I have all the glass, top and sides covered with two layers of bubble wrap.
Work on build some bottom heaters top start some seeds with.
This picture was taken 12-16-09, not as cold then, as it has been for the last two weeks.
Should have some new bunnies in a day or two, keeping the inside heat around 35 for them.