This thing about using hot plastic bottles for the GH or tunnel surely they cant keep there heat all night. over the years i have tried some methods but this one i just would not try unless i am missing something.
I think if you could warp a old dovet around them or a old wool blanket `going to give it a try ;D
Quote from: claybasket on January 13, 2012, 19:30:58
I think if you could warp a old dovet around them or a old wool blanket `going to give it a try ;D
I take it that you have either a GH or pollytunel
We've lit a huge long burning candle and put a big terracotta plant pot over it.
I wouldn't say it heats our greenhouse but it seems to take the edge off cold nights.