During the winter I put polystyrene insulation sheets against the bottom sections of the greenhouse wall and then bubble wrap the rest. This dramitically reduces the amount of heating I have to do which is good for my pocket. I still have a heater but it is only needed in the deepest colds as I only want to keep mine frost free - I feel quite strongly that we're missing the point if we're fooling plants by having our greenhouses hot over winter and it's a wanton waste of resources. I took my insulation off a few weeks ago and reinstated my auto vents last weekend. Will install shading later in the season.
By the way, if you're careful and dry the bubble wrap out then it will last a few years and the polystyrene sheets should last forever.
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Some of us live in the past, always talking about back then. Some of us live in the future, always planning what we are going to do. And, then there are those, who neither look behind or ahead, but just enjoy the moment of right now.
Which one are you and is it how you want to be? |