No problems Ken, I admit it would be good if there were a reliable sheap alternative but I haven't gome across one yet.

I did wonder about some of the plastic barrels that you can buy & paint them matt black & fill them with water & stand them in the greenhouse to act as a heat store, don;t know how effective they would be.

__________________
ntg

Never be afraid to try something new.
Remember that a lone amateur built the Ark.
A large group of professionals built the Titanic

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