Cold, Cold Greenhouse

Learned why the greenhouse was so cold when the outside temps reached 26 degrees: the ground fault receptacles went bad and there was no electricity past the fuse box. The little back-up electric heater did not come on. The pump did not circulate the water through the heat-sink barrels and the black hoses that collect heat from daytime sunlight.

When everything works as planned, the temperature will not drop to freezing. There is usually a ten-degree spread when outside temps are below freezing.

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1 Comment

  1. Rose

     /  January 28, 2008

    They make thermostats with remote alarms. It would be perfect for alerting you in the house when the temps drop below a pre-set limit. I hope you didn’t loose many plants.

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