These greenhouses were recently constructed to insulate the sap releasers and prevent ice building up inside, allowing optimal sap collection.

The electrical heat cable will work in tandem with the sun’s rays to keep it warm in the mornings before temperatures rise to above freezing. Usually the heat from our vacuum pump warms the releasers, but these two are in remote locations.

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Comments (2)

  1. Kathryn Zelinski says:

    Can you explain this idea? I’m very interested. We are trying to keep our releaser warm