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Greenhouse heater
I'm looking for an electric greenhouse heater, predominantly for frost
protection over winter. There are obviously lots available but most that I've seen have only a vague setting for frost protection - it's usually just a rather uncertain position on a continuously variable control knob. And just a tiny adjustment either up or down seems to make a major difference to when the heater comes on. There's obviously a temptation to set it on the high side 'just to be safe' but the result inevitably is an expensive waste of electric power. What I'd like to find is a model that has a more accurate temperature calibration, ideally one that has eg a positive click position just for frost protection or alternatively one that has an accurate temperature scale marked clearly in steps of eg 1-2 degrees so that there is little ambiguity about exactly what temperature it should come on at. Anyone have any receommendation for a suitable make/model please, preferably without spending a fortune. The greenhouse is 8x6 so the power output doesn't need to be enormous. TIA John Dann |
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