Richard

What experiences do you folks have with greenhouse irrigation water heaters? I have some familiarity with the Paloma inline gas heaters and Bosch point-of-use electric heaters. I am interested in one for my propagation table that would heat the water to about 73 F (23 C). Thanks!

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sandy0225

I don't use one in my greenhouse. I instead try to time my watering carefully so that the pots will warm back up in the sun after watering with cool water. If you're not going to be using the water for circulation to heat your propagation frame, you'd probably be able to get by with carrying water from your house or installing a hot water outlet on an accessable place to hook a hose up to. An enclosed frame like that shouldn't need a whole lot of water (vs the cost of the heater.) unless you need a tax write off....

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Richard

When I propagate hardwood cuttings I will use propagation under mist. Our humidity here is relatively low and so the mist sprayers come on frequently. If the water temperature is significantly lower than the target temperature of the rooting media, my heating cables will come on more often than desired. Hence, I would like to have the water source for my mist sprayers warmed to the propagation temperature -- about 73 F.

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