On 2021-06-06 12:36, Dan Penoff via Mercedes wrote:
I would research this heavily, as one of the things I saw when I was looking into them was complaints from people in northern climes who mistakenly installed these in unheated areas of the house that ultimately discovered they were horribly inefficient if the ambient air temps dropped below a certain point.
Inefficient or ineffective? I can't imagine them ever being less efficient than a plain electric water heater. One might think that they would turn into electric water heaters if the basement got too cold, and produce little heat just above the switchover point.
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