Originally Posted by beenthere
With a Hydrokenetic as aux. Its 6 one way, half a dozen the other way. While you already paid to heat the water, if you don't use it, you still lose heat to the basement from the tank even though it has a 2"thick insulation around it.
A 1 to 2 degree drop in temp before bringing on the aux is ok, and so is using just the heat pump for recovery. It will save a little on the electric bill.
To be certain I am understanding your answer, are you saying a 2 degree offset is good? What do you recommend for a swing setting with a heat pump? I never measured the insulation on my storage tank but it seems thicker than 2". One thing for sure, when the water is heated to 170 degrees, the tank insulation is still cool to the touch. While I am certain the tank obviously loses heat eventually, I do know it will hold temp for an entire day if the Taco doesn't circulate it. I always go downstairs and check to see if the 10 kw heaters are kicked on. If not used they stay off for a long time.