Submitted by thread100 t3_10v6hxv in newhampshire
zeeke42 t1_j7pjx83 wrote
Reply to comment by redsoxpanama in Heat Pumps During Recent Cold Weather by thread100
Yes, I have the "Kumo Station" on my Mitsubishi hyper heat system. It can control up to 4 zones of backup heat. You set which heat pump zones are backed by which backup zones. Then you set two temps. Above temp A, the backup never runs. Between A and B, heat pump runs first. If it fails to hit set point for the configured delay time, it adds the backup heat. Below temp B, it goes straight to backup heat.
The system works great. I first installed it in my Massachusetts house, because you got huge rebate. It went from $400/ton to $1600/ton by adding the integrated control system. Rebate change more than paid for it. The heat companies charge a bunch for it and some of them don't understand it. When we put the mini-splits in the NH house, I just bought the kumo station and installed it myself.
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