Sort of related: I picked up a GE Geospring heat pump water heater this weekend for half price from sears. They told me there's a new model coming out. $600 out the door and it should pay back in ~2 years compared to the regular electric heater I have now.
I need to relocate it as the current one is in a tiny closet and these need airflow. That's my next house project - plumbing and wiring for the new heater. 220V so still no kill-a-watt to read it.
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