It is installed and working, but not efficiently. I few weeks ago when the heater was installed using the original resistance heater I collected whr data for about a week. After one day it appears that it now uses about 90% of that. Too short of time to get precise. It has about 2.5 oz of propane and I think it would be better with a little more charge. I know I need to collect temp and pressure data before I can ask for advice on charge.
I've wired it so I can swap some connectors around and easily change from heat pump to resistance heater so I can establish a test procedure that would compare different operating conditions. It all takes time and I will eventually get to it.
For now I wanted to show where I was at. And repeat again that my objective is not a better water heater, but to learn some new tricks.
