Probably both. I probably need to do the math that AC_Hacker had suggested as to the COP and raw btu output of the unit as the temps drop off. Can someone lead me in the right direction here?
I can rig a data logger to the unit to get good data. I have some arduino parts laying around.
Last year, I did some rough calculations using basic equipment such as:
Kill-a watt meter (before it died - I can probably resurrect it)
Digital handheld anemometer/thermometer (indoor discharge)
Digital indoor/outdoor thermometer (ambient vs. evap)
Analog alarm clock (cheap hour meter)
If I look hard enough, I might be able to find this old data, but it was basically done to verify superheat / temp split / dT, etc. and is not complete in any shape or form. I just ran a few numbers to make sure the monster wasn't just gobbling energy.
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