Typical last mile battery runtime (protecting against power cuts)
saku at ytti.fi
Sun Feb 5 07:17:37 UTC 2023
On Sun, 5 Feb 2023 at 07:50, Chris Adams <cma at cmadams.net> wrote:
> Electric heat pumps are great for power efficiency until the temperature
> drops and they switch over to pure electric heat.
Here is graph from popular air heat pump Mitsubishi MSZ/MUZ 25
At -30c external, with +20c internal the units produce heat at
approximately 2x of the electric input.
But many other units do not perform that well even at -20c external.
And these units are premium priced. Modern R32 units consistently
outperform old R410A units.
More information about the NANOG