A really interesting post about heat pumps. I find myself in a similar position with a Samsung pump with much less detailed telemetry than what Michael has. I suppose i should write something more detailed about it some time.
Friends, it’s been just over a year now since we had our 5 kW Vaillant Arotherm Plus heat pump installed.
The Good
In short, I love the heat pump: it is super quiet; uses low GWP propane as a working fluid; and can even heat water to 70 °C if I should ever desire.
And it is has worked well with a seasonal average COP (sCOP) of 3.6 in its first heating season during which the internal temperature of the house has been steady at ~21.5 °C 24/7. And we have lots of pleasantly hot hot water.
But, not everything is good. And this article is about the things that are seriously bad and the things that are downright ugly.
The Bad
There is no User Manual! There is lots of excellent engineering documentation and installation instructions, but I personally would appreciate a relatively short document that explained how…
View original post 1,062 more words
SellaTheChemist's Occasional Blog 