4 ms·
> 1:10 or 1:15 electric:heat energy ratios Under what circumstances? I've seen higher-end units that do maybe 1:5 in ideal conditions (heating to 68F when the
by orthecreedence 7mo ago
> 1:10 or 1:15 electric:heat energy ratios
Under what circumstances? I've seen higher-end units that do maybe 1:5 in ideal conditions (heating to 68F when the ambient temp is 55F), but never seen units that do 1:10 or 1:15. This was about 2-3 years ago I did this research. Have things improved that drastically in the last few years?
- eldaisfish 7mo agothings have not improved. Too many folks here do not understand or care to appreciate the constraints of the real world. Heat pumps are excellent and relatively cheap but have limitations. One of the biggest limitations is that a heat pump's efficiency drops as ambient temperature drops. This is the worst possible situation for heating as the conditions when the risks of losing heat are the highest, are precisely the conditions when these devices are least efficient.
- timbit42 7mo agoAs long as they remain more efficient than resistive heaters down to the lowest temperatures you experience, it's a win. Heat pump efficiency is still improving. You can get heat pumps that can handle down to -35°C now with even better ones in the works.
- eldaisfish 7mo agoI'm not questioning the merit of heat pumps. I should know because i have two in Ontario, Canada, one rated to -35 C and the other rated to - 25 C. What i remain opposed to is this persistent idea that heat pumps work in all situations, for all people and for all time. They do not, and heat pumps create a unique set of problems that we might not be fully prepared for.