Propane (R-290) for heat pumps?

[jeff5may]

Originally Posted by Xringer

A guy used Propane with an R410A split system, without any mods. Think he used 20% less charge weight.?.
But, he said the cooling was really good and the power use was way down..
I think his YouTube video of the hack is gone now..

More than a few of those people are members here. Some are more active than others. Just because they don't post all the time doesn't mean that they aren't checking in once in a while.

Thanks to you, ac hacker, the ecomodder crew and a select few others, this forum has become a magnet for people who want to (or do) know more. The tinkering and "can do" attitudes of senior members is what trapped me here. The fact that just the threads you started have been viewed over a quarter million times is testimony that these discussions aren't boring or useless. This stuff is very practical and valuable in the right hands.