Comment by simonbarker87

If the Vapor aspect works well then this might make air source heat pumps tenable in cold countries. The current crop here in the UK are costing home owners a fortune as the 3-4 kw multiplier drops to 1 below 0degC or so and hearing becomes horrifically expensive. I know a chap who was paying £1,200 a month to hear is home at the worst of this winters cold and the energy price jumps we have here.