Heat pumps
Interesting developments abound!
We have been looking at different heating technology for Novy Mlyn. One option is a heat pump. This proven technology uses heat from a source such as underground, air or water and concentrates the heat, kind of like a fridge in reverse. For the energy you put into the system you should get about four times that out.
First of all I needed to calculate the amount of heat which would be needed for Novy Mlyn. After a bit of a trawl around the interweb I found this formula from Georgia State University. Using a ‘back of envelope’ measurement of the number of very cold days I would expect at Novy Mlyn, my estimate was a requirement for a 31kwh system. Read the rest of this entry »