Recent content by technicalm

Hi, I'm a heating engineer. part 1: I typically install 300 litre to 100litres stores of hot water (to be extracted at 40deg c for low temp heating). I understand that the specific heat capacity of paraffin wax is something like ten times that of water. So can I play around with a...

wow. quite a lot from thin air! So that's where the increase in energy comes from in a heat pump, it may only consume 1kw of electricity but mysteriously gives out 3 or 4. thanks.

Hey all. Our heating equipment draws air through it at 5000m^3 per hour. Lets say it's 20degC outside. The fan pulls the air through and the exhaust air is 6deg cooler. So we have scavenged that 6degC for our use. Excellent. So let's pretend there are not any system...