Answering some questions about our heat pump.
The reaction to our heat pump has been interesting.
Many questions have been about how much more it is costing us? It’s not, actually, we’re saving about £3 a day on heating our water compared to the gas boiled at today’s prices.
It’s summer, and for the past eight days, for 7kWh of energy we’ve bought we have had 37.5kWh of “heat energy” out. That means the pump is currently 537% efficient.
It’s not going to be that great over the winter, but should still return more than 300% efficiency compared to the best gas boiler, which returns 80% efficiency – for every 1kWh most people get 0.8kWh of heat. Electricity is more expensive than gas, at that rate, and the fact we have solar power means we’re not paying for the electricity… Hard to make your own natural gas.
How’s having cold water? Actually, the water is pretty hot and plentiful – the bath has a mixer and I have HAD to turn it down so I don’t need to add cold water at the end of the run! With larger pipes, the water pressure is better too.
Is it noisy? No, it’s silent, significantly quieter than the gas boiler. What is really lovely, the exhaust at the moment is really chilled. It’s lovely.
So far, so good. We’re happy bunnies.
Posted: August 8th, 2024 under 42, Driving off the grid.