The race is on

When I contemplated having a podcast, this was the first idea I had for busting some myths about owning a heat pump.It's not your usual discussion on efficiency. Inspired by the legendary Murray Walker, this looks at a dilemma faced by many every day and how our heat pump not only was up to the task in hand, but used less energy too.NB - our hot water tank is a 320 litre one, so the pump is doing a bit more than I estimated in the podcast.Our heat pump is a Visessman Vitocal not Vitodens! Though I did get the coefficient of performance (COP), aka seasonal performance factor, right: 4.2 was our value last year and the year before. If you want to see our numbers, in full, please see Number crunching part 2.