Awful waste of a lot of money We had an eco Dan heat pump fitted last summer. It was an expensive process but I used some money l’d recently inherited thinking it would be an investment and save me money in the future. Sadly it has cost me a fortune ever since due to a faulty system. We have no control over the heating system which will come on full blast even on the hottest of days. The pump runs even when the heating and hot water is turned off. Our plumber said it was a fault with the ecodan so we paid almost £300 for a Mitsubishi engineer to look at it. They said it was wired wrong yet the problem persists. Mitsubishi wants us to pay again for an engineer to come out despite them not resolving the problem previously. I have called 3 times in the past week and emailed and no one is listening. Our electricity bills have gone through the roof. My suggestion is don’t go near their products. It has caused endless stress and cost an absolute fortune