Assessment to install a heat pump
I had Octopus assess my house for a heat pump. I was told the heat loss would be too great and that they could not help me (it's a small/med Victorian terrace with some energy efficiency improvements), and that I'd need a much bigger pump than they supply. It seems the system needed is pretty massive with two bulky units in the garden. They seemed to use a formulaic method to assess the house, which did not take into account existing or planned energy efficiency improvements. It would have been nice at least to receive a copy of their calculations. I'm told many / most heat pump installers over specify the size heat pump they need to install, to protect against potential claims of cold houses (which Octopus offer a guarantee against). I can understand this, but a more detailed discussion of heat loss, and size of installation would be useful. This has been a bit off-putting for someone who is keen to get a heat pump!
Reply from Octopus Energy