Ecodan uses standard central heating controls so a 2 channel timeclock and a room termostat are all the end user needs as an interface. If the cylinder is sized for a typical days hot water usage then the 1 hour boost on the 2 channel programmer will not need to be used frequently.

ASHPs can work well in northern scotland if the system is correctly designed and installed. The same applies to a GSHP (or any other form of heating), but if you have issues with one of these it can be even more difficult to rectify.