Hey peeps, hope all is good. Question, Why is taking my house so long to heat. 4 degrees in 4 hours? Windows, doors all closed, eco turned off, nest stat set at 23 degrees. Started at 13 at 8pm now sitting at 17 degrees just after 12am. Brand new combi boiler. My old boiler was a systems boiler with a control box never took this long. Any suggestions?
