I think it may be psychological, with our old LPG Boiler, I had the Radiator set to shut down when the Table Thermostat reached 20/21*. Nice and comfy....now the same Thermostat is showing same with the Heat pump but I feel cold...and it takes time to get there. I don't think we need to worry too much about the Winter as down here(Penzance), it seldom falls below freezing, 2023 February was the coldest month and it averaged 8*. Think I may install an additional small Rad....to see if the room heats quicker.......Thank you all...