Any air source experts on here in Ducati world as I’m toying with the idea of converting my home from heating oil of which I spend 8 to 10 thousand a year on heating and domestic hot water duties. I’ve read lots of horror stories about air source heat pumps and that they generally are shite in anything other than a new build property. My home is 183 years old with 3 ft thick solid walls so no cavity. The down stairs is underfloor heating and the upper 2 levels have radiators. the demand for hot water is met by a 210 litre pressurised cylinder. Now domestic is set at 60 degrees which Is standard to fight off legionaries disease but from what I’ve read air source heat pumps cannot supply this demand very well so uses an immersion booster element. Is it worth me converting or will I be totally disappointed and end up spending as much on electricity as I did heating fuel. mitsubishi ecodan seems to be the best system from what I’ve read. Cheers maybe @AirCon can Shed some light ?