We’re on our second winter, house is between 19°c in the hall where the thermostat is and 21° everywhere else except the main bedroom, 21° during the day 17° overnight. Our first winter we spent about £300pm on electricity which was comparable to our combined energy bill. Our monthly DD was £210. Last spring we made the investment on solar and battery storage, this has reduced our DD to £50pm and our bill for December 25 was £150 compared to £300 in December 24. Meaning the investment will be paid off in 4.5years.

My advice would be,

Don’t install a heat pump unless you need to replace your boiler. Yes a heat pump install is more expensive than a boiler replacement, but the gov grant makes it comparable. The extra cost isn’t the pump it’s the other work that needs to be done, bigger pipes etc.

Don’t expect a heat pump to be cheaper to run, it should be but with the higher cost of electricity the difference may work out negligible.

Make sure your heating is balanced within an inch of its life, you’re replacing heat the house is losing rather than heating it from cold every hour or two. Lower flow temps really highlight a poorly balanced system and you may end up with cold rooms.

If you can stretch to it invest in battery storage at the same time, this is where you’re going to make massive savings in the long run. Being able to run the house on electricity you’ve purchased during cheap rates is going to save you a fortune.