On 01/10/2020 18:23, Andy Burns wrote:
Tim+ wrote:

I keep hearing folk extolling the virtues of heat-pumps but I was
under the
impression that gas was cheaper for equivalent output.

as ever "it varies", but poke some answers into

https://www.kensaheatpumps.com/heat-pump-costs/#cost-calc

The electricity costs for a heatpump will be about 85% of the cost for
mains gas,m but the installation costs are much higher.

And the most effective refridgerant gases have been made 'illegal'
(AFAIK) and you need to also need to factor in possibly higher
maintenance costs compared to a gas heating system.

Paul in Canada had quite a lot to say about this recently (heat pumps).