Yes this is me talking about being ‘green’
We’ve been looking at purchasing an old stone/slate cottage. At the moment the heating is radiators via an old oil fired Aga. The current heating and hot water system is very old, e.g. no room stat. or even tank stat., so it will all need replacing what ever we do: A pressurised tank and new boiler system for a start.
Plan a) was compete air-source and then an lpg Rayburn. Turns out you can’t get an lpg cooking only Rayburn/Aga. Plus limitations on heating. Now I’m looking at plan b) which is a hybrid system. This means primary heating/water is via an oil Rayburn (oil because there’s a newish plastic tank there and installing lpg means ripping it all out and oil is generally cheaper as well) but air-source as a complimentary system.
Which ever system underfloor heating is out. We’re talking low ceilings, concrete floor downstairs. We would therefore have to stick with the existing wet radiator setup. I was doing some reading and it looks like using radiators is an option with a hybrid setup but you need to use alluminium rads. and double the rating, e.g. if the radiator was a single then put a double (P+ or K2), maybe even add more radiators if that’s possible.
Really I was after any comments or words of sage advice. Has anyone else gone down the air-source road? Any advice ref. costs, maintenance, ongoing costs, installation, sensible plan?