Hi all, I was hoping to seek some advice, my property is F rated on the EPC and I need to get the rating up to at least an E, the only way to do this is cavity wall insulation OR putting in a new boiler. The current setup is an old electric boiler, theres no gas supply to the property so it will cost appro £800 to connect it to the mains, the install gas boiler and cooker. OR Buy a new electric boiler ideally one that is able to heat water on demand like a combi boiler. What do you guys think I should go with 1. New modern electric boiler 2. Gas boiler Thanks