Recommended temperature for a living roomWho in their right mind insists on 21 degrees indoors at this time of year? That's a decent Spring/Summer temperature outdoors shirley? Frankly if you or yours insist on your indoors being maintained at a balmy 21 degrees 24/7 throughout our (so far) moderate Autumn/Winter, then IMHO you deserve every last penny of your £3k energy bill
https://www.vaillant.co.uk/homeowne...erature is,be heated to specific temperatures.