December cost me £110, that’s with the heating on 24/7, yes it was a bit milder towards the end but it’s a no brainer to us, the heating just keeps topping itself up, the last couple of nights quite a bit due to it been Baltic outside and cost us £10! A small price to pay for been toasty. Loft insulation is easy pal and very cheap to yourself, we have a big insulated curtain for the front door, I’ve put draught excluders on doors with gaps on the bottoms, you can get a sticky foam for around doors as well to seal properly, check around windows for gaps in the seals and reseal it’s a piece of piss.