With a trendy eco-green-engery-supplier: i.e. I’ve not hunted around for the cheapest
1970 mid terrace 3 bed house that’s mostly windows!! (3.2m x 2m in living room combined with the front door is one whole wall with the excepetion of a column between the two!)
South Coastal climate
I’m LED lamped all over the place, predominantly single bulb in each room with exception of bathroom and kitchen i.e. not-multi-kw per room downlighters,
45cm loft insulation,
A-grade double glazing.
During winter heating House maintained at 18.5-19.5C monitored with thermometers and not the heating thermostat which actually reads 15.5deg! Heatin is timed off when we’re at work and also midnight-6am
Gravity fed gas boiler on open system (is that correct terminology, i.e not combi or pressurised)
Average over the year £65 per month all in, worst bill last winter was about £105 in a month.
BUT – I pay by quarterly billing, I don’t like to have a monthly DD as you usually end up giving the utility company an interest free loan for the majority of the year by being in credit with them!
EDIT probably spend £2 a month on IKEA Glimmer 100 packs of nightlight candles. 5 or 6 or 7 on a bit of stone on a coffee table together kind of give a subliminial cozy fire effect.