Not much at all --- I have configured a timer so it comes on at 0430 to get an hour boost of cheap electricity. I might increase that now we are heading into the negatives. I need to spend a minute analysing the impact though to see if it is worth it.... so what have running costs been on days you have used it as an office ... do you precondition.? (ie. on cheap octopus energy .. syncing it with Igo maybe even better)
e:sticking relays .. I'd be opening canister to see whether contacts are pitted/blackened - maybe clean with some wet&dry as I did for espresso machine)
n.b. January's £5.379 was an accident; I forgot to turn it off lol.
Week days where it is low is where I am in the office. It costs me about £60 total (train/tube/lunch) so this is way more cost effective.
Here is December 9th energy consumption (real time) and temperature:
So it comes on at 4:30am and gains ~5 degrees; shuts off till 07:30am where it puts in a shift to get it to ~20. It then sips the juice to maintain 20 before I switch it off when I leave the room (6pm in this instance).
