jbm1967 asks an interesting question on the main site about heating:
I live in a chapel conversion built in late 18th century. It has a 20ft high ceiling in main room and this room is 36 ft x 36ft. I installed underfloor heating in this main room and it works well (can get room to about 21 c in winter previous year with rads 18.5c tops). All other rooms have conventional rads and are all warm enough. The problem I have is with oil consumption. I use 1200 ltrs a month from approx Oct - May. Yes seriously 1200 ltrs a month and at £0.60 a ltr I’ll soon be going bankrupt. I have insulated under the ufh and in the loft but there is nothing I can do to the walls (grade 2 listed building with lath and plaster walls) I cannot decide if air source pumps is the way to go or something like a wood pellet stove. I need about 33kw (and due to heat loss running this almost constant) Anyone got any ideas how I can save money in the long term?