I've done a few threads on this, but thought I'd give an update in here.
We're in the process of buying a 1930's semi, complete with all 4 original fire places, and our plan is to go as 'off grid' as possible.
We're looking at a log burner with back boiler - Something like the Stovax Stockton 7HBi inset log burner, so we can keep the original fire place - feeding the thermal store upstairs in the loft.
The thermal store will have 4 heating inputs (eventually):
1 - Log burner with Back Boiler
2 - Solar Thermal (Evacuated Tube)
3 - Solar PV Powered Electric Immersion (Only activated by an Immersun device)
4 - Gas Boiler (Backup)
We'll probably use something like the Honeywell EvoHome device to give zoned Central Heating to minimise the C/H requirements, and have a towel rail radiator in the bathroom as a place to dump some of the excess hot water before venting it off. That then gives us nice dry towels all year round in the bathroom.
I'll either post in here, or do my own thread depending on the level of interest.