Until the Linky arrived I made do with a 6KW supply connection and despite having the water heater on 24/7 never had any problems. I upped to 9KW after the Linky was fitted as they do not have the same flexibility if you do exceed your maximum. The ‘spare’ bedrooms are heated using oil filled electric radiators which do seem to cost a fortune to run but they are used rarely, my visitors tend to prefer to come when it’s sunny and warm. My electricity bills, up to now, have been between €6 and €7 a day during the winter months and I use €350-400 worth of wood. I know some people who spend more heating their empty holiday homes.
The best upgrade I made was to buy a Jøtul wood-burner a few years ago and have it professionally installed. The properly insulated chimney and a bit more insulation in the kitchen chimney above the Aga made a huge difference.
