We have a Heritage Range cooker-it's very clever, operates heating,water and obviously cooking. It runs on diesel and carosine, but there are other alternatives! we are considering increasing battery power by adding another battery, 130amp- as the heritage is controlled by a clever 'gismo' that automatically trips-in to maintain optimun temperature-although you can set it to a manual configuration. Absolutely fab in a boat, comes in 2 sizes and several colours and to date: uses not a lot of fuel!
What is the manual configuration you speak of?
I have worked out it should use 1.14 litres of diesel per hour but after an hour of heating up to 200 the oven will cool down every 15 minutes or so and the burner will prob come on again for a few minutes after that time cycling roughly like this.
Always have a multifuel burner on board with a backboiler this is a must have for when the range needs servicing or when you run out of diesel and IS nicer. All houses with ranges I am certain have a stove as well! (tho i could be wrong)
I will emphasise just how helpful those guys at Heritage are. I have learnt how to replace the burner nozzle and adjust the electrodes next to them. I am going to learn gasket replacement and removal of hob for clean out, also the bottom of the oven is removable for a hoover or wipe clean if necessary with a wide flat head screwdriver. It is worth knowing because their time is limited and I think they welcome it if you are confident however a full service which involves adjusting the pump pressure... a critical factor, is not something I can yet do or perhaps would be able to do.
If it fits then a Compact would be advantageous over an UNO.