@Herman30 : There's different versions of a "Range."
Fundamentally, it's a directly fueled closed appliance that is focused on cooking but will also heat a room. Typically it runs constantly- it will be capable of runnign overnight. In some cases the range also runs a central heating system and provides hot water. They will all have an oven and a hotplate for cooking as a minimum, and may also have extra ovens and/or a warming oven.
Originally, ranges ran on solid fuel. The Rayburn, Aga and Esse are types/brands of range. For a while, some ranges- mainly Agas- were converted to oil firing or electricity (Agas are bigger than Rayburns, so more Rayburns were removed and replaced with newer oil boilers rather than being converted).
There is a trend to move back to solid fuel firing. There's also a market in the UK in refurbishing old solid fuel ranges- typically Aga/Rayburn. There was (is?) a level of status in some brands; Aga were seen as "posh" and Rayburn the working class relative, but truly, the Rayburns are decent bits of kit.
Whether you choose Aga, Rayburn or Esse depends on (1) size of range needed and (2) fuel available. Agas are bigger and can be coal fired but still mostly oil fired. Rayburns are typically oil or coal fired (probably mostly coal fired), but a wood burning grate is available. Esses are exclusively wood fired. (Coal fired ranges run best on a decent grade of smokeless fuel which can be difficult to get in many parts of UK).
Coal fired ranges seem to be very much a UK thing, whereas much of Europe continued to use wood for cooking/heating for longer, and developed "masonry stoves" (kachelofen) to get the most out of wood.
I did consider a masonry stove of the new place, but costs were way out my budget for "certified" stoves and for anything else there was the challenge of complying with UK Building Regs..... culturally, the UK regulatory system struggles to understand European-style wood burning appliances.
GC