RX 12 insert wood boiler stove

The RX12 can tick over giving out as little as 3 kW, but turn it up and you have a powerful little stove capable of producing 9 kW to water and 3 kW to the room, enough to run all the heating of a small house. 

The boiler goes right around the firebox which is lined with firebrick to ensure a clean burn, then there are heat exchanger tubes running across the top of the fire chamber to make sure that every last bit of available heat is caught. Both the primary and secondary air supply are controllable, so that you can set the fire at the level you want it.