Boot

Just a note but surprised you found a back boiler stove being advertised - as of 2022 all stoves must now meet stringent particulate matter emission levels - as boiler stoves reduce the burn temperature / increase particulate matter they are in effect now band in the uk and it is illegal to fit one! As a stove fitter I'm pretty sure on this but happy to be corrected if I'm wrong Boot

Alternatively, carefully break out the brick at the back of the fire, drop a 6" flexible liner (best use 904 grade) attach x 2 135 degree bends and a straight length protruding at right height to connect to back of your choice of stove. Brick up around protruding flue and fit new extended hearth. Fit stove. If the wall is a gable end make sure you back fill with Leca to the top - if you use vermiculite it will compact over distance / time. Not insulating a gable end will cause draw issues relating to a cold chimney. If its an internal chimney 3-4 bags of vermiculite would be more than enough. Cheapest way with least disruption!

15 years a stove installer - as somebody has stated already there's a lot of variables but yup the stove is too big for the chamber, heat will be lost into the walls and radiating up through the plate. This will not be resolved by opening the vents to full as this will just burn the wood quicker / suck the heat out faster. As a process of elimination first fit the stove with a rear flue (T-pipe) thus pushing the stove roughly 200mm into the room (as long as hearth to front still meets building regs). This usually resolves the issue. Secondly, if you can get access to the chimney via the register-plate, and its not got any back-fill, ram it with rock wool (A1 fire rating only) thus reducing any radiated heat being lost up the chimney. The stove is a cracker and should be fine assuming baffle plate still there - given they are built like tank armour. From my experience the T-pipe usually resolves the issue. Boot

Thanks guys, will keep it dry (covered) and possibly tag it to keep track. Boot

Howdy, New to the site and chainsaw milling. Air drying Oak, Beach, Scots pine and Ash. Should I be applying an insecticide to prevent woodworm etc? Boot