I’ve made a reasonable effort to be as conscientious as possible, not only to the environment, but also to my neighbours. Bought a modern very efficient stove (expensive, but bought half price on ebay, ex shop demo) small 4.3kw (so always able to run at ramming speed for the size of rooms, lounge door still needs to be left open tho as Defra exempt, it can’t be shut down much) and found a local tree surgeon who only sells his waste wood properly seasoned but cheap(ish). I did buy a fancy load of logs for my indoor wood stores, for decoration, but mostly burn the seasoned tree surgeon waste (stored outside). Usually start the fire with kindling and one fancy log to quickly get up to temp, then use tree surgeon’s cheaper waste logs, seems to be the best approach for achieving virtually zero smoke.