Op, if it helps, to summarise
If you wish a wood burner, have a hetas engineer install an eco design stove, which has a defra exemption and exceeeds thr clean air strategy requirements
Use only seasoned wood or smokeless fuel, and you then mitigate any health risks
Cost to buy and install is very expensive, so pay back will take time
Do not diy install as a previous poster suggested, it needs to be notified to building regs when installed, and if not installed safely there is a chance house insurance will not pay out in the event of fire. Fire risk is mitigated if installed correctly Ie lined chimney etc and chimneys swept regularly,
Cleaning is not cumbersome or hard, it’s just a drawer you pull out and tip into a black sack or whatever, it takes thirty seconds, it can also be used in thr garden.
Seasoned wood is expensive, and you need signficant outside storage to keep the wood dry, as you need to bulk buy to keep costs down. Although even then it is still expensive, just not as expensive as buying small bags from the supermarket or service station
You should never burn wet scavenged wood, old pallets that have been treated, old furniture etc if you can avoid it, it does cause a health risk, plus outside pollution and it tars up the chimney giving risk to a chimney fire.
Woodburining stoves are a highly efficient and safe method of heating your home and they look lovely, but only if done correctly otherwise it’s a risk, and it is not cheap, unless self sufficient in wood.