I still think a questionnaire should be out there, for a person's carbon footprint. I mow and hand rake my yard. I do not use a mowing service, does that offset my footprint? I have neighbors that go to a gym, but don't push mow their lawn. What is the smart choice? It goes a lot further than a heating device
There are tons of these questionnaires out there. Problem is, they're all extremely biased and assign points or weighting towards ridiculous agendas. Electric cars are zero emissions for example, sure if you don't count the coal burning power plan that charges the batteries. Or the emissions to mine the lithium, build the car, etc.
I burn wood and call it carbon neutral because those trees have already absorbed the carbon from the air. I use logging waste and tree service waste. No trees are cut for the purpose of providing my fuel, but even if they were, new trees take their place. The trees had spent their lives growing and scrubbing carbon from the air so I am releasing only that carbon back into the atmosphere to complete the cycle. Burning wood creates no new carbon (or doesn't unlock buried carbon) so I believe it is carbon neutral.