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If you can smell it, then is spreading through the room. There’s no rule of airflow which says air only flows upwards. And once you can smell smoke the particu
by graeme 3y ago
If you can smell it, then is spreading through the room. There’s no rule of airflow which says air only flows upwards.
And once you can smell smoke the particulate levels are generally very high
- simonsarris 3y ago> There’s no rule of airflow which says air only flows upwards. When you are burning a fire there is a rule, it's called the stack effect, it is the very point of having a long (and ideally straight) chimney.
- graeme 3y agoYou’d be a fool to burn a fire in your home if your fireplace has no chimney. But that doesn’t mean all the smoke goes upwards. Surprisingly I couldn’t find a single study which measured PM 2.5 from fireplaces with chimneys. However, a study on wood stoves (substantially better sealed) found a 30% rise. Which is actually less than I would have predicted. I’d still expect a fire to be higher, but I’m open to being wrong. If I’m ever going someplace with a chimney and fire I’ll bring a pm 2.5 meter for fun.