If I were to open the boiler before and after using it just as I have a wood stove, that brief exposure to trace amounts of toxins once a day would not influence a choice to use it. That theory is quite far fetched.
The finding that gas stove toxins can be significant is also more recent than the popularity drop in gas ovens.
You open the front of your gas boiler?
Exchanging air with the environment?
If I were to open the boiler before and after using it just as I have a wood stove, that brief exposure to trace amounts of toxins once a day would not influence a choice to use it. That theory is quite far fetched.
The finding that gas stove toxins can be significant is also more recent than the popularity drop in gas ovens.