38:09 😂 "these water heaters dont come with these flame marks here" yes, definitely a problem. This was a great presentation (as always), but I was thankful for the CO2 levels section. We have an air monitor, and our levels were high for CO2. (We are definitely interested in an ERV to help with this.) And after sealing up holes and weatherizing our house, we have significant reduced the exchange of air from outside due to leakage. So it's definitely time for that ERV!
38:09 😂 "these water heaters dont come with these flame marks here" yes, definitely a problem.
This was a great presentation (as always), but I was thankful for the CO2 levels section. We have an air monitor, and our levels were high for CO2. (We are definitely interested in an ERV to help with this.) And after sealing up holes and weatherizing our house, we have significant reduced the exchange of air from outside due to leakage. So it's definitely time for that ERV!