We correct backdrafting on gas heaters by improving combustion air, vent sizing, and clearances

https://www.scribd.com/document/1032971848/Everett-WA-Water-Heater-Repair-Services-Same-Day-Availability-186339

We correct backdrafting on gas heaters by improving combustion air, vent sizing, and clearances, protecting your family from exhaust and carbon monoxide risks.