Professional installers check flue pipes, condensate drains

https://privatebin.net/?353459a43d97c5e7#3wCr8Z8A6Kn5z5nHygfW5v3dbpuirVBn7H1rbLb7x7tx

Professional installers look into flue pipes, condensate drains, and go back air sizing to steer clear of moisture points and ensure that lengthy-term furnace reliability and safety.