Then your burner is probably going clear. If they're yellow, you almost certainly have dirty burners. You can clean your burners by using a vacuum cleaner; just make sure to convert the ability along with the fuel off initial. A different place you should clean using a vacuum cleaner could https://hvac-near-me13332.spintheblog.com/34207233/not-known-factual-statements-about-hvac-near-me