Performed heating maintenance on a Bryant single stage 80% efficient natural gas furnace 16x25x1 filter is in good shape, left the one we provide with the gold plan with the furnace Pulled and cleaned the flame sensor rod Blower wheel is clean Burners are clean Exhaust flue pipe in good shape Run tested furnace Gas pressure set to 3.2"wc Increased heating blower speed up one speed tap Temperature rise is 64⁰ No concerns found on today's visit