INVOICE SUMMARY Work Performed – 2021 KeepRite Two-Stage Furnace Maintenance - Performed full maintenance - Furnace operating normally with no concerns - Filter was very clogged; advised replacement every two months - All other checks are good to go Furnace Inspection & Maintenance Items - Burners cleaned as needed - Flame sensor cleaned - Ignitor tested - Blower motor inspected - Blower wheel inspected - Amp draws tested - Heat exchanger testing performed - Temperature rise checked - Safety controls tested - Pressure switches tested - Pressure switch tubing inspected - Condensate trap cleaned as needed - Drain line flushed - Intake/exhaust inspected - Venting inspected - Filter inspected (very clogged) - Electrical connections checked - Combustion analysis performed - Gas pressures verified - Furnace vacuumed Results - Furnace operating safely and efficiently - Filter replacement strongly recommended