14NOV2023 Jason Brown Arrived for red club fall tune up service. Spoke with tenant about the systems performance. The thermostat said low battery the other day and I replaced the battery but it never worked. Cycled equipment into heating at the thermostat. Disconnect power to furnace. Tested HSI, flame sensor, blower motor, inducer, gas valve, and all safeties. Adjusted gas pressure to 1.8 low and 3.5 high. Replaced filter. Coil clean heat exchanger in great condition. Heat rise at 45 temperature split around 35-40. 0ppm CO. And everything is clean. Spoke with homeowner about the water heater. They have someone to do it but would like a quote. Attached is estimate for water heater replacement. Heater currently does not have hammer arrests or expansion tank. Recommend installing CO detectors and replacing old fire alarm.