Performed two system heating maintenance Geo thermal dual fuel Air to air heat pump dual fuel Geo system: No active or stored faults No water leaks present on the ground loop piping 20x25x4 filter is new Blower is clean Removed flame sensor and cleaned Removed burners and cleaned Exhaust piping in good shape, no signs of water leaks Condensate trap clear No water leaks inside the furnace or from condensate piping Humidifier inoperable, disabled operation per customer Air to air system: 20x25x4 filter is new Blower is clean Blower Capacitor tested in spec Removed flame sensor and clesned Removed burners and cleaned Exhaust piping in good shape, no water leaks Condensate trap is clear No water leaks present inside or outside of the furnace Despite being 20yrs old, this furnace is operating within factory specifications at this time No concerns found on today's visit