
Two-Stage Furnace Upgrade
Replaced the existing system with a 96% two-stage 80k furnace (59TP6B080V21-20) on a pedestal, reusing the condensate pump, filter boot, and return drop, and installed a new Ecobee thermostat while keeping the current A/C. Set gas pressures for high and low fire, adjusted fan-speed dip switches, corrected the exterior vent termination to code, and verified reliable heat.







