Completed gas furnace replacement. Disconnected and removed old furnace. Set new furnace on blocks and reconnected the ductwork and gas piping. Installed new 2†pvc pipes for the intake and exhaust and ran to exterior of the home through the wall. Installed a new T4 thermostat and connected the wiring to the new furnace. Capped off the old furnace vent hole into the chimney. Thank you for choosing Black-Haak Heating. Please take a moment to fill out our online survey.