12/18/18 removed old furnace. Installed new single stage daikin furnace. Added metal between duct and furnace. Also put a new drop elbow and filter rack. Filter size 16x25x1. Reconnected electrical and thermostat wiring to new furnace. Ran a new exhaust pipe outside for furnace to vent and ran one for intake. Reconnected the gas piping. Ran new drain hose from furnace and coil. Started furnace and it is running and draining properly. Thank you for choosing Black-Haak for your heating needs.