96% furnace replacement in a 1926 bungalow
Original mid-efficiency furnace was cracked at the heat exchanger. Replaced with a two-stage condensing furnace, re-piped the gas line and added a proper concentric vent through the rim joist.
- ·Manual J load calculation showed the old unit was 30% oversized
- ·New plenum transitions fabricated on site
- ·Concentric intake/exhaust vent, condensate pumped to floor drain
- ·Combustion analysis and static pressure documented at commissioning
“They found the cracked heat exchanger the same morning our old furnace quit and had a new one running by dinner. The basement was cleaner when they left than when they arrived.”
— Danielle R.