High Eff Furnace, Upflow, 90K BtuH, NGGLUA90-E4B 510189
Average Rating: n/a
- Residential 90+ AFUE Gas Furnaces
- Direct spark ignition. 3-speed direct-drive fan. 95%+ models have ECM variable-speed blower that adjusts speed and delivers warm air quietly with no belts or pulleys.
- In-shot burner. Timed On, adjustable blower-Off delay for cooling SEER improvement. Self-diagnostics with fault code displays. Convertible to LP gas. Flue dia. is 2" or 3", determined by length of run.