GCWB95 Boiler
The pinnacle of efficiency
At 95% AFUE, this natural gas combination boiler is remarkably efficient
and 2021 ENERGY-STAR® Most Efficient. So that perfectly warm air and an endless
stream of hot water comes with minimal energy waste.
Learn more about Lennox awards for innovative initiatives in product design.
Real-time comfort
Faster heating times deliver both home heating and hot water on demand.
You can run the dishwasher, do a load of laundry, and take a shower without running out of hot water.
Perfectly pinpointed adjustments
Self commissioning allows this combination boiler to make its own adjustments during installation for immediate comfort that’s perfectly tuned to your home.