Lennox GCWB95 Boiler

Lennox 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.

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.