Noble®
Residential Combination Gas Boiler

  • Delivers More Hot Water

    Sized large enough to quickly meet domestic hot water (DHW) load. Provides DHW from 2.6 (110) up to 4.8 gpm (199) at a 77°F temperature rise.

  • Faster DHW Response Time

    When you turn on a hot water faucet using many combi boilers, you initially get hot water and then a brief burst of cold water before the hot water resumes. Thanks to its patent-pending control technology, this combi boiler eliminates this cold water “sandwich”.

  • Prevents Cool Air Circulation

    Air handler interlock prevents cool air circulation in Hydro-Air installations when the appliance is making domestic hot water.

  • Easy to Install and Program

    Quickly program the Noble in less than 5 minutes with our Set-Up Wizard that uses plain English – not confusing codes to guide the installer.

Collage of various water heaters

Noble Fire Tube Combi Boiler

The ENERGY STAR® qualified Noble combi boiler delivers 95% efficiency, which means 95 cents out of ever energy dollar gets converted into dependable hot water and comfortable space heating.

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Endless Hot Water

The Noble combi boiler delivers up to 4.8 gallons of hot water per minute – one of the highest capacities in the combi market – so users can run multiple fixtures at the same time.

cutout of house showing hotwater sources

More About Lochinvar

Lochinvar’s heritage of excellence dates back to 1939, when Walter Vallett, Sr. founded the Walter Vallett Company. Today, Lochinvar continues our leadership position in the industry.