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US 2025/0146708 A1Published application
Steam or water boiler that can operate on gas/oil or electricity
OwnerRobert Knief, Leonard Kniefinventors
Life of this patent
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Abstract
The present invention is a tri-fuel boiler that fires oil, natural gas or electricity.
Claims19
A 4 pass design, tri fuel boiler comprising:
- a boiler that fires oil, natural gas or full electric at different times on the same boiler;
- said boiler having an oil mode, natural gas mode and an electric mode.
Dependencies are inferred from the claim text.