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Hybrid direct/indirect water heating process and apparatus

Stoves and furnaces – Liquid heater – Fluid fuel burner for other than top-accessible vessel
Patent

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Ice fishing hole heater

Stoves and furnaces – Liquid heater – Fluid fuel burner for other than top-accessible vessel
Patent

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Ignition device for water heaters

Stoves and furnaces – Liquid heater – Fluid fuel burner for other than top-accessible vessel
Patent

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Immersible water heater

Stoves and furnaces – Liquid heater – Solid fuel burner and submerged under the liquid
Patent

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Immersion tube heater treater improved immersion tube heater tre

Stoves and furnaces – Liquid heater – Fluid fuel burner for other than top-accessible vessel
Patent

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Indirect heat transfer apparatus

Stoves and furnaces – Liquid heater – Fluid fuel burner for other than top-accessible vessel
Patent

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Induced draft fryer

Stoves and furnaces – Liquid heater – Open-top vessel that may include lid
Patent

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Induced draft heat exchanger with serpentine baffles

Stoves and furnaces – Liquid heater – Open-top vessel that may include lid
Patent

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Induced draft submerged burner

Stoves and furnaces – Liquid heater – Fluid fuel burner for other than top-accessible vessel
Patent

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Inner door for water heater

Stoves and furnaces – Liquid heater – Boiler receiving hot liquid or steam from stove or furnace
Patent

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Insert for the furnaces of boilers

Stoves and furnaces – Liquid heater – Boiler receiving hot liquid or steam from stove or furnace
Patent

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Instantaneous gas water heater

Stoves and furnaces – Liquid heater – Fluid fuel burner for other than top-accessible vessel
Patent

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Instantaneous gas water heater

Stoves and furnaces – Liquid heater – Fluid fuel burner for other than top-accessible vessel
Patent

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Instantaneous steam generator

Stoves and furnaces – Liquid heater – Kettle furnace
Patent

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Insulated firebox for swimming pool or spa heaters for reduction

Stoves and furnaces – Liquid heater
Patent

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Insulated fluid storage unit and method of making

Stoves and furnaces – Liquid heater – Open-top vessel that may include lid
Patent

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Insulated server

Stoves and furnaces – Liquid heater – Open-top vessel that may include lid
Patent

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Insulating blanket for a water heater

Stoves and furnaces – Liquid heater – Boiler receiving hot liquid or steam from stove or furnace
Patent

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Internally mounted flue damper with exterior free-standing dampe

Stoves and furnaces – Liquid heater
Patent

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Jacketed wood stove

Stoves and furnaces – Liquid heater
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