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Hearth ventilators for domestic fireplaces

Stoves and furnaces – Liquid heater
Patent

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Heat circulating fireplace

Stoves and furnaces – Liquid heater
Patent

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Heat circulating fireplace grate assembly for gas fired logs

Stoves and furnaces – Liquid heater
Patent

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Heat conservation and storage apparatus and system

Stoves and furnaces – Liquid heater
Patent

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Heat exchange apparatus

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

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Heat exchange apparatus

Stoves and furnaces – Liquid heater
Patent

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Heat exchange system

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

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Heat exchanger

Stoves and furnaces – Liquid heater
Patent

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Heat exchanger

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

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Heat exchanger

Stoves and furnaces – Liquid heater
Patent

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Heat exchanger for use in fireplace

Stoves and furnaces – Liquid heater
Patent

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Heat exchanger manifold for swimming pool or spa heaters

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

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Heat exchanger unit

Stoves and furnaces – Liquid heater
Patent

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Heat extracting apparatus for fireplaces

Stoves and furnaces – Liquid heater
Patent

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Heat generator of the combustion product condensation type and p

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

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Heat hugger

Stoves and furnaces – Liquid heater
Patent

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Heat recovery apparatus for installation particularly in a domes

Stoves and furnaces – Liquid heater
Patent

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Heat recovery hood

Stoves and furnaces – Liquid heater
Patent

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Heat recuperator for fireplace

Stoves and furnaces – Liquid heater
Patent

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Heat storage device

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

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