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Heat control device for a wood or coal burning stove

Automatic temperature and humidity regulation – Hot-air furnace – Air and fire control
Patent

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Heat exchanger flame control

Automatic temperature and humidity regulation – Hot-air furnace – Air and fire control
Patent

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Heated air distribution system

Automatic temperature and humidity regulation – Hot-air furnace – Air and fire control
Patent

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Heater device control

Automatic temperature and humidity regulation – Hot-air furnace – Air and fire control
Patent

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Heating and air conditioning fan sensor control

Automatic temperature and humidity regulation – Hot-air furnace – Air and fire control
Patent

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Heating apparatus

Automatic temperature and humidity regulation – Hot-air furnace – Air and fire control
Patent

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Heating arrangements and control systems therefor

Automatic temperature and humidity regulation – Hot-air furnace – Air and fire control
Patent

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High efficiency gas furnace

Automatic temperature and humidity regulation – Hot-air furnace – Air and fire control
Patent

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High energy saving heat exchanger for furnaces

Automatic temperature and humidity regulation – Hot-air furnace – Air and fire control
Patent

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Home heating system draft controller

Automatic temperature and humidity regulation – Hot-air furnace – Air and fire control
Patent

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Hot-water supply apparatus, anti-freezing method thereof,...

Automatic temperature and humidity regulation – Hot-air furnace – Air and fire control
Reexamination Certificate

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Hot-water supply apparatus, anti-freezing method thereof,...

Automatic temperature and humidity regulation – Hot-air furnace – Air and fire control
Reexamination Certificate

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