4. Stoves and furnaces
  5. Hot-air furnaces
  6. Liquid or gaseous fuel
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Unit heater and heat exchanger therefor

Stoves and furnaces – Hot-air furnaces – Liquid or gaseous fuel
Patent

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Variable speed inducer motor control method

Stoves and furnaces – Hot-air furnaces – Liquid or gaseous fuel
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Vent overpressurization detection system for a fuel-fired, induc

Stoves and furnaces – Hot-air furnaces – Liquid or gaseous fuel
Patent

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Vertically-storable combustion heater

Stoves and furnaces – Hot-air furnaces – Liquid or gaseous fuel
Reexamination Certificate

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Wall furnace with side vented draft hood

Stoves and furnaces – Hot-air furnaces – Liquid or gaseous fuel
Patent

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Wall heater extension

Stoves and furnaces – Hot-air furnaces – Liquid or gaseous fuel
Patent

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Warm air furnace

Stoves and furnaces – Hot-air furnaces – Liquid or gaseous fuel
Reexamination Certificate

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