optimus international 439 gimbal stove
Sale price
$150.00
Regular price $750.00
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optimus international 439 gimbal stove
Sale price
$150.00
Regular price $750.00
The serial/model identifiers you provided clear up the confusion: this is a vintage Optimus International Model 439 Propane Marine Range with an integrated oven, built to comply with US safety standards (hence the "USA" and registration stamps).
While Optimus is universally famous for its Swedish-made brass kerosene and alcohol backpacking stoves, they actively expanded into the luxury blue-water yachting market from the 1970s through the 1990s. To tackle the North American market, they manufactured dedicated marine gas ranges—like your Model 439—specifically engineered to run on compressed liquid propane gas (LPG) rather than pressurized liquid fuel. [1, 2, 3]
Model Specifics
- The Four Front Knobs: On this propane setup, the operation is completely streamlined. The three matching knobs directly throttle the gas flow to the three cooktop burners. The fourth knob serves as the thermostat and ignition control for the underlying oven burner, eliminating the manual pressure pumps found on their liquid-fueled models.
- Safety Valves & Thermocouples: Because propane gas is heavier than air and can pool dangerously in a boat's bilge, this US-spec model features mandatory mechanical safety thermocouples on every burner. If a gust of wind blows a flame out while cooking, the thermocouple cools down within seconds and automatically cuts off the propane flow.
- The Chassis: The unit is constructed entirely of marine-grade stainless steel and heavy chrome plating to resist salt-air corrosion. The gimbal system swings smoothly on side brackets, featuring an adjustable counterweight beneath the oven floor to keep the three-burner top level when moving between light pans and heavy cast-iron pots.
About the Manufacturer: Optimus International
Founded in Sweden in 1899, Optimus became a global titan of outdoor and marine cooking equipment, alongside historical peers like Primus and Svea. During the peak of fiberglass sailboat manufacturing, their marine division built heavy-duty cooking systems that were installed as standard luxury options by high-end boat builders worldwide. Today, the Optimus brand survives under the Katadyn Group portfolio, focusing primarily on expedition multi-fuel tactical stoves, meaning legacy marine support for these vintage propane units is mostly handled through specialized vintage yacht restoration communities. [1, 2, 3, 4]
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