Martin 20,000 BTU Direct Vent Propane Heater MDV20P

Keep cozy this winter with the Martin MDV20P, a powerful 20,000 BTU direct vent propane heater designed for larger off-grid applications. Because it requires absolutely no electricity to operate, this unit is the perfect heating solution for cabins, cottages, and workshops where power is scarce or unreliable. The direct vent technology ensures that all combustion gases are exhausted outside, keeping your indoor air safe and clean without the need for complex chimney systems.

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Key Features & Benefits:

20,000 BTU Capacity: Delivers powerful heat for larger spaces up to 538 sq. ft.

Non-Electric Operation: Operates entirely without power, ensuring you stay warm even during blackouts or in off-grid locations.

Direct Vent Safety: Draws fresh air from outside and vents fumes directly outdoors, eliminating Carbon Monoxide concerns.

Built-In Thermostat: Automatically regulates heat output (Hi-Lo Dial) to maintain your desired room temperature, maximizing fuel efficiency.

Heavy-Duty Construction: Built with a solid die-cast aluminum grill for better heat flow and long-lasting durability.

Piezo Ignition: Reliable push-button ignition system eliminates the need for matches or batteries.

Complete Kit: Includes the wall template and vent installation kit for a standard setup.

Important Performance & Support Information

Please review the following details to ensure this heater is right for your space:

Heating Capacity: 20,000 BTU (approx. up to 538 sq. ft.)*
*Actual performance varies based on ceiling height, insulation, and outside temperature.
Gas Connection: Designed for Liquid Propane (LPG) only. Connecting to an unregulated tank is dangerous; professional installation is recommended.
Clearances: 7" from floor, 6" from sides, 24" from top.
Wall Space: This unit is wider than smaller models (26" Width). Please measure your installation area carefully.
High Altitude: Rated for elevations up to 2,000 ft. Above 2,000 ft, input ratings should be reduced by 4% for each 1,000 ft.
The Cabin Depot® recommends qualified installers and accepts no liability for customer installations.

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Technical Specifications

Specification	Details
Product Name	Martin 20,000 BTU Direct Vent Heater
Manufacturer	Martin (Bismar Inc.)
Model Number	MDV20P
Fuel Type	Liquid Propane
Max BTU Input	20,000 BTU/hr (Variable down to 6,000)
Thermal Output	16,000 BTU/hr (80% Efficiency)
Heating Area	Approx. 538 sq. ft. (50 m²)
Fuel Consumption	~1.08 hrs/lb (at max continuous operation)
Wall Thickness Range	4-1/2" to 12-5/8" (11.5cm - 32cm)
Dimensions (W x D x H)	26" x 8-1/4" x 22-5/8" (66 cm x 21 cm x 57.5 cm)
Weight	47.4 lbs (21.5 kg)
Ignition Type	Piezo
Thermostat	Built-in Hi-Lo Dial
Warranty	1 Year Parts / Lifetime Combustion Chamber
Certifications	CSA Certified (Canada & USA)