Martin 20,000 BTU Direct Vent Propane Heater MDV20VP

Maximize your heating potential with the Martin MDV20VP, the most powerful unit in the Martin direct vent line. Capable of warming larger spaces up to 538 sq. ft., this 20,000 BTU heater combines robust performance with the aesthetic appeal of a ceramic glass viewing window. Like its smaller counterparts, it requires absolutely no electricity, offering a dependable and silent heating solution for off-grid homesteads, larger cabins, and remote workspaces.

Questions about this heater?

Call Sales Support: +1 (844) 603-4743 | Email: sales@thecabindepot.com

Or submit a request via our Support Form (select "Sales" category)

Key Features & Benefits:

High-Capacity Heating: With 20,000 BTUs, this unit is designed for larger main rooms or open-concept cabins.

Ceramic Glass Window: Enjoy the ambiance of a visible flame, adding a cozy focal point to your room ("VP" Visio Model).

100% Off-Grid Ready: Operates without any electrical connection, ensuring heat is available during power outages.

Safe Direct Venting: A sealed system that draws combustion air from outside and vents exhaust externally, preserving indoor air quality.

Thermostatic Control: Built-in thermostat modulates the flame to maintain consistent comfort and reduce fuel waste.

Durable Design: Features a heavy-duty die-cast aluminum grill for superior heat distribution and longevity.

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). Ensure all connections are performed by a qualified gas technician.
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.

Having trouble with your heater? We can help with troubleshooting!

Technical Support (The Cabin Depot):

Request Technical Support

Warranty Claims (Manufacturer):

Submit Warranty Claim to Martin

Technical Specifications

Specification	Details
Product Name	Martin Direct Vent Heater (Visio)
Manufacturer	Martin (Bismar Inc.)
Model Number	MDV20VP
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)
Window	Glass-Ceramic Visor
Warranty	1 Year Parts / Lifetime Combustion Chamber
Contents	Heater Unit, Vent Installation Kit, Wall Template, Manual