Martin Propane Direct Vent Heater MDV12VP – 11,000 BTU | Off-Grid Wall-Mount Heating Solution
Questions about this product
Questions about this product
What room size will each model handle?
323 Square Feet
Do they need electricity and will they run during an outage?
No power required. They use a standing pilot with a piezo ignitor and a mechanical control, so they keep heating with the lights out.
What clearances and mounting height do I need?
Sides 6 in. Above 24 in. From finished floor 7 in to the bottom of the heater. Rear clearance: MDV8 is 25/32 in, MDV12/MDV20 are 1-3/16 in. Use the included wall template. Keep the exterior vent cap at least 24 in from any outside intersecting wall.
What comes in the vent kit and what wall thicknesses are supported?
Vent kit includes: external air-intake tube with enamel hood, internal flue-gas tube, indoor and outdoor mounting plates, plus a wall thimble on MDV12 and MDV20, with threaded rod and adjusting nut. Approved wall thickness is 4-1/2 in to 12-5/8 in. Thicker walls aren’t supported by the manual.
Can I convert propane to natural gas, and what about high-elevation derate?
These units are not convertible. Order the model for your gas type. Above 2,000 ft, reduce input by 4 percent per 1,000 ft.
Delivery and shipping
Delivery and shipping
Orders are typically processed within 1 to 2 business days from the time of purchase, excluding holidays and weekends.
Shipping times and cost will vary depending on the product and your location.
On average:
Ontario and Quebec: 2 to 5 business days
Western Canada: 4 to 7 business days
Atlantic provinces: 4 to 8 business days
Northern or remote areas: Contact us to confirm
Description
Stay warm wherever power lines don’t reach. The Martin MDV12VP Propane Direct Vent Wall Heater delivers reliable, efficient heat in remote spaces, cabins, garages, or off-grid homes — no electricity required. Engineered with a built-in thermostat and a striking fireplace-style design, this 11,000 BTU wall-mount unit blends performance with aesthetic appeal.
Its sleek, compact build fits cleanly into any wall setup, while direct venting ensures indoor air stays fresh and safe. Built from durable die-cast aluminum with a ceramic glass window, it’s built to last — and look good doing it.
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Key Features
• 11,000 BTU Heating Power – Comfortably warms up to 323 ft²
• No Power Needed – Perfect for off-grid setups or emergency backup
• Direct Vent Safety – Vents combustion gases outdoors for cleaner indoor air
• Built-In Thermostat – Flame automatically adjusts between low/high for consistent temps
• Ceramic Glass Flame Window – Adds cozy visual appeal to the functional heat
• Heavy-Duty Die-Cast Construction – Durable and corrosion-resistant
• Clean Wall Protection – Back stays room-temperature to avoid wall discolouration
• Simple Installation – Wall compatibility from 4.5” to 12.63” thickness
• Low Maintenance – Efficient design minimizes upkeep
• Compact Dimensions – 15” (W) x 7 1/8” (D) x 22 5/8” (H) | Weight: 23 lbs
• Color – Sleek silver and black
• Warranty – 1-Year Limited Manufacturer’s Warranty
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Why Choose This Heater?
✔ Ideal for Off-Grid Living – Whether you’re powering a cabin or a tiny home, this heater works without electricity.
✔ Space-Saving Design – Mounts on the wall, saving precious floor space.
✔ Safe & Reliable – CSA-certified for Canada and the US, with flame-viewing protection.
✔ Aesthetic Upgrade – No more ugly utility heaters; this looks like a modern fireplace.
✔ Consistent Performance – Set your desired heat level and let the unit handle the rest.
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Lifestyle Use
Whether you’re off-grid full-time or prepping for emergencies, the Martin MDV12VP brings dependable warmth and a cozy glow. It’s a top pick for cottages, remote cabins, mobile workspaces, and anyone who values both form and function in their heating.
To serve our customers across Canada, whether you're in a major city or completely off the grid, many of our products are shipped via freight delivery to ensure safe and efficient transport. Depending on your location and the item, you’ll have the option to pick up from a nearby warehouse terminal or request home delivery.
Free Terminal Pickup on Most Large Items
Most large items we sell, including appliances, solar kits, and other freight-shipped products, include free shipping to your closest warehouse terminal.
Your order will be delivered to the nearest terminal based on your location, where you can pick it up at your convenience.
Need it delivered to your home or cabin? We can set that up for you. There is a small additional fee for residential delivery.
Remote and Hard-to-Reach Locations
If you live in a remote area or outside standard freight zones, please contact us before placing your order.
Some rural locations may require additional charges or special delivery arrangements. We'll confirm everything with our freight partner before shipping.
Local Pickup Options Across Canada
We work with warehouse terminals in every province, so many of our products can be picked up locally to save on shipping costs.
Not all items are eligible, so if you're unsure at checkout, give us a call or send us an email and we'll confirm the best option for your area.
Shipping Times and Order Processing
Orders are typically processed within 1 to 3 business days from the time of purchase, excluding holidays and weekends.
Shipping times will vary depending on the product and your location. On average:
- Ontario and Quebec: 2 to 5 business days
- Western Canada: 4 to 7 business days
- Atlantic provinces: 4 to 8 business days
- Northern or remote areas: Contact us to confirm
We will provide tracking details when available once your order has shipped.
Receiving Freight Shipments
For large freight deliveries, you will receive a call from the carrier or your nearest terminal when your order is ready for pickup or delivery.
Important: Always inspect your shipment before signing any paperwork.
If the box or pallet is damaged:
- Do not sign the Bill of Lading (BOL) as "received in good condition"
- Instead, note the damage clearly on the BOL
- Or refuse the shipment if damage is significant
If no damage is recorded and the shipment is accepted, the freight carrier will consider it delivered in perfect condition. In that case, we cannot issue a refund or replacement. This is a strict freight carrier policy and applies to all deliveries.
Damaged or Missing Items
If there’s an issue with your shipment (whether it’s damage, missing parts, or anything unusual) please contact us within 48 hours of receiving the item. Be sure to include photos whenever possible, as these are often required to file a freight claim on your behalf. If the item was shipped to a terminal, it must be picked up within 48 hours or a $45/day storage fee will apply.
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. Shipping costs back to Canadian Off Grid are the responsibility of the customer and 15% restocking fee will apply.
To start a return, you can contact us atryan@canadianoffgriddepot.com. If your return is accepted, we’ll contact you to discuss options, as well as instructions on how and where to return your item. Items sent back to us without first requesting a return will not be accepted.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.







