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How to Choose the Right Martin Direct Vent Heater for Your Needs

by Cliff Co July 12, 2024 5 min read

When you're heating your home to a comfortably warm temperature, using the right space heater will save you a ton of money. Martin Direct Vent Heaters are known for their efficiency, reliability, and sleek fireplace design.

There are a handful of different models to choose from, but as long as it's a Martin product, it's sure to be high quality. By understanding the difference between Martin Direct Vent Heaters, we’ll help you find the perfect Martin heater to keep your living space effectively warm all winter long.

Differences between Martin heaters

At a Glance

Propane vs. Natural Gas

Propane heaters are mobile and efficient but require tank refills, while natural gas heaters are cost-effective and convenient with less frequent refills but need a natural gas pipeline.

Key Features

All models feature built-in thermostats, optional visors for better heat dispersion, glass ceramic windows for flame monitoring, and CSA certification for safety, designed to operate quietly and with minimal maintenance.

Installation Steps
  1. Select an exterior wall location.
  2. Mark and cut the opening.
  3. Install the adjustable vent assembly.
  4. Connect the gas line.
  5. Secure the heater unit.
  6. Connect the vent assembly.
  7. Install the pilot assembly.
  8. Perform a leak test.
  9. Start the heater.

Understanding the Difference Between Martin Direct Vent Heaters

Martin Direct Vent Heaters come in various models, each tailored to different heating needs. You'll notice how they all have the same features, differing only in the type of fuel used and BTUs. Whether your heater uses a propane tank or natural gas will determine the installation process, mobility, and efficiency.

installed martin direct vent heater

Martin Direct Vent Heater Comparison Overview

Propane Heater

Power Output 8,000 BTU 11,000 BTU 11,000 BTU 20,000 BTU 20,000 BTU
Heating Capacity 18 sqm (194 sqft) 30 sqm (323 sqft) 30 sqm (323 sqft) 50 sqm (538 sqft) 50 sqm (538 sqft)
Noise Level Low Low Low Low Low
Visor No No Yes No Yes
Glass Ceramic Window No No Yes No Yes
Built-In Thermostat Yes Yes Yes Yes Yes

Natural Gas Heater

Power Output 8,000 BTU 11,000 BTU 11,000 BTU 20,000 BTU 20,000 BTU
Heating Capacity 18 sqm (194 sqft) 30 sqm (323 sqft) 30 sqm (323 sqft) 50 sqm (538 sqft) 50 sqm (538 sqft)
Noise Level Low Low Low Low Low
Visor No No Yes No Yes
Glass Ceramic Window No No Yes No Yes
Built-In Thermostat Yes Yes Yes Yes Yes

Martin Heater prices and info

Differences Between Propane and Natural Gas Heaters

Propane Heater

Martin Direct Vent Propane Heater
  • Mobility: Ideal for remote areas without natural gas pipelines.
  • Efficiency: Propane generally provides more BTUs per gallon compared to natural gas.
  • Installation: Requires a propane tank which can be installed outside the home.

Direct Vent Gas Heater

Martin Direct Vent Natural Gas Heater
  • Convenience: Perfect for homes with existing natural gas lines.
  • Cost: Generally cheaper per unit of heat compared to propane.
  • Maintenance: Less frequent tank refills compared to propane tanks.

Choosing the Right BTU Level

The BTU (British Thermal Unit) rating of a heater determines its heating capacity. The higher the BTU rating, the more effectively a direct vent wall heater can raise the temperature of the room. Here’s a guideline to help you choose the right BTU level for your space:

Martin 8,000 BTU Heater

8,000 BTU

  • Ideal for small cabins or single rooms.
Martin 11,000 BTU Heater

11,000 BTU

  • Suitable for medium-sized rooms or larger living spaces.
Martin 20,000 BTU Heater

20,000 BTU

  • Perfect for large living areas or open-plan homes.

Martin Direct Vent Wall Heater Features

Built-In Thermostat

Martin Propane Heater with built-in thermostat

To prevent thermal variations, all Martin Direct Vent Heaters come with a built-in thermostat, ensuring that the room temperature remains constant. This is as low maintenance as it gets, so the only thing you need to do is replenish fuel (if it's a propane heater)

Visor Options

Martin Propane Heater 20,000 BTU with visor

Martin heaters offer models with and without visors. The visor enhances the heater's sleek fireplace design while providing additional heat dispersion. Visors are available for both propane and natural gas heaters, but only for the 11,000 and 20,000 BTU units.

Glass Ceramic Window

For heaters with visors, the glass ceramic window not only adds to the aesthetic appeal but also allows you to monitor the visible flame and adjust the flame for better heat flow and control.

Safety and Efficiency

Martin heaters are CSA certified and come with features like piezo ignition, a safeguard that prevents overheating, and adjustable heat settings.

Low Maintenance

Martin Direct Vent Heater easy maintenance

With heavy-duty grills and die-cast aluminum construction, Martin heaters are built for durability and require minimal maintenance, ensuring optimum use and longevity.

Noise Pollution

Designed to operate quietly, these heaters minimize noise pollution, making them perfect for any living space.


Martin Direct Vent Wall Heater installation

Installing a Martin Direct Vent Heater is straightforward with the detailed installation manual provided with each unit. In a nutshell, though, these are what you need to do:

  1. Select an Exterior Wall Location: Choose an appropriate exterior wall that allows for proper venting and is centrally located for optimal heat distribution.
  2. Mark and Cut the Opening: Carefully mark the location for the vent opening on the wall. Use the measurements provided in the installation manual. Cut the opening using appropriate tools, ensuring it matches the dimensions required for the vent assembly.
  3. Install the Adjustable Vent Assembly: Fit the adjustable vent assembly through the opening. Make sure it is securely positioned and that the exterior vent cap is properly aligned outside the wall.
  4. Connect the Gas Line: Attach the gas line to the heater unit, following the instructions for either propane or natural gas connections. Ensure all connections are tight and secure to prevent leaks.
  5. Secure the Heater Unit: Mount the heater unit to the wall, using the brackets and screws provided. Ensure it is level and securely fastened to the wall studs.
  6. Connect the Vent Assembly: Attach the interior vent pipe to the heater unit and connect it to the adjustable vent assembly. Ensure all connections are tight and properly sealed.
  7. Install the Pilot Assembly: Install the pilot assembly according to the instructions in the manual. Ensure the pilot flame is properly adjusted and functioning correctly.
  8. Perform a Leak Test: Before proceeding, conduct a leak test on all gas connections using a leak detection solution. Check for bubbles indicating gas leaks and tighten any loose connections as needed.
  9. Start the Heater: Once all connections are secure and leak-free, start the heater by following the ignition instructions. Adjust the thermostat to the desired temperature and ensure the unit operates smoothly.

The Economical Heating Solution

By using propane or natural gas, Martin heaters provide economical heating solutions by reducing electricity usage and gas wastage. Using a propane-based direct vent wall heater, you get stronger and more generated heat from a similar amount of natural gas. With a direct vent gas heater, fuel is cheaper and more constant, especially if you connect to a natural gas line.


Choosing the right Martin Direct Vent Heater involves considering factors like BTU levels, fuel type, and additional features like visors and built-in thermostats. Whether you need a heater for a small cabin or a large living space, all Martin heaters heat fast and evenly. Explore the full range of Martin Direct Vent Heaters and find the perfect unit to keep your home warm and cozy.

Have any questions or would like to place an order? We'd love to help! Chat with our friendly customer service team by calling 1-844-945-3625, chatting in on our website or email us at customersupport@wildoaktrail.com. We look forward to hearing from you!

Cliff Co
Cliff Co

Cliff, a passionate storyteller and hardcore seller, here to share insights and knowledge on all things prep. He firmly believes in only selling things he'd use himself, making sure only the best get to his readers' hands.

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