Sierra Flame Boston 36" Direct Vent Linear Gas Fireplace | Builder Series | NG & LP

Sierra Flame Boston 36" — Compact Modern Direct Vent Linear Gas Fireplace | Builder Series

The Sierra Flame Boston 36 is a compact, modern direct vent linear gas fireplace for homeowners and builders who want a built-in look without a deep wall build-out. With a framing depth under 10", 16,000 BTU of heat and a full fan kit, it fits living rooms, bedrooms and tight new-construction layouts. Choose natural gas or propane.

The Boston 36 uses compact 4" x 6" top venting, a linear burner, and a glass kit and pebble kit. It starts with electronic ignition and runs from a low-voltage (millivolt-rated) wall switch. A basic remote is available separately as an optional add-on.

Features at a Glance

• True linear design — tempered glass viewing area with a clean, modern look
• 16,000 BTU (natural gas) with a full fan kit to circulate heat
• Compact build — 9-5/8" framing depth fits shallow wall designs
• Electronic ignition with 100% safety shut-off
• Wall switch operation — runs from a low-voltage wall switch; basic remote available as an add-on
• Top vent, 4" x 6" direct vent — compact venting for flexible placement
• Natural gas or propane

Technical Specifications

Boston 36 Owner's Manual (PDF)

Frequently Asked Questions

Does the Boston 36 need a remote?
No. It runs from a low-voltage (millivolt-rated) wall switch. The control module also has a built-in remote receiver, so you can add the Basic Remote for Electronic Ignition from our add-on options. See the owner's manual for wiring and setup.

Will it work during a power outage?
The control module runs on a plug-in 110V AC adapter. With the adapter alone there is no backup power during an outage. The manual lists an optional battery backup package for that purpose.

What venting does the Boston 36 use?
It uses 4" x 6" direct vent flex pipe with top venting and horizontal or vertical termination. Venting is required for every installation. Follow the owner's manual and your local building codes for vent layouts and clearances.

Is it available in natural gas and propane?
Yes. Select natural gas or propane above.

Can I use it above 4,500 feet?
The Boston 36 is set for 0–4,500 ft as shipped. Higher elevations need smaller orifices. See the manual for sizes.

Is the Boston 36 a good indoor gas fireplace for a small room or shallow wall?
It can be. The framing depth is under 10", so it suits shallow wall builds, bedrooms and tight new-construction layouts. At 16,000 BTU it is a smaller heat output than our larger linear models, so confirm sizing for your room and review the owner's manual and local codes.

Warranty Information

Warranty applies to the original purchaser only and is non-transferable. Installation must be performed by a licensed, authorized technician in accordance with the owner's manual and all local codes. See the owner's manual for full terms and exclusions.

Compare more models in our indoor gas fireplaces or read the gas fireplace buying guide.

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