Buck Vent-Free Gas Stoves: T-33 & Townsend II

No Sales Tax on every vent-free gas stove. These Buck Stove heaters burn natural gas or propane with no chimney or vent pipe, light with a piezo igniter and keep heating during a power outage. Both are made in the USA, rated up to 32,000 Btu/h and have an oxygen depletion sensor that shuts the stove off if fresh air runs low.

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Buck Stove Model T-33 Buck Stove Townsend II
Input 22,400–32,000 Btu/h 22,400–32,000 Btu/h
Fuel Natural gas or propane (no field conversion) Natural gas or propane (no field conversion)
Blower Included Optional
Install Freestanding on legs or in a masonry fireplace Freestanding
Size (W x H x D) 26-1/4" x 23-3/4" x 16-11/16" 26-1/2" x 26-1/4" x 16-1/2"
Price $1,815 From $1,899

Check your local code first. California does not allow unvented room heaters in homes, Minnesota bars them in any dwelling, and the International Fuel Gas Code does not allow one as a home's only heat source. The manufacturer prohibits bedrooms, bathrooms and RVs, and the pilot may go out above 4,500 ft. Questions? Email info@stovesource.com or call 1-888-914-0022.

Need a vented gas stove instead? The Napoleon Arlington GDS20NNSB is a cast iron direct vent gas stove. It draws combustion air from outside and vents through a wall or roof, so the unvented-heater limits above don't apply to it. 20,000 Btu/h, millivolt (runs without electricity), natural gas with a propane kit available.

2 products

Vent-free gas stove FAQs

Is a vent-free gas stove legal where I live?

It depends on your state and town, so check before you order. California's housing regulations (25 CCR §34) say no unvented fuel-burning heaters are permitted in rented dwellings and guest rooms, and Minnesota's fuel gas code (Minn. R. 1346.5621) bars unvented room heaters in any dwelling. Other places allow them with conditions: in Massachusetts, cities such as Worcester require a fire department permit, a carbon monoxide detector in the room and a final inspection. The manufacturer also prohibits installing either stove in a bedroom, bathroom or RV. Call your local building or fire department to confirm.

Natural gas or propane: can I convert one later?

No. Both stoves are built for one fuel at the factory, and the manuals say they cannot be converted in the field, so order the version that matches your gas supply. The Buck Stove Model T-33 comes as T-33NG (natural gas) or T-33LP (propane); the Buck Stove Townsend II comes as TS2NG or TS2LP, with or without a blower. Propane installs need an external regulator that limits tank pressure to 13" W.C.

Do they work without electricity?

Yes. Both light with a piezo igniter and run on a standing pilot, so they keep heating through a power outage. Only the blower needs an outlet: it comes with the T-33 and is optional on the Townsend II. With the power out, the stove still heats; the fan just doesn't run.

How big a room can one heat, and how much ventilation does it need?

Both stoves are rated 22,400 to 32,000 Btu/h input. The manuals require at least 50 cubic feet of room volume per 1,000 Btu/h, which is 1,600 cu ft at the 32,000 Btu/h maximum, or about a 200 sq ft room with 8 ft ceilings. A smaller space needs extra fresh air as the manual describes. Each stove has an oxygen depletion sensor that shuts it off if fresh air runs low, and a vent-free heater should be supplemental heat, not your home's only heat source. For room sizes by ceiling height, moisture and odor tips, and how vent-free compares with pellet and wood, see our ventless gas stove buying guide.

Every vent-free gas stove ships with No Sales Tax in any state. Questions? Email info@stovesource.com or call 1-888-914-0022.