Cubic Mini wood stove: choose the model, then the install
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Quick answer
Cubic Mini makes two stove sizes, each in a non-certified and a UL/ULC safety-certified version. The Cub puts out 6,000 to 14,000 BTU for 100 to 200 square feet; the Grizzly puts out 8,000 to 18,000 BTU for 200 to 400 square feet. Cubic says none of them is approved for residential installation, so they suit a cabin, shed or workshop backup, not your house. Pick the Grizzly for winter use, poor insulation or ceilings over 7 feet, even in a small space.
The four Cubic Mini models
Cubic Mini Wood Stoves sells the Cub and the Grizzly in two versions. The certified models carry UL 1482-2022 (U.S.) and CAN/ULC-S627-2023 (Canada) safety certification. The non-certified models do not.
| Model | Safety certification | Output | Space heated | Size (W x H x D) | Weight |
|---|---|---|---|---|---|
| Cub CB-1000 | None | 6,000 to 14,000 BTU | Under 200 sq ft | 11 x 12 x 10.5 in | About 27 lb |
| Cub CB-1008 | UL 1482 / ULC-S627 | 6,000 to 14,000 BTU | 100 to 200 sq ft | 11 x 12 x 10.5 in | About 27 lb |
| Grizzly CB-2000 | None | 8,000 to 18,000 BTU | About 200 to 400 sq ft | 13 x 15 x 12 in | 40 lb |
| Grizzly CB-1210 | UL 1482 / ULC-S627 | 8,000 to 18,000 BTU | 200 to 400 sq ft | 13 x 15 x 12 in | 40 lb |
Cubic lists the Cub's output as 1.75 to 4.1 kWh as well. Output and coverage come from Cubic's FAQ and product pages; real results depend on insulation, ceiling height and wood quality.
Cub or Grizzly: size is not the only factor
Cubic's own guidance is more conservative than square footage alone. It says the Cub is meant for recreational spaces under 200 square feet with low ceilings and good insulation during spring and fall. For winter use, poor insulation or ceilings higher than 7 feet, Cubic recommends the Grizzly even when the space is under 200 square feet.
The firebox decides how long you can go between loads. Cubic lists the Cub's interior firebox at 6 x 7.375 x 6.5 inches and the Grizzly's at 6.75 x 7.375 x 7.5 inches. Logs should be cut to about 5 3/4 inches for the Cub and 6 3/4 inches for the Grizzly. Plan to cut and store small, well-seasoned splits; Cubic names seasoned hardwood and pressed logs as the best fuels.
Both stoves have a removable rail and a small cooktop. With the rail off, the Cub gives a 5-inch by 11-inch area beside the flue and the Grizzly 6 1/2 by 13 inches of cooking surface.
Certified or non-certified: the install is different
Cubic warns not to apply non-certified setup guidance to a certified model. The flue and clearance rules differ.
| Requirement | Non-certified CB-1000 / CB-2000 | Certified CB-1008 / CB-1210 |
|---|---|---|
| Stove clearance to combustibles (unshielded) | 14 in sides, 16 in front, 40 in above | 14 in sides, 16 in front, 40 in above |
| 3-inch flue pipe clearance | 9 in unshielded, or 3 in with proper flue shielding along the whole run | At least 18 in from the pipe's outside surface; shielding does not reduce it in Canada |
| Chimney | 3-inch flue pipe, 5-inch insulated pipe and exit kit | 3-inch flue pipe to a 6-inch double wall chimney certified to UL 103 HT or ULC-S629, via connector cone CB-3060 |
| Underside | Must be shielded at all times | Use the bottom heat shield on a certified hearth pad |
None of the flue parts come with the stove. Plan the space and every part of the complete system before you order, and follow the manual for your exact model. Shielding never reduces the 40-inch overhead clearance on the non-certified models.
Where Cubic says these stoves do not belong
Cubic states that its stoves are not approved for residential installation and do not have mobile-home certification. It tells buyers to speak with their insurer before purchasing or installing, because recreational and residential insurance requirements differ.
For the certified models, Cubic adds that the manual prohibits installation in a transportable building. It notes the manual does not define that term or explicitly address vans, buses or boats, and tells owners to confirm suitability with the relevant authority and insurer.
Safety certification is also separate from emissions certification. EPA explains that new EPA-certified wood stoves produce no more than 4.5 grams of smoke per hour, compared with 15 to 30 grams for older uncertified stoves, and says to look for the EPA certification label. Cubic describes its UL/ULC listing as separate from environmental emissions certification, so check your local rules before you count on one of these as a heat source.
Run it safely as backup heat
- Alarms. USFA advises CO alarms in a central location outside each sleeping area and on every level, and keeping stove vents clear of snow and debris.
- Right fuel. Use seasoned hardwood or pressed logs cut to the listed length, as Cubic recommends.
- Keep the clearances. Mark the side, front and overhead distances on the floor and wall so stored gear never creeps into them.
- Inspect the flue. Check the pipe joints and chimney as your model's manual directs.
A Cubic stove is built for small recreational spaces such as a cabin or workshop. It is not a substitute for a residential-listed heating appliance in your home.
What to look for when you buy
Small-space example: Cubic Mini Cub CB-1008 (certified)
Best for: A well-insulated cabin, shed or studio under 200 sq ft used in mild seasons
Cubic lists 6,000 to 14,000 BTU, about 27 lb, an 11 x 12 x 10.5 in body and UL 1482-2022 / CAN/ULC-S627-2023 safety certification.
Watch out: Needs a 6-inch UL 103 HT chimney and 18 inches of pipe clearance. Not approved for residential use.
See options on Amazon (opens Amazon in a new tab)Winter example: Cubic Mini Grizzly CB-1210 (certified)
Best for: Spaces of 200 to 400 sq ft, winter use, poor insulation or ceilings over 7 feet
Cubic lists 8,000 to 18,000 BTU, 40 lb, a larger 6.75 x 7.375 x 7.5 in firebox and 6 3/4-inch logs.
Watch out: Same certified chimney and clearance rules as the Cub. Confirm insurer acceptance before buying.
See options on Amazon (opens Amazon in a new tab)Required accessory: battery-powered CO alarm
Best for: Every space with a wood stove
USFA advises CO alarms outside each sleeping area and on every level as early warning of carbon monoxide.
Watch out: An alarm does not replace correct flue installation or clearances.
See options on Amazon (opens Amazon in a new tab)Questions people ask
- Can I install a Cubic Mini wood stove in my house?
- Cubic says its stoves are not approved for residential installation and do not have mobile-home certification. Use them for recreational spaces and check with your insurer and local authority first.
- What is the difference between the Cub and the Grizzly?
- The Grizzly is larger: 8,000 to 18,000 BTU versus 6,000 to 14,000, 40 lb versus about 27 lb, and 6 3/4-inch logs versus 5 3/4-inch. Cubic recommends it for winter use or ceilings over 7 feet.
- What does the certified version change?
- The CB-1008 and CB-1210 carry UL 1482 and ULC-S627 safety certification and require a 6-inch double wall chimney certified to UL 103 HT or ULC-S629, with 18 inches of pipe clearance.
- Is a Cubic Mini stove EPA certified?
- Cubic describes its UL/ULC safety certification as separate from environmental emissions certification. Check EPA's list of certified stoves and your local rules before relying on one.
Sources
- CB-1000 Cub (non-certified): size, output, clearances, flue, Cubic Mini Wood Stoves
- CB-1008 Cub (UL/ULC certified): install and chimney requirements, Cubic Mini Wood Stoves
- CB-2000 Grizzly (non-certified): size, firebox, clearances, Cubic Mini Wood Stoves
- CB-1210 Grizzly (UL/ULC certified): install and chimney requirements, Cubic Mini Wood Stoves
- Cub and Grizzly FAQs: BTU, square footage, log length, residential status, Cubic Mini Wood Stoves
- Choosing the right wood-burning stove: EPA certification and smoke output, U.S. EPA Burn Wise
- Carbon monoxide: alarm placement and vent clearing, U.S. Fire Administration