Wood Stoves, Space Heaters & Solid-Fuel Appliances Inspection Glossary of Terms and Conditions

Advanced combustion - A technology used in modern wood-burning appliances to improve combustion and reduce emissions. It may involve secondary air injection, catalytic combustion, or other methods of burning gases and particulates more completely.

Air-tight stoves - Wood stoves designed with tightly sealed doors and controlled air inlets, allowing the rate of combustion to be regulated.

Auger - A rotating screw mechanism used in pellet stoves to move fuel from the hopper into the combustion chamber.

Backpuffing - A condition in which smoke or combustion gases briefly reverse direction and escape from a wood stove or appliance into the room. It can occur due to poor draft, restricted airflow, or improper combustion conditions.

Cabinet - The outer enclosure of a space heater or other heating appliance. It protects internal components and may also help direct heat into the room.

Cabinet door - An access door on a heating appliance's outer enclosure, allowing access to internal components or controls.

Catalytic combustor / Catalytic combustors - A device in a wood stove that uses a catalyst to promote the combustion of smoke and unburned gases at lower temperatures than would otherwise be required. Catalytic combustors require proper operation and periodic inspection or replacement.

Chimney fires - Fires that occur inside a chimney or flue, usually involving accumulated creosote. They can produce extremely high temperatures and damage the chimney or ignite nearby combustible materials.

Combustible clearances - The minimum required distances between a stove or heater and nearby combustible materials. These distances depend on the appliance's listing, installation instructions, and approved heat shields.

Free standing - An appliance installed independently rather than built into a wall or fireplace enclosure. Freestanding stoves generally require appropriate floor protection and clearances.

Hopper - A storage container that holds pellets or other fuel before it is fed into an appliance's combustion chamber.

Listed or certified - An appliance or component that has been evaluated by an accepted testing or certification organization and found to comply with applicable safety standards.

Listing or testing agencies - Organizations that evaluate appliances, equipment, and building products against established safety standards. Examples include recognized certification bodies such as CSA and UL.

Manufacturers' specifications - The installation, operating, clearance, maintenance, and servicing requirements provided by the appliance manufacturer.

Pellet stoves - Heating appliances that burn compressed wood or biomass pellets. They typically use an electrically operated auger and fan system to control fuel delivery and combustion.

Radiant heaters - Heating appliances that transfer heat primarily through infrared radiation rather than by directly heating and circulating large volumes of air.

Space heaters - Appliances designed to heat an individual room or relatively small area rather than an entire building.

Stoves - Enclosed appliances designed to burn wood, coal, pellets, gas, or other fuels to provide heat.

Wood stoves - Enclosed heating appliances designed primarily to burn firewood. They may be catalytic or non-catalytic and require suitable venting, floor protection, and combustible clearances.