As primary air enters the firebox it is pre-heated and directed towards the glass at the top of the front door. The constant washing of warm air over the glass helps keep soot and creosote from building up on the glass of wood burning appliances.
A partition inside a solid fuel appliance to control the direction of combustion air, flames or flue gases.
British Thermal Unit is the amount of energy it takes to heat one pint of water one degree Fahrenheit.
A coated ceramic honeycomb used on some stoves and high efficient fireplaces to reduce flue gas emissions.
The lab tested distance that is calculated and measured as a minimum distance an appliance or part of the appliance can be placed adjacent to a combustible surface INCLUDING drywall.
A direct vent system using a smaller pipe within a larger pipe. Inner pipe exhausts gases and outer pipe for fresh air intake.
A direct vent system using two separate liners, one is for exhaust gases and other for fresh air intake, running together through an existing chimney system.
Material made of or surfaced with wood, compressed paper, plant fibers, plastics or other material that can ignite and burn whether flame proofed or not. Drywall and Fire proof drywall are combustible material.
Wood burning appliance with a separate fire chamber and intended primarily for cooking. Cookstoves include an oven and often have optional water reservoirs and warming shelves.
Deposits of condensed wood smoke in the chimney resulting from incomplete combustion.
A type of electronic pilot ignition. It ignites the gas directly at the burner from a spark.
A venting system where all combustion air is drawn from outside and all flue gases are vented to the outside.
A fireplace constructed of metal and entirely of listed manufactured components. Often called Zero Clearance fireplaces, they are designed to be assembled in accordance with the terms of the listing and installed with its approved factory built chimney.
A chimney constructed entirely of listed manufactured components and designed to be assembled as an entire system.
A passageway for moving flue gases from combustion devices to the outdoors such as vent or chimney systems.
An open flame appliance that uses fabricated logs over a burner to provide a realistic and dramatic flame.
A seal used to create an air tight barrier. Found around glass, doors, and various components of wood and gas fireplaces, stoves & inserts.
A metal frame used to hold burning logs in a fireplace, usually constructed of heavy steel or iron.
Traditionally refers to the floor of a firebox where a fire is built and sometimes used to describe floor extending in front of the firebox. This term is often used today to reference the fireplace and stove industry.
A non-combustible surface extending in front of and beyond each side of the firebox opening.
A non combustible protector used around appliances, smoke pipe or chimney to protect combustible from heat. Heat shields are often built into or available options on most wood stoves.
Type of electric (intermittent) ignition system used to ignite main burner.
Uses Electronic Spark or Hot Surface Ignition to light pilot or burner on demand.
Improper air to fuel mixture, or inadequate temperatures resulting in less than complete burning of fuel.
Indicates the amount of BTUs of heat that will flow in one hour through on square foot of a uniform material one inch thick for each degree Fahrenheit of temperature rise.
Indicates the equipment meets recognized safety standards and is included in a list published by a recognized testing laboratory or inspection agency.
An ornamental facing surround the firebox usually consisting of legs, breast and shelf. Mantles can be manufactured with materials such as wood, plaster, stone or concrete.
Is constructed on site of masonry and fire clay material; construction is according to specified code.
Material when used as intended under anticipated conditions will not ignite, burn, support combustion or release flammable vapors when subjected to fire or heat.
Is Resistance Value and is a measure of how resistant a substance is to transferring heat.
Direct vent systems are self contained combustion systems where all combustion air is drawn from outside and combustion product is vented to the outside.
Term used to describe wood that has been allowed to dry before used for burning. Seasoning takes 6 – 12 months.
Soft black or brown velvety deposits of carbon particles. Originates in oxygen poor flames.