Technology Info

Learn more about heating technologies and industry specific terms.

Advanced Energy (AE) Technology

Quadra-Fire Advanced Energy (AE) technology is a combination of efficient engineering and easy operation.

Automatic Combustion Control (ACC)

Automatic Combustion Control (ACC) is an advanced heat-management system from Quadra-Fire that regulates airflow and maintains the fire. ACC technology maintains precision airflow for longer, cleaner and more efficient burns.

Direct Vent Technology

Unvented or vent free fireplaces can literally turn your house into a chimney, causing health problems for your family. Thanks to patented Direct Vent Technology, your fireplace can use outside air for combustion, expelling 100% of the combustion exhaust and by-products. This means a pleasant heating experience without the presence of exhaust, fumes, soot and strong combustion odors.

Exhaust Sensing Probe (ESP) Technology

Harman pellet stoves utilize an advanced Exhaust Sensing Probe (ESP) system to deliver precision heating control. ESP constantly monitors and adjusts heat output to maintain set room temperatures within 1 degree.

FireBrick Technology

Direct vent FireBrick gas fireplaces and inserts provide the warmth and glow of a real wood burning fire without any of the inconvenience. FireBrick products are AFUE rated, energy efficient, and offer an airtight seal, for peace of mind and comfort. This patented ceramic fiber material has an extremely high insulation factor. This highly efficient material tolerates more heat, traps more heat and radiates significantly more heat into a room than a metal fireplace or insert and is quieter because no fan is needed. Combine any FireBrick product with the wide range of control options and a warm, cozy room is just a flip of the switch away.

FireDome Technology

FireDome technology from Harman maximizes wood-heating efficiency by completely burning the wood, smoke and exhaust in two combustion cycles. This system also keeps the viewing area clean by directing airflow between the glass and fire.

IntelliFire™ Ignition System

IntelliFire features intermittent-pilot Ignition (IPI) allowing you to conserve fuel and money when the fireplace is not in use.

Pellet Pro System

The patented Pellet Pro System makes it possible to burn any grade of pellet fuel for maximum heat and efficiency.

Quadra-Fire® Four-Point Burn System

Quadra-Fire wood stoves, inserts and fireplaces are famous for the patented “four-point” Quad Burn combustion system. Four combustion cycles extend the heat, enhance the fire and increase efficiency for durable, long-lasting performance.

Zone Heating

Put the heat where you need it most with Zone Heating. This climate control technology provides homeowners with the option to redirect heat output to specific areas of the home, improving heating efficiency. With the Heat-Zone technology, a fan system draws air from around the firebox and pushes it to designated rooms through Heat-Ducts. And by heating only the rooms you want, you save money and energy.