Make Up Air Kit For Fireplace

Outside air kits should be installed and used in accordance with requirements of the standard for fireplaces under national code nfpa 211.

Make up air kit for fireplace.

Fireplace air vent installation can sometimes be difficult to figure out which air intake vent kit is right for you. Install a makeup air kit from fantech or electro industries. There is other air that can be part of combustion air such as ventilation air which is used to ventilate or exhaust an appliance or fireplace and dilution air which mixes with the exhaust gases to dilute them. Follow manufacturer s instructions for installation instructions and refer to local building code for proper sizing.

This air comes from all the usual cracks around windows doors and framing members as well as through the ventilation intake ports. This would prevent depressurization and solve the smoky fireplace problem. Ul 127 standard says the cross sectional area of the air inlet must be 50 of the cross sectional area of the flue or 25 in 2 whichever is smaller. Make up air vent is the same thing as a fresh air intake vent.

In fact even in a house with an air leakage rate of 0 6 ach50 makeup air usually finds its way in to the house when a bathroom exhaust fan is turned on or when wood smoke goes up the chimney. The design of the fireplace itself plays a big role in the level of satisfaction it provides. This kind of makeup air system would force air into the house to compensate for the kitchen range exhaust flow. Incoming air can be heated with electric resistance strips.

Connect an outside air duct to the plenum on the furnace if the house has a forced air heating and cooling system. Proper research prior to installation is the key to simplifying the process. The fireplace has a fresh air vent in the hearth. These are through the wall systems that balance the amount of outgoing air with an equal amount of incoming air.

The chimney cap buying guide and the chimney pipe buying guide will help you find out what your options are and how. An 8 or 10 duct valve is closer to what you would need for make up air for an open hearth fireplace something comparable or larger in size to the cross sectional area to the flue. They assist your isokern fireplace in burning more evenly and help prevent back draft smoking caused by negative pressure from tightly sealed homes. This is not the same scenario as an air tight wood stove and more comparable to an atmospheric drafted furnace only bigger with greater volumes of dilution air than is used to control flue condensation with fossil burners.

Nutone interlocked make up air dampers provide outside air when required to keep the air in the home fresher by allowing the range hood to operate at optimum levels universal design works with any nutone range hood to balance indoor air pressure by providing interlocked make up air without requiring a direct wire connection between the range hood and the damper. The code also references make up air and inside air.