There may be circumstances in which a direct outdoor air supply is considered necessary. Unless you have a draft problem (difficult starts and backpuffing), an OAK probably will be of no value to you. This mostly takes the form of a four inch diameter hole in an outside wall with a duct attached running to the stove or fireplace, connected either directly to the firebox or to a location where it can be heated by the fire before entering the room. A leaky house envelope is no guarantee of successful venting. Jøtul Outside Air Adaptor 154335 must be used in these installations unless otherwise specified by the local code official. With the regular old fireplaces and pot belly stoves we kno… This alone will allow the home to be warmer by not changing the home to negative air pressure. Required for installation of these stoves in a mobile or modular home, this fresh air intake brings in fresh air from outside the living space directly into the burn chamber, providing a more efficient burn in tighter sealed homes. A remedial strategy that only works sometimes, and that may make the problem worse, is not a good strategy. A Stove with a direct air supply can take the air it needs for combustion via an air duct running outside. Provides outside air for our wood stoves, or any wood stove with a 3" outside air inlet. Note that this is the absolute minimum air change for healthy living and that most houses older than 20 years have natural leakage rates far higher than this in winter. Fireplaces and grills; Bowl dish and garden fireplace; Accessories; KitchenDealers. A ll stoves require adequate air for combustion and an external air kit provides air directly into the stove, without the need for an air brick. Air is ducted to the kit from outside, either through the wall behind the stove or under the floor. Since the air consumption of a wood stove is so low, the risk of reversal of a ducted combustion air supply outweighs any advantage gained by bringing air from outdoors. Wood Burning Stove; Inserts; Multifuel; Accessories; OutdoorDealers. If your local building code forces you to install outdoor air, you will have no choice, but be aware that it will not reliably improve the performance of your wood burning appliance or result in higher efficiency of the system. (2) 1-1/2” Wood Screws Right now, the air intake for the combustion chamber is at the bottom of the stove. Cold air intake for wood stoves By Dr Tom Chalko, MSc, PhD Mt Best, May 2012 Some people argue that there are no benefits for using outside cool air intake for wood stoves and that the best source of combustion air for wood stove is the room in which people live and try to heat. And I’ve talked to a lot of our neighbors – where we live, there’s lots of wood, so a lot of people heat with wood – and they all say that it would make a big difference if I … This Fresh Air Intake Kit from the PelletVent Pro series is a Type L Biofuel Chimney Pipe component and consists of the duralock system for a tight seal. Find many great new & used options and get the best deals for Outside Air Kit for Wood Stove at the best online prices at eBay! Laboratory and field reports have revealed that providing outdoor air is not a simple or effective cure for spillage, and that some designs could create a fire hazard. The European stoves in general do not seem to have a direct connection for the outside air duct--it's what the salespeople are calling "proximity" air, meaning a 3" duct from outside terminates very close to the stove, but does not connect. Wood burners consume combustion air in response to the amount of chimney draft produced by the heat of their own flue gases. The supposed benefits of outdoor air are not supported by research results. Passive air inlets are nothing more than holes in the wall. Forget about outdoor air supplies as a way to make wood stoves and fireplaces work better or be more efficient. Supplying outside air keeps your warm air in the room instead of sending it up the chimney to be replaced by cold drafts entering your space through cracks around windows and doors. The worst-case indoor air pressure environment can be measured using the house pressure test procedure, and can be controlled either by limiting exhaust flows or by installing a powered make-up air system. The kit consists of a flex pipe with a clamp, screening for the firewood compartment, a coupling with a damper and a casing. A stove with a direct air supply will have a spigot which allows you to connect it to an air duct which leads outside. All stoves in our range (except the Inset) can be fitted with an external air kit. Please contact us for more information. If there is any evidence of reversal, disconnect the duct and plug the hole in the house envelope. However, it is also possible for a passive supply to cause spillage if air is drawn out of the house into a low pressure zone caused by wind effects. If the weatherhood of a passive inlet is on the windward side of a building, wind pressure is likely to force air into the building; if the weatherhood is on the downwind side, the negative pressure zone created by the wind is likely to draw air out of the house, possibly depressurizing it. £ 110.00. While it is not always required to use an Outside Air Kit, it is highly recommended. Where necessary the indoor air pressure should be controlled to minimize depressurization. Outdoor combustion air in the Canadian national building code, Outdoor air in the Canadian installation code. Outside Air hook-up is great for air-tight homes, and mandatory for Mobile Homes. In fact, passive air supplies provide air only in response to pressure differences. Two forms of outdoor air supply have been used: passive make-up type air supplies and direct-to-combustion chamber air supplies. In the 1980s, when large exhaust systems – like downdraft kitchen range exhausts – began to cause spillage from fireplaces and stoves in reasonably tight houses, a consensus quickly formed around the idea of bringing combustion air from outdoors, just as had been done in mobile homes for decades. If, on the other hand, the passive inlet is located above the house neutral pressure plane, air will flow out. To enhance the burning cycle while using the wood stove, this is a perfect grate that will suit the barrel kit. 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