FAQ - Frequently-asked questions
See all the answers to frequently-asked questions. It may be the quick way to find the solution to your query.
Yes, an external air inlet is mandatory and serves to guarantee proper operation of the stove or fireplace, and the latter must be able to use the necessary combustion air from the external air inlet.
The air inlet must:
- have a total free section with dimensions greater than or equal to those specified in the “TECHNICAL DATA” paragraph;
- be protected with a grille or other suitable protection, provided it does not reduce the specified minimum section;
- be positioned in such a way as not to be obstructed.
It is essential that the adjacent room, from which the air is drawn, is not placed into a lower pressure status compared to the external environment, due to a reverse draft caused by the presence in that room of another appliance which uses draft or a suction device.
The air flow required for the firebox can be obtained in various ways:
- via a direct air inlet to the installation room (it is advisable to place the air inlet behind the firebox so that the air can warm up before flowing into the room through the hood grid;
- with ducting through pipes direct to the installation room, increasing the recommended minimum cross section by at least 15%;
- from a room adjacent to the installation room provided that the flow can take place freely through permanent openings connected to the outside
Yes, it is possible to connect an external air inlet directly to the fireplace or stove with ducting, consisting of flexible pipes. Airtight appliances are already set for this; for the others, you only need to order the appropriate kits for connecting to an external air inlet.
With airtight wood stoves, moreover, oxygen in the installation room is not used and consumed for combustion. The air is drawn directly from the outside and there is no longer any need for traditional grilles or air vents, that cause cold air to cross the room.
Nowadays, you can connect the external air inlet directly to the stove through a small pipe: in this way, the combustion efficiency increases and the inevitable drafts are eliminated. Airtight wood stoves are suitable for any type of setting and the ideal solution in passive houses where it is not possible to create openings or traditional air inlets to the outside.
It is forbidden to draw combustion air from adjacent rooms used as a garage, storeroom for combustible materials, or used for activities involving fire risks.
