Wall Air Vents For Gas Fires

One that expels gasses and another that draws in fresh air from the outside.

Wall air vents for gas fires.

Gas fires less than 7kw no air vent chimney precast flue liner cvo fire 2020 05 07t23 26 00 01 00 chimney gas fires 7kw. Unless you have a special type of flueless fire. You need another to supply fresh air to the fire to get correct combustion. If you don t have this your fire will create large quantities of dangerous fumes.

The purpose of a ventilator is to protect from rain vermin etc. Direct vent gas fireplaces require two vents in the back. The vent positioning is important as it must be installed over 1 metre away from the fire. The cheapest way to have a ventless fireplace in your home is with gel based units.

How do they work. Location of a flueless fire can be on an internal or external wall. Gas fireplaces include direct vent units that vent combustion gasses directly outside vent free units that use the indoor air to fuel the combustion process and vent safely into the room and units that replace existing masonry fireplace openings called fireplace inserts. There are no limitations like chimney position to consider.

Depending on the size of the kw heat input dictates how large the air vent needs to be. On a normal gas fire you need two vents. Usually your vent should be at least 100cm2 for a room up to 40 cubic metres. Hello if your gas fire is what we call a decorative basket effect gas fire then automatically gas regulations state a 100mm ventilation hole through the wall directly to outside air if the fire is classed as an inset or surface mounted gas fire and as soon as it is rated over 7killowatts of power then you will also need ventilation direct to outside the reason for this is that potentially if it was a cold winters night and you had a gas fire on in a room.

Flueless fires require an air vent leading from the room where it is located to the outside. This is a trickle of fresh air to replace the air that is being used by the fire. To make sure this air supply is replenished a vent is required along with a permanent openable window. Entering while allowing a measured amount of air to enter the room either for background or for combustion purposes.

One to get rid of the combustion products which are very dangerous. The air vent must provide a minimum amount of fresh air volume. These 7kw contemporary gas fires listed below have a power input rating of less than 7kw and do not require an air vent in the room and have a minimum flue size of 125mm pre cast or class 2 brick chimney. Your gas fire takes oxygen in from your room to burn.