What is air-wash technology?
Stoves using air-wash technology are designed to draw air over the inside of the window to improve primary combustion, burning the wood at higher temperatures and more completely. Air-wash technology also helps to keep the window clean.
What is a secondary combustion chamber?
The initial burning in a stove takes place in the primary combustion chamber. In the new superior stoves, a secondary chamber is linked to the primary chamber via a series of nozzles, drawing in the hot air and reigniting it to burn off most of the harmful gases, especially particulates and carbon monoxide. The secondary combustion process also causes more heat, and consequently, the stove needs less fuel, making it more energy-efficient, in addition to emitting cleaner exhaust gases.
In some cases, afterburners are used to burn the hot air again to increase the heat further and burn off more of the gases.
How are the advanced modern stoves ventilated?
An advanced modern wood-burning stove is ventilated by specially designed flues that enhance the burning efficiency of the stove, draw fresh air from outside for combustion without cold air entering the room, prevent backdrafts into the room, and expel the low level of unburnt gases safely into the atmosphere.
Some stoves have unique fans that force cold air down the flue, working almost like the bellows on a furnace, without any of the cold air entering the room.
Which fuel should I use in my new, compliant wood-burning stove?
Coal and unseasoned wood are being phased out as from February 2021 and may not be used in domestic stoves or open fires as from 2022.
You have a wide choice of cleaner fuels, such as properly seasoned wood, wood pellets or chips and briquettes.