Because of the variances among stoves, there are many guidelines and regulations you must follow when installing a stove regardless of installing into an existing chimney or a new double chimney. Except these two conditions, there're are a few other conditions in total when installing the stove which we'll discuss about right now!
Today, I'll briefly introduce four main common stoves installing types that stove installers recommend.
1. Installing a stove into an existing unlined chimney, and into an existing chimney with clay liners. Espeically when you're in installing your stove into an existing chimney with clay liners, sometimes it is possible to connect straight into this set up. Sometimes with larger diameter clay liners, it is somethings better to drop a flexible liner down inside the clay liners to reduce the chimney diameter.
No matter what type you're, all wood burning stoves require a good chimney. Existing chimneys can be used unless they have been carefully checked for air tightness and the correct diameter for the appliance to be used. Of course, it's also necessary to clean the flue (which should always be done anyway before fitting a stove or lining a chimney) and furthermore, if necessary, to do a smoke test to check for gas tightness.
2. Installing a stove into a chimney using flexible liner. This type of installation is favored by most stoves installers. Flexible liner will ensure the life of your chimney is maintained. In addition, flexible liner heats up extremely quickly and ensures that the draught is up to a maximum very quickly.
3. Installing a stove using internal twinwall. It comes to installing a wood burner into a room that has no chimney or for a more contemporary stove that is designed to be freestanding up against a wall.
4. Installing a stove using an external twinwall. This type of installation is very trendy because most cast iron stoves customers don't want to see any or very little stove pipe within the room.
In a word, whatever type you choose, the key to a safe multifuel stoves installation is to maintain safe clearances around the stove and its pipes, and to use a venting configuration approved by the manufacturer.