Gas stoves for conventional flues
If you have a gas stove for conventional flues, then you will need a functioning chimney, which is fitted with a flue. This is because this type of gas stove expels exhaust gases using a flue.
In case you don’t have a chimney, you will need to fit a twin wall system.
Your gas stove should specify what size diameter flue is required for you to install it. This is usually 5 inches, though you should always check before you buy one.
Balanced flue gas stoves
Balanced flue gas stoves are very popular in homes without chimneys. They are designed for use with gas only, not solid fuel.
A balanced flue gas stove requires you to have two pipes fitted to the outside of your home. One pipe draws in the fresh air, whilst the other expels waste fumes. Balanced flue gas stoves are highly efficient.
Some balanced flue gas stoves come with the required flue parts, while others require you to buy them separately.
In most cases, installing a balanced flue is easy. They can be fitted horizontally through almost any external wall. If you only have internal wall space to put your stove against, you might still be able to fit one – it will just take some extra work.