In the case of vented gas logs they require a function code compliant chimney system.
Do i need a chimney liner for a gas fireplace.
The liner helps guide the combustion by products out and away from the chimney.
A chimney liner prevents the transfer of heat to combustible components of a building which surround the chimney.
A fireplace chimney should always be lined.
Clay tile cast in place and metal liners.
They retain the heat well and keep your chimney walls protected.
Do you have questions about your chimney and whether it needs a new liner.
Stainless steel chimney liners are extremely durable and perfect for wood burning fireplaces.
There are three main types of chimney liners.
A stainless steel chimney liner that is properly sized for the stove furnace or fireplace will maintain or improve the venting performance draft.
No you don t need a masonry chimney but for your most efficient gas units you will need a venting system though it does not always require venting through your roof.
If going to a smooth wall liner it will additionally improve your draft by up to 20 for gas and up to 15 for oil burning appliances.
Homeowners with gas or electric inserts most likely do not need a new liner because those types of fuel don t produce enough heat to damage a masonry chimney.
Both of these types of fuel generate heat through combustion and produce dangerous byproducts like carbon monoxide that must be properly vented typically through a chimney.
One of the main reasons why you need a chimney liner is because the liner provides extra protections to the chimney and fires are less likely to happen.
People often get a steel liner to upgrade from their old clay or ceramic one.
It s not 100 percent required all the time.
One for an oil furnace it s nice if it s lined.
Many ventless options may not require a chimney to exhaust the byproducts of combustion but some gas log sets still use and may require an existing chimney to dissipate the heat generated by burning.
Aluminum liners are very durable but are only suitable for gas fireplaces.
I would not use one if it wasn t lined.
The vast majority of homes heat their air and water using oil or natural gas.
One test showed that the heat in an unlined chimney caused the adjacent woodwork in a home to catch fire in just 3 hours.
Even one small crack in the liner can cause a house fire.
Another type of chimney liner is the aluminum liner.
A chimney professional can answer your questions and schedule an inspection for your home.