EcoClean Chimney


Furnace Liner

What is a furnace liner

Many older homes in Colorado have a furnace and hot water heater that vents through a pre existing chimney. This is a hazardous situation for the homeowner because gases running through an old chimney can penetrate cracks in the brick and mortar and seep into the home. This increases the risk for carbon monoxide poisoning to occur inside the home.

A furnace liner is installed to protect your home from poisonous fumes and destructive gasses. It is made from an aluminium material and is installed in the chimney to direct gases from the furnace and hot water heater safely away from living areas. The chimney flue without a liner will allow gases to penetrate through the tiles. A liner works to ensure that the exhaust gasses cannot escape from the chimney and into the home.

Older chimneys were not designed to be used as a furnace flue for todays furnaces. The tile, brick and mortar erode over years and become porous, the gases will soak into the tiles and cracks in the brick and mortar and into the home. As furnaces become more efficient and burn more gas, less gas travels through the flu. Many would think that this is beneficial to the situation but in fact, this causes temperatures in the flue to drop low enough to create condensation. The water created by condensation, combines with acids in the flue to create an acidic moisture which eats away at the bricks and mortar, faster than normal.

The new building codes for heating and air conditioning require a liner be installed if the furnace is using a chimney to exhaust the gasses from the home. The cost of an 8" liner ranges from $900.00 to $1500.00. Its an investment that adds value to your home and keeps your family safe from hazardous gases.

EcoClean Furnace Liner Install

If your furnace is currently venting through your chimney, give EcoClean a call today 720-299-7782. An EcoClean chimney technician will come out for free to assess the situation and provide you with the lowest price available to get the job done right. A furnace liner will then be installed in the chimney, and your house will be brought up to current HVAC codes.

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