What Is A Red TAG?
What is a red tag?
Cracked Heat Exchanger. Red Tag. Many Ottawa homeowners who have had their furnace red tagged know how stressful and unpleasant that situation is; just go online and you will see plenty of horror stories of Ottawa customers whose units have been red tagged.
So, What is a red tag?
It is surprising that many Ottawa homeowners, who have Furnace Maintenance performed, do not know that a gas technicians has the authority to, quite literally, turn your furnace off, based on their findings of a dangerous or unsafe condition.
The most common reason for a red tag is a Cracked heat exchanger.
First off, what is a Heat Exchanger? “It is a device used to transfer heat between a solid object and a fluid” - Wikipedia
In other words, a heat exchanger is used like a radiator, when it heats up, it radiates the heat upwards. But, when there is a crack, the source of the heat (flames) can start eating at the cracked metal causing the constant release of CO and radiation of this toxin throughout your home...this is of course, in theory.