On 14 Mar 2007 10:58:14 -0700, firstname.lastname@example.org wrote:
Absolutely not for safety reasons.
One of the biggest scams of the hvac business hoodlums is telling
customers that the crack in their heat exchanger is dangerous and shut
down the system.
Since time began, no one has been made sick or died because of a
cracked heat exchanger. Don't let those crooks tell you otherwise.
Did you know that there are tens of millions of americans that are
burning fuel with 100 percent of the combustion byproducts being
released inside the living quarters. You ever hear of coleman stoves
or room heaters or wall furnaces?
Did you know that because the pressures involved just about guarantee
that none of the combustion fumes from a cracked heat exchanger enter
If you know of a crooked hvac person that actually shuts down the
system with cracked heat exchanger, report him widely as a dishonest
person. He is just trying to rob you and has the morals of a snake.
Around here they're legally required to tag it and notify the gas
company. It then has to be replaced in 30 days or the gas will be shut off.
The guy that inspected the furnace in the house that we bought last fall
noted that it was bad, but didn't tag it because it would cause all
sorts of hassles right during the ownership transfer period.
I can't...its not available online, and it costs about $180 for a copy.
Note that I'm up in Canada.
The guy who did our furnace inspection mentioned that he would do the
replacement install if we wanted but he normally doesn't do installs.
He also didn't make any specific recomendations as to who we should get
to do the install.
After some more digging, I did find something. See the "Red Tag
Program" link at:
It looks like its even more stringent than I thought. According to that
document, a cracked heat exchanger is technically considered a
"hazardous condition". This requires either immediate repair or else
turning off the gas to the appliance and notifying the gas utility.
Chris, did you read the next part (low risk condition) where it
says that you do NOT turn off the gas if there is no co2 being
released into the building and there is no flame roll out?
In that case you just notify the owner and attach your tag. You do
NOT turn off the gas to the appliance!
I strongly advise everyone to get a co2 detector and the repairman to
check out co2 levels of any home with a suspect appliance.
But I also warn consumers of HVAC service that you NEVER let them
touch your gas shutoff valve - cracked heat exchanger or not - unless
they can show you code verse that gives them that authority.
What is more likely at play is that they are robbing you blind.
And I must say that code is not pure. Often the very crooks that
steal from consumers are the same ones that provide the code to the
city/county parish or other licensing authority.
And finally, if they pull something on you, then get a lawyer and sue
their ass for fraud and deceptive trade practice. It costs you
nothing as the consumer laws provide the crooks to pay attorney fees.
Please spend some time and research the difference between CO
and CO2. Yes, there is a difference.
I havn't any links, but I've heard from people I respect that
a cracked heat exchanger can put enough carbon monoxide into the
home to be dangerous. You'll have to figure out what's the
chemical symbol of carbon monoxide, adn what's the other spelling
Christopher A. Young
You can't shout down a troll.
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