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Chimney Liners

 
Old 11-10-2011, 10:44 AM
  #1  
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Default Chimney Liners

Has anyone installed a stainless liner into a natural gas flue? What is the level of difficulty? I need to install a 5" flexible liner into an 8"x8" clay liner. The chimney is about 35' tall. The current quote is for $1500. The kits are about $600.

I'm trying to get more estimates, but this is the busy time of year for chimney sweeps. I noticed that my mortar is popping from the joints and there is efflorescence on the brick. In other words, it is raining in my flue.
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Old 11-10-2011, 11:27 AM
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Default Re: Chimney Liners

found a few DYI on youtube, not exactly what you're looking for

http://www.youtube.com/watch?v=5OIcx...eature=related
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Old 11-10-2011, 12:57 PM
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Default Re: Chimney Liners

Originally Posted by Dogginator View Post
What is the level of difficulty? .
for an engineer or regular folk?
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Old 11-10-2011, 02:04 PM
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Default Re: Chimney Liners

how do you like your co poisoning?
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Old 11-10-2011, 02:10 PM
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Default Re: Chimney Liners

People still use Chimneys?

Mind=Blown.
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Old 11-10-2011, 02:17 PM
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Default Re: Chimney Liners

You have a Phd in engineering I'm not sure you'll be able to pull this off
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Old 11-10-2011, 03:50 PM
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Default Re: Chimney Liners

Oh dear lord. Answer the question.

This is an art that requires special equipment. The chimney sweeps are busy this time of year, so getting someone to do it is problematic.
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Old 11-10-2011, 04:12 PM
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Default Re: Chimney Liners

That's a really good price, that exactly what I paid for mines 2 years ago, its a 3 story house.
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Old 11-10-2011, 04:30 PM
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Default Re: Chimney Liners

dogg where abouts do you live?
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Old 11-10-2011, 10:03 PM
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Default Re: Chimney Liners

I can ask my brother tomorrow who does Masonry work. You are right this is the busy season for them. My bro has been putting in over time for the last month.
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Old 11-11-2011, 05:03 AM
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Default Re: Chimney Liners



Fortunately, this is not critical and could wait until spring, as the chimney draws fine. A house built in 1940 has a chimney designed for a furnace that is far less efficient than my 80,000 BTU 1990 unit.

I'm calling more places today to see if I can find some luck.

@kiwibird82: We all can't live in Tucson.
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Old 11-11-2011, 05:10 AM
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Default Re: Chimney Liners

Originally Posted by Dogginator View Post
Oh dear lord. Answer the question.

This is an art that requires special equipment. c.
why don't you just fabricate the equipment!

or, close the flu, seal the edges, and sea foam it!
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Old 11-11-2011, 05:26 AM
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Default Re: Chimney Liners

@DaZman69!: Apparently you think that I said something that I did not. Now stop acting like a moron.
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Old 11-11-2011, 05:29 AM
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Default Re: Chimney Liners

Sry It shouldn't be all the bad. I installed one once with my dad years and years ago. I'll ask him how hard it is when I see him next if I remember.
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Old 11-11-2011, 05:31 AM
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Default Re: Chimney Liners

Originally Posted by Dogginator View Post
@DaZman69!: Apparently you think that I said something that I did not. Now stop acting like a moron.
calm down, poking fun at engineers
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Old 11-11-2011, 05:34 AM
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Default Re: Chimney Liners



My largest concern is being 40' in the air while doing it. Plus I'll most likely have the flue down for two days, which makes for an unhappy wife.
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Old 11-11-2011, 05:45 AM
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Default Re: Chimney Liners

don't have a chimney in my house, but how did people do it 100 years ago?

can't you just buy a chimney brush, make your own 35 foot pole with 7 extensions to clean it?

also why a 5" pipe? why not an 8"

as for mortar, grind out the old mortar and replace with new, kind of a PITA, someone will most likely charge a lot for labor to re-mortar it
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Old 11-11-2011, 05:53 AM
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Default Re: Chimney Liners

An 8"x8" liner is a bit large for my furnace, especially with a chimney on the side of the house. With the higher efficiency, the flue gas is cooler and the contained water is closer to the saturation point. There is a lot of water in flue gas (CH4+O2->H2O+CO+CO2). If the water condenses in your chimney, it deteriorates the mortar between the clay tiles and eventually leads to water condensing behind your brick. When freezing and thawing occurs, the mortar joints on the outside are damaged. You can keep repointing the mortar, buy the problem will occur again. A chimney liner will lead to greater draw (higher flue gas velocity) due to the smaller cross section, some thermal insulation, and less condensation. Plus a stainless steel liner is not going to deteriorate or leak.

Modern high efficiency furnaces actually condense the water in the flue gas because they cool it so much. That is why they have a PVC flue that simply exits the side of the house.
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Old 11-11-2011, 01:02 PM
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Default Re: Chimney Liners

Originally Posted by Dogginator View Post
Modern high efficiency furnaces actually condense the water in the flue gas because they cool it so much. That is why they have a PVC flue that simply exits the side of the house.
so why not wait till next year and replace your furnace? i would hazard a guess that a nineties open flued gas burner would only be 65/70% efficient at best whereas a condensing boiler on average runs at 90/92% efficient.

heating eng.
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Old 11-11-2011, 01:37 PM
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Default Re: Chimney Liners

Originally Posted by DaZman69! View Post
can't you just buy a chimney brush, make your own 35 foot pole with 7 extensions to clean it?
lol, it's called two guys, a rope, and a chimney brush.
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Old 11-11-2011, 01:40 PM
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Default Re: Chimney Liners

I don't know a whole lot about gas furnaces, but have done a fair share of chimney work.

Do gas furnaces have a power vent that vents to the chimney?
How does the exhaust get from the furnace to the chimney now? 8" diameter piping?
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Old 11-11-2011, 02:47 PM
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Default Re: Chimney Liners

Originally Posted by Penfold View Post
lol, it's called two guys, a rope, and a chimney brush.
thought you might need to twist it
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Old 11-11-2011, 05:04 PM
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Default Re: Chimney Liners

Originally Posted by Penfold View Post
I don't know a whole lot about gas furnaces, but have done a fair share of chimney work.

Do gas furnaces have a power vent that vents to the chimney?
How does the exhaust get from the furnace to the chimney now? 8" diameter piping?
Some have a power vent. Mine does not. My hot water heater and furnace feed into the chimney with a 3" and 5" vent pipe, respectively.

@jordan408: The thought has crossed my mind. I'd still need a liner for the chimney for the hot water heater.
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Old 11-12-2011, 06:40 PM
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Default Re: Chimney Liners

My brother says the price for the job is about standard. The job can be an easy 2 hours if the pipe is straight down but if not it could take as long as 2 days. He said with a good connection you could get the liner for around $250.

If it is a natural gas furnace you could get an aluminum liner which it will be cheaper but you would have to replace it in 10 to 12 years due to rust.
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Old 11-12-2011, 09:07 PM
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Default Re: Chimney Liners

Originally Posted by CrashAndBurn View Post
If it is a natural gas furnace you could get an aluminum liner which it will be cheaper but you would have to replace it in 10 to 12 years due to rust.
aluminum does not rust
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