Do you Need a Chimney Liner?

If you’re upgrading your furnace, you’re taking an important step toward gaining greater energy efficiency and comfort for your home.  But, did you know that choosing and sizing your new furnace is only part of the solution?  If you are having a new energy-efficient furnace installed in your home, you need to make sure that your existing chimney is adequate for your revised HVAC equipment.

Here’s why it’s important:  High efficiency furnaces squeeze more of the heat content generated out of the equipment and put it into your home or business to gain that extra efficiency.  Basically, this means that the heat produced will stay in the furnace and not escape up the chimney.  Even if the chimney is properly designed for the former unit, this means that conditions will change for the revised system.  The flue gas temperature can be lower and less buoyant.

Unfortunately, most existing masonry chimneys are too large to create a proper draft for today’s high efficiency furnaces.  Depending on their age, they are also probably not in good enough condition to withstand use with high efficiency HVAC equipment.  Since the temperature of the gas leaving this equipment is lower, it tends to condense on the inside wall of a masonry, clay-tiled chimney.  This liquid can result in caustic substances, which eats away at the clay tile over time.  These corrosive effects  can eventually allow dangerous gases such as carbon monoxide to ultimately leak in the living areas of the home and cause damage to your existing chimney.  These problems can even occur if your new hi-efficiency furnace is totally vented outside, but leaves any other older appliances like a hot water heater vented into the existing chimney.

So, old chimneys can be  too large to create a proper draft, cannot withstand lower gas temperatures and present a possible health hazard.  Does this mean you need to replace your chimney when you upgrade to a high efficiency furnace?  In most cases, no.  The solution to the problem is to line the chimney with a metal chimney liner which will protect the walls of the masonry chimney and provide a proper draft for optimum efficiency.

Metal chimney liners are primarily used to upgrade and repair existing chimneys.  These liner systems are U.L. tested and listed, and if properly installed and maintained are extremely safe and durable.  Stainless steel is suitable for wood burning, gas, or oil applications, while the aluminum is an inexpensive alternative for certain medium efficiency gas applications only.  It is usually required that high temperature insulation be used in conjunction with the liners for better safety and performance.

Liners in chimneys serve three main functions:

1.  The liner protects the house from heat transfer to combustibles.  Tests reveal that unlined chimneys allow heat to move through the chimney so rapidly that the adjacent woodwork will catch fire in only 3 1/2 hours.

2.  Liners protect the masonry from the corrosive byproducts of combustion. If the flue gases are allowed to penetrate to the brick and mortar, the result would be a reduction in the usable life of the chimney.  The flue gases can be acidic in nature and literally eat away at the mortar joints from inside the chimney.

3.  Liners provide a correctly sized flue for optimum efficiency of appliances.  Modern wood stoves and gas or oil furnaces require a correctly sized flue to perform properly.  An incorrectly sized liner can lead to excessive creosote buildup in wood burning stoves, and the production of carbon monoxide with conventional fuels.

So, make sure your contractor performs a chimney inspection before installing your new high efficiency furnace.  These components work together to ensure the efficient and safe operation of your HVAC system.

88 thoughts on “Do you Need a Chimney Liner?

  1. Hi! I know this is somewhat off topic but I was wondering if
    you knew where I could locate a captcha plugin for my comment form?
    I’m using the same blog platform as yours and I’m having difficulty finding one?
    Thanks a lot!

  2. Definitely believe that which you stated. Your favorite justification seemed to be
    on the web the simplest thing to be aware of.
    I say to you, I definitely get annoyed while people think about worries that
    they plainly don’t know about. You managed to hit the nail upon the top
    and also defined out the whole thing without having side-effects , people
    can take a signal. Will probably be back to get more. Thanks

  3. I know this web page presents quality based
    articles and other material, is there any other web site which provides such data in quality?

  4. Thanks , I’ve recently been searching for information approximately this subject for a while and yours is the best I’ve discovered till now.
    However, what about the bottom line? Are you certain about the source?

  5. I am extremely impressed with your writing skills and also
    with the layout on your weblog. Is this a paid theme or did you modify it yourself?

    Anyway keep up the excellent quality writing, it’s rare
    to see a nice blog like this one nowadays.

  6. I don’t even know how I ended up here, but I thought this post was good.
    I do not know who you are but definitely you are going
    to a famous blogger if you aren’t already 😉 Cheers!

  7. Hello, Neat post. There is a problem with your web site
    in internet explorer, would check this? IE nonetheless is the marketplace leader and a
    good portion of people will leave out your excellent writing because
    of this problem.

  8. I just want to say I’m all new to weblog and really loved you’re blog site. Very likely I’m planning to bookmark your blog post . You amazingly have perfect stories. Many thanks for sharing your webpage.

  9. I feel like I’m constantly looking for interesting things to read about a variety of subjects, but I manage to include your blog among my reads every day because you have compelling entries that I look forward to. Here’s hoping there’s a lot more amazing material coming!

  10. I discovered your blog site on google and also check a few of your very early articles. Continue to maintain the great run. I just extra up your RSS feed to my MSN Information Visitor. Looking for onward to finding out more from you later on!?

  11. I discovered your site website on google and appearance several of your early posts. Continue to keep on the very good operate. I recently additional your Feed to my MSN News Reader. Looking for toward reading far more from you afterwards!…

  12. Aw, this was a really wonderful article. In suggestion I would love to put in writing similar to this in addition? taking time as well as actual initiative to make a very good write-up? yet what can I state? I hesitate alot as well as never seem to get something done.

  13. This is the best blog for any person who intends to learn about this topic. You recognize a lot its virtually difficult to say with you (not that I actually would want?HaHa). You certainly placed a brand-new spin on a topic thats been blogged about for many years. Excellent things, simply fantastic!

  14. There are some interesting times in this short article however I don?t understand if I see all of them center to heart. There is some credibility yet I will hold viewpoint till I consider it further. Great short article, thanks as well as we desire extra! Included in FeedBurner as well

  15. The next time I read a blog, I really hope that it does not dissatisfy me as long as this one. I suggest, I know it was my choice to review, however I actually assumed youd have something intriguing to state. All I listen to is a lot of whimpering concerning something that you could repair if you werent too hectic looking for focus.

  16. There are absolutely a great deal of information like that to take into consideration. That is a terrific point to raise. I provide the ideas over as general motivation but plainly there are inquiries like the one you bring up where the most crucial point will certainly be operating in honest good faith. I don?t know if finest practices have arised around points like that, but I make sure that your job is plainly identified as an up for grabs. Both young boys and women feel the effect of just a moment?s enjoyment, for the rest of their lives.

  17. What’s Taking place i am new to this, I stumbled upon this I’ve
    discovered It positively helpful and it has helped me out loads.

    I am hoping to give a contribution & aid other customers like its helped me.
    Great job.

  18. I am the business owner of JustCBD Store label (justcbdstore.com) and I am currently seeking to expand my wholesale side of business. I really hope that someone at targetdomain is able to provide some guidance ! I considered that the most suitable way to do this would be to reach out to vape stores and cbd stores. I was hoping if anyone could recommend a reputable site where I can buy Vape Shop Business Leads I am already looking at creativebeartech.com, theeliquidboutique.co.uk and wowitloveithaveit.com. Unsure which one would be the most suitable selection and would appreciate any advice on this. Or would it be easier for me to scrape my own leads? Suggestions?

  19. This is the right blog site for anybody that wants to learn about this topic. You realize so much its virtually difficult to say with you (not that I in fact would want?HaHa). You absolutely placed a brand-new spin on a subject thats been written about for many years. Great stuff, simply terrific!

  20. I?m satisfied, I should claim. Really rarely do I experience a blog site that?s both informative and also entertaining, and also let me tell you, you have actually struck the nail on the head. Your idea is impressive; the issue is something that insufficient people are speaking smartly about. I am very pleased that I came across this in my search for something connecting to this.

  21. Nice article. I discover something a lot more difficult on different blog sites day-to-day. It will certainly always be stimulating to read content from various other writers and practice a something from their store. I?d choose to use some with the content on my blog whether you don?t mind. Natually I?ll provide you a web link on your web blog. Thanks for sharing.

  22. Hello there! I just want to give a huge thumbs up for the terrific details you have right here on this blog post. I will be coming back to your blog site for even more quickly.

  23. An impressive share, I simply offered this onto a colleague that was doing a little analysis on this. And he actually acquired me morning meal due to the fact that I located it for him. smile. So let me rephrase that: Thnx for the treat! However yeah Thnkx for spending the time to discuss this, I feel strongly concerning it and like learning more on this topic. Ideally, as you become competence, would certainly you mind updating your blog site with even more details? It is highly practical for me. Big thumb up for this blog post!

  24. Thanks for ones marvelous posting! I truly enjoyed reading
    it, you could be a great author. I will ensure that I bookmark
    your blog and may come back very soon. I want to encourage continue
    your great job, have a nice weekend!

  25. I?d have to talk to you below. Which is not something I generally do! I appreciate reviewing a blog post that will make individuals think. Also, thanks for enabling me to comment!

  26. Yesterday, while I was at work, my sister stole my iphone and tested
    to see if it can survive a 25 foot drop, just so she can be a youtube sensation. My
    iPad is now destroyed and she has 83 views. I know this is entirely
    off topic but I had to share it with someone!

  27. When I originally commented I clicked the -Inform me when new remarks are added- checkbox as well as now each time a comment is included I get four emails with the very same comment. Is there any way you can remove me from that solution? Thanks!

  28. Aw, this was a truly nice blog post. In suggestion I wish to place in writing such as this furthermore? taking some time as well as actual effort to make a great write-up? but what can I claim? I hesitate alot as well as never seem to obtain something done.

  29. That is a very good tip particularly to those fresh to the blogosphere. Brief but very accurate info… Many thanks for sharing this one. A must read article!

  30. Your style is unique compared to other people I’ve read stuff from. Many thanks for posting when you have the opportunity, Guess I will just book mark this web site.

  31. A motivating discussion is definitely worth comment. I believe that you should write more about this subject matter, it might not be a taboo subject but generally people do not talk about these topics. To the next! Many thanks!!

  32. You’re so interesting! I do not think I’ve read something like this before. So nice to find another person with genuine thoughts on this subject matter. Seriously.. many thanks for starting this up. This site is something that is needed on the internet, someone with a bit of originality!

  33. Pretty component to content. I just stumbled upon your weblog and in accession capital to claim that I acquire in fact enjoyed account your
    weblog posts. Any way I will be subscribing on your feeds and
    even I success you get admission to consistently rapidly.

  34. This web site is truly a walk-through for every one of the details you wanted concerning this and didn?t understand that to ask. Look below, and you?ll absolutely discover it.

  35. After I initially commented I seem to have clicked the -Notify me when new comments are added- checkbox and now every time a comment is added I recieve four emails with the same comment. Perhaps there is an easy method you are able to remove me from that service? Kudos!

  36. Hi there would you mind stating which blog platform you’re using? I’m going to start my own blog soon but I’m having a hard time deciding between BlogEngine/Wordpress/B2evolution and Drupal. The reason I ask is because your design and style seems different then most blogs and I’m looking for something unique. P.S My apologies for being off-topic but I had to ask!

  37. An outstanding share! I have just forwarded this onto a friend who had been conducting a little homework on this. And he actually ordered me dinner due to the fact that I stumbled upon it for him… lol. So let me reword this…. Thank YOU for the meal!! But yeah, thanks for spending some time to discuss this matter here on your website.

  38. I?m amazed, I should claim. Really rarely do I come across a blog site that?s both educative as well as enjoyable, and also let me tell you, you have struck the nail on the head. Your suggestion is superior; the problem is something that not nearly enough individuals are speaking smartly about. I am very pleased that I stumbled across this in my search for something associating with this.

  39. Howdy just wanted to give you a quick heads up and let you know a
    few of the pictures aren’t loading correctly. I’m not sure
    why but I think its a linking issue. I’ve tried it
    in two different web browsers and both show the same outcome.

    my site; JaBHeronemus

  40. Youre so amazing! I don’t expect Ive review anything similar to this prior to. So good to locate somebody with some original ideas on this subject. realy thanks for beginning this up. this website is something that is required on the web, somebody with a little creativity. valuable job for bringing something new to the net!

  41. This design is wicked! You definitely know how to keep a reader entertained.
    Between your wit and your videos, I was almost moved to start my
    own blog (well, almost…HaHa!) Fantastic job. I really loved what you had to say,
    and more than that, how you presented it. Too cool!

  42. Woah! I’m really loving the template/theme of this blog. It’s simple, yet effective. A lot of times it’s very hard to get that “perfect balance” between superb usability and appearance. I must say that you’ve done a amazing job with this. In addition, the blog loads super fast for me on Safari. Exceptional Blog!

  43. Hey! Someone in my Myspace group shared this site with us so I came to give it a look. I’m definitely enjoying the information. I’m book-marking and will be tweeting this to my followers! Excellent blog and brilliant style and design.

  44. Do you have a spam problem on this website; I also am a blogger, and I was curious about your situation; many of us have developed some nice practices and we are looking to trade solutions with other folks, why not shoot me an email if interested.

  45. Hello there, I believe your website might be having internet browser compatibility problems.
    When I look at your blog in Safari, it looks fine however when opening in IE, it’s got some overlapping issues.
    I merely wanted to provide you with a quick heads up! Other than that, wonderful blog!

  46. Oh my goodness! an incredible post dude. Thanks Nevertheless I am experiencing problem with ur rss. Don?t recognize why Incapable to sign up for it. Is there any individual getting similar rss trouble? Any person who understands kindly respond. Thnkx

  47. What’s up every one, here every person is sharing such familiarity, therefore
    it’s pleasant to read this webpage, and I
    used to go to see this web site daily.

  48. Its like you read my mind! You seem to know so much about this, like you wrote the book in it or something.
    I think that you could do with some pics to drive the message home a little bit, but other than that, this is wonderful blog.
    A fantastic read. I’ll certainly be back.

  49. Aw, this was a truly great post. In idea I would love to put in composing such as this furthermore? taking time and real initiative to make an excellent write-up? however what can I claim? I procrastinate alot as well as never seem to obtain something done.

  50. Great message. I discover something more challenging on various blog sites daily. It will certainly constantly be stimulating to review web content from various other writers and also exercise a little something from their shop. I?d favor to utilize some with the content on my blog site whether you don?t mind. Natually I?ll provide you a link on your internet blog. Thanks for sharing.

  51. An interesting conversation deserves remark. I believe that you need to write a lot more on this subject, it may not be a frowned on topic yet generally individuals are not nearly enough to talk on such topics. To the next. Thanks

  52. I am curious to find out what blog platform you’re working
    with? I’m experiencing some small security problems with
    my latest website and I would like to find something more secure.
    Do you have any solutions?

  53. The next time I check out a blog, I wish that it does not dissatisfy me as much as this set. I imply, I recognize it was my choice to read, however I really believed youd have something intriguing to claim. All I hear is a bunch of whimpering about something that you could fix if you werent too active searching for focus.

  54. I uncovered your blog website on google and inspect a few of your very early posts. Remain to keep up the excellent run. I just added up your RSS feed to my MSN Information Visitor. Looking for forward to finding out more from you in the future!?

  55. Youre so awesome! I do not suppose Ive check out anything similar to this prior to. So great to find someone with some initial ideas on this subject. realy thanks for starting this up. this internet site is something that is required online, a person with a little originality. beneficial task for bringing something new to the web!

  56. A motivating discussion is definitely worth comment. There’s no doubt that that you need to write more about this topic, it might not be a taboo subject but generally people don’t talk about these topics. To the next! All the best!!

Comments are closed.

Font Resize
Contrast