The first is the blanket wrap. A well maintained and insulated chimney liner can also prevent extreme heat from a chimney fire from spreading through your chimney's masonry structure and possibly into your house or attic where it could ignite combustible materials. Fortunately, you can keep your own chimney liner clean using only a few common tools. © 2018 Rockford Chimney Supply. The liner itself averages a cost of $65 per foot, but with labor and other installation factors you will pay around $100 per foot. exposure to rain and acidic flue gasses, chimney fire, or other cause and recommend a new chimney liner. You are not required to insulate your chimney liner if you are venting gas or oil, though it is always recommended. We make our stainless liners and components in-house from the best alloys of stainless steel. This can usually be determined by BTUs (or check the manufactures instructions for a furnace) and the cross sectional area of the fireplace opening, or by matching the exhaust size of the wood insert or stove. Using DuraLiner eliminates the need to uncoil flex, insulate a majority of the pipe or protect the insulation while installing and it reduces installation time by up to 50%. If a chimney is not cleaned, it will accumulate soot, dirt and dust, which will cause many problems. This leaves no room for a wrap around insulation. This insulation is wrapped around the liner before installing the liner into the flue, and will add approximately 1.5" to the overall dimensions of the liner. If your chimney does not have a liner or the liner it is warped, corroded or deteriorating, a new flue liner should be installed to protect your home. Monday, March 23 rd, 2015. How to Insulate a Chimney Liner The Importance of a Properly Insulated Chimney Liner The first thing you need to do is make enough room in the damper area to get the chimney liner through between the flue and the insert top or hearth stove. I have never gotten more than a couple of cups of creosote dust out of it. See all DuraVent Chimney … Additionally, chimneys may clog from accumulated debris. Some prefer this method, and this option works well when trying to insulate a liner in a tight fitting flue. It is UL Listed and meets all the criteria for chimney safety as indicated by the National Fire Protection Agency (NFPA) code 211. When you are converting your wood burning fireplace to a gas burning fireplace and using the existing chimney as a vent, it is a good idea to install a flexible aluminum liner. The second is a vermiculite and concrete insulation mixture, which is combined with water and poured down between the liner and flue walls. It is usually required that high temperature insulation be used in conjunction with the liners for safety and performance considerations. Does an Oil Furnace Need a Chimney Liner?. Insulating an oil or gas flue liner will lessen the amount of corrosive condensation by keeping the gases warmer, giving it a better draft. Part 2: Why is My Chimney Chase Cover Leaking? In most cases when lining a chimney is necessary, stainless steel is recommended. All Rights Reserved. Outside chimneys are more susceptible to the cold than chimneys built within the walls of a house. If your chimney flue is not insulated, whether you are venting a furnace or wood burning appliance, the easiest and most economical solution is to install an insulated stainless steel chimney liner inside your existing flue. Chimney contractors often prefer to use steel flue liners due to their relative ease of installation compared to tile liner installation, and the fact that unlike vitreous clay tile flue liners, stainless steel chimney liners … A new chimney liner will help insulate your chimney and keep the moisture out. The chimney is unsafe. Insulating your chimney liner enables the flue to heat up faster and to a higher temperature. Steel is the most popular and most highly recommended by chimney professionals. The products come in both rigid and flexible form. Chimney liner insulation is necessary along the entire length of the liner. In some locations, your city's fire code may mandate that you install such a liner if you're making any changes to or installing a wood-burning stove or fireplace. Having 1/2" thick insulation will maintain your liner to the UL1777 standard. It is very durable and has a superb fire safety rating. 601 6th Ave NW Part 3: Why is My Chimney Chase Cover Leaking? However building regulations do state that gases must be safely taken away from the building and by insulating your flexible flue liner, within the chimney cavity will ensure that the gases will travel directly up from the stove and out through the chimney top. The combustion of fuel from an oil furnace creates a corrosive by-product of unburned carbon and sulfur commonly known as soot. According to Chimneys.com, using poured insulation around a stainless steel chimney liner to get a zero clearance rating is just about impossible to do correctly. By wrapping the liner with insulation before you insert it into the flue, both tasks can be accomplished at the same time, or you can install the liner first and then add the pour down insulation into the space between the liner and the chimney flue. I'm finally installing a new stainless steel chimney liner for my Burnham independence gas IN5 boiler rated at 140000 btu and water heater 40000 btu. Also, you should get a new chimney liner when you decide to convert your fireplace. If your chimney flue is not insulated, whether you are venting a furnace or wood burning appliance, the easiest and most economical solution is to install an insulated stainless steel chimney liner inside your existing flue. Tel: 800-218-4947 A lower quality stainless steel chimney liners and pumice chimney liners generally have a 10-year guarantee. Masonry chimney flues are not insulated, unless an insulated liner has been installed. You should also insulate the liner to ensure that temperatures are kept constant and insulation also helps slow down the buildup of creosote. The company installing says they would like to put in a 6" liner. Chimney Liner Insulation. Creosote is an oily substance that accumulates inside the flue. Inside chimneys may only need insulation in the area that extends above the top of the roof, or inside an uninsulated attic, since the remainder of the flue is surrounded by an insulated house.Wood burning applications are where the greatest returns can be found. You can also make sure to waterproof your chimney to even further your chimney’s defense against moisture. The only regulation is concerning the gases that … You should also insulate the liner to ensure that temperatures are kept constant and insulation also helps slow down the buildup of creosote. Also, 304 stainless steel which is used for solid fuels such as wood, coal or pellets. Since furnace appliances need relatively small flues, if you are venting into a chimney with a clay liner, it's probably too large, which is already cooling the gases and deteriorating the clay liner and mortar with the corrosive condensation — just another reason for having an insulated stainless liner. If your chimney gets a lot of use, you will need to clean it out regularly, even if you have a stainless steel chimney liner. Plus the outer steel helps to protect and preserve the insulation, not just during installation but for the life of the product. It is always a good idea to insulate your flexible chimney liner. Just like a masonry chimney, a chimney that has been upgraded or repaired with a chimney liner still requires maintenance. Hello everyone, I'm once again in need of some information. If you have an oil or gas furnace, the exhaust that is produced typically has lower temperatures, since some of the heat is extracted for warming the house, and the exhaust gases will form condensation when they cool in the flue area. Three very good reasons we say "Yes, you need chimney liner insulation!" Our 316Ti flexible chimney liner and chimney liner components have passed the rigorous testing at the Underwriters Laboratories with best in class status and are UL Listed. If you burn wood in your fireplace or in a wood-burning stove, it's recommended that you have a stainless-steel liner to prevent overheating your chimney and risking a fire. Step 1 Just as important is to select the proper diameter liner. DIY Videos Chimney Liners, Caps, Dampers, Stove Pipe Install Videos, Articles & Info: Do It Yourself & Contractor Chimney Info, The Correct Direction to Install Wood Stove Pipe.
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