Should be OK. in fact that's exactly what I've got on my woodburner. Beyond 1.4 (4' 8") metres you must use twin wall insulated flue because of the excessive heat released from the single skin pipe which will naturally rise towards any combustible ceiling components. Poujoulat Chimney Systems Stocked - 01559 362847 Here at Trade Price Flues, we offer versatile options for those in need of twin wall flue pipe including our range of ready to go twin wall flue kits. You need to use twin wall flue going through the ceiling and on the outside. Twin Wall Flue Pipes. In the loft, it will likely need some type of mesh protection. Twist Lock, 25mm instillation, 316L inner, 304 outer. None of the bends should be more than a 45 degree angle, excluding the connection to the stove, which may be 90 degrees. ( and a stove!) If I can then can I revert to single wall after the ceiling is passed through or does the twinwall have to remain in the loft space and up through roof tiles? The quicker and less expensive solution is to install a twin wall stainless steel flue system. In order to find out if you need a twin flue, your chosen heating engineer will first need to calculate how many flue extensions, bends and brackets are needed for your boiler. Our Twin Wall flue pipes should be kept at a minimum of 60mm from combustible materials (other flues may differ on distance to combustibles). This guard should be further away from its designated distance to combustibles. A basic install would require the following: (this is just to give you an idea of what is required and may not be the same as the system you require to fit your stove) 1 – Stove 2 – Vitreous Enamel Flue Pipe 3 – 45 degree bend 4 – Single skin to twin wall insulated flue adaptor. The flue can be horizontal for a maximum of 450mm. Firstly, identify if you are taking your twin wall chimney out through the wall and running an EXTERNAL flue system up the side of your property. Ceiling Ring: 1 x: Locator Ring: 2 x: 50 x 50 Angles 915mm Long : 1 x: Installation Guide: Dimensions: 460(W) x 460(D) x 1150(H) mm 32kg. O. outcast New Member. Additionally, a single skin flue also needs to be a minimum of 150mm from a ceiling, roof or floor if any such surface is also combustible. ABOUT US. Any alternative advice would be appreciated. These liners should be used with wood and multi-fuel appliances. At Flue Supplies, we offer a variety of products, ensuring that you can find just the right system for your project's requirements. If you are installing a wood burning stove, boiler or gas appliance and you are planning to run your flue system either through a wall, a floor or externally you will need to use a twin wall flue system. The picture on the left shows vitreous pipe passing through a hole in the wall. The external wall of the building will need to be sleeved to allow the twin-wall pipe to pass through and decorative cover plates can be installed to offer an aesthetic look to the installation. Where twin wall flue passes through a cupboard, storage space or roof space a guard should be placed around it. Or are you planning an INTERNAL flue system passing through your ceiling and roof.. Identify the kits for a HOUSE or BUNGALOW depending on your property.. Then select the kit according to the spigot location on your stove ie TOP EXIT or REAR EXIT. That height will be determined by the pitch (angle) of your roof. The 6" Ventilation Shield fits between the ventilated firestop spacer and the underside of the ventilated ceiling support. If the flue exits the roof further down then it must extend high enough to achieve 2.3m of horizontal clearance. Hi, Looking to put a log burner in my conservatory and will need to fit a twin wall flue through the polycarb roof, how hot do the outsides of the twin wall flue`s get, and are they ok to just go straight through the roof? The twin wall flue has to be 50mm from any inflammable … You cannot revert to single skin flue pipe once twin wall has been used at any point in the flue system. We will get back to you as soon as possible. Generally, the twin wall flue will pass through the external wall at a 45° angle to assist with the smooth flow of gases and to allow the ease of sweeping the flue system at a later date. We stock ALL you need to complete your installation. Can use single wall between the stove & the ceiling and I'd recommend this as the flue itself emits quite a lot of heat too - no point in wasting it!! Next day delivery as standard or Collect from our sales counter. Note that I have protected the flue pipe with fireproof webbing (sticky back). David is Chairman and PR Manager of the Northern Ireland Association of Chimney Sweeps, trains chimney technicians North and South of the border, has worked closely with the Health and Safety Executive in the successful launch of it's Carbon Monoxide awareness campaign and has given … Twin wall flue pipe has a 1 inch layer of insulation around the pipe. You can also use fire … To install your wood burner in your shed you will need a hearth, some shielding, a flue kit and a few tools. no combustibles. If you're installing a flue liner or a twin wall flue system for a woodburning stove or gas appliance, you want the job to run smoothly. Measure and cut the second section of single wall flue to achieve this using a slitting disc and an angle grinder. The twin wall flue can be fixed to the side of your building, or can be built through your ceiling up to the roof, where it can safely deposit fumes according to building regulations. As an example to this you could use a single skin flue to come off of the top of your stove and then join to a twin wall flue (with suitable spacing) to run through the ceiling… MFA is dedicated to providing the highest value to Australian homeowners looking to heat their home with durable and high-performance wood-heating products. Twin wall flue boxing in In Document J, page 24 & 25 When do you have to box in twin wall flue pipe. 5 – Twin wall insulated flue (500mm to go through the wall) We explain in depth how to transition from single wall black stove pipe to double wall insulated chimney pipe. Contact us. If you need to exit the room, whether out through a wall or through a ceiling then you must use twin wall flue pipe and then stay with twin wall flue pipe to the cowl (unless going into a chimney higher up). sign off any Shieldmaster twin wall flue system under approved Document J. of the Building Regulations. About Us Flue Supplies is a family-run company with over 30 years direct experience of selling chimney products to the UK chimney trade and retail customers. Twin wall flue systems. Tools – The tools required to do the job; Hearth – Size, thickness & fixings. If I go through the wall I wondered if I could get away with single-wall flue up to the point of passing through the wall, which would be more pleasing to the eye. Installing - flue liner - twin wall flue - flue pipe. The flue can be single wall or double wall. The 5 options are shown on the page headed - Alternative Methods of Installation. from the ceiling Under BS EN 15827-1 there should be a straight length of 600mm before a change in direction. Main Hearth Forums . Status Not open for further replies. The Ventilated Shield is telescopic to enable you to install your Twin Wall flue system Closer to the Rafters when your Flue System Passes through ceiling/floor. Installing a Class A Insulated Double Wall Chimney Pipe through a flat ceiling can be done by DIY homeowners and is an economical, efficient way of heating your living space. Specialised fire-stop plates, finishing plates and supports will also be used along the way. If the flue passes through bedrooms it should be “boxed in” with an inspection hatch situated in a specific place. Twin wall flue off top of Contura stove. Nov 18, 2012 #1 i am thinking, but idk, that i can use stove pipe for my basic small stove install. Watch the video here. These systems are insulated to maintain flue temperature and also to reduce the heat on the external surfaces. I guess the same question applies to a flue going straight up through the ceiling. The industry calls this a Twin Wall System ( or sometimes Double Wall, or High Temperature Flue). Installing a small woodstove in a shed or tiny home with a metal roof. The junction of the two types of flue should be approx 300mm below the roof. I f you are installing a new heating appliance, ... Where the flue passes through a combustible floor or ceiling, an air gap clearance as per the manufacturer's installation instructions must be maintained. If you would like more information, please complete this form. Merry Xmas skronk, Dec 27, 2007 #6. limestone Member. The Hearth Room - Wood Stoves and Fireplaces. Single skin liners must never be used with wood or multi-fuel applications. Go. Start by placing the first single wall flue in the stove. Thread starter outcast; Start date Nov 18, 2012; Forums. The entire length of the twin wall system must not have more than four bends. Stove pipe should only be used as a connecting pipe between your appliance and Flue Liner / Chimney Stack / Twin Wall Flue System. Thanks A twin wall insulated flue system is a quick and easy way to make a new chimney that is safe, takes up little room and is fast to install. 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