Get outside through the quickest and easiest escape route. Damaged flue … Most fitters will do the same: fit the side and rear boards before the top closure plate (plate that blocks off the chimney). It is mandatory if you are building a new property or perhaps you have an older property both require you to have chimney liners. Before we proceed to our “closure plate” (the plate that seals off the chimney) I want to proceed with a “here’s one I made earlier”. Once backfilled you can fit the fixing clamp and closing plate. Plaster is off to see what is happening. HardieBacker® 12mm cement backerboard is fire rated class A1, meaning the product is non-combustible. Increasing numbers of households are opening up old fireplaces to either fit log burning, multi fuel stoves or reinstall open fires it is important that the fireplace opening or stove flue is correctly calculated to the chimney size. Note 2x 30 degree elbows on this install - to move stove away from back wall. A liner will still be a significant chunk of money for a good quality one. Leave the room, close the door and make sure everyone in in the property knows there is a fire. This is because the top edges of these first three boards will provide a shelf, a flange, on which your closure plate will sit (your closure plate will be made of the same board and will slide in to sit on the first three boards). There is an even lazier method and you might even avoid any plastering! Thermocrete are the UK's leading supplier & installer of concrete flue and chimney lining systems in the UK. Work the mix thoroughly, (work it more than usual - the more you do, the better and easier a job it will be). Ideally you want one piece at the back, rather than two, but this is not always possible. We’ll come back to the creating and fitting of the closure plate in another article so forget it for the moment. If you open up an old fireplace and would like to place a wood burner in the opening you must first arrange for the chimney to be smoke treated to see if it is safe to use without a liner. It is a method worked out and improved over the years. I can literally stand up on my fireplace after a fire has been burning for 15-20 minutes and stick my hand inside the chimney opening. New chimneys may require relining to suit the fuel type being used (a gas flue liner may not be suitable for other fuels). Lining a chimney is typically essential before inserting a new appliance or running an open fire; Smoke being blown back into the room, or ‘downdraught’, is one common problem, and could be the result of the flue being too cold, or being of inadequate height or overshadowed by high buildings or trees In the stove room finish the whole job: hearth down, line fireplace, slide closure plate in, plastering, stove in place, cup of tea etc. To open it, release the chain from the hook. Use a marker pen to mark the liner about 1″ above the chimney pot. It’s an unfortunate fact that open fires get dirty quickly. Chimney fires are a hazard in unlined flues, but with a flue liner … Place the pot somewhere safe and squash flat the last 9 inches of the liner and fold the flat section back on itself. Cut the liner at the marker pen mark. I have heard that compressed Vermiculite board (about an inch thick) is far better but it is very expensive and thick (reduces width of recess maybe too much). I use these in a £20 Erbauer jigsaw from Screwfix and they make mincemeat out of 12mm hardibacker. These doors, located at the throat of the flue before it exits the chimney, need to be opened prior to igniting a fire. A flexible liner is the easiest to fit. Chimney caps can … If this is not possible then cut the liner off shorter until it will be possible to fill the gap with mortar. Use a marker pen to mark the liner about 1″ above the chimney pot. If you are doing a leca backfill then tie the liner off while you fix the register plate in place. You will need to paint the surface of the inside walls of the recess and one side of the cement board with a PVA mix (3 water to 1 PVA). A chimney fire is more likely (far less likely if lined and would also be contained within the metal tube) if you do not fit a chimney liner. Person 1 may also push a little. The Essentials to Understanding, Fireplace, Chimney and Flue Sizes. This article deals with the smooth lining of a fireplace recess. I found this method to be very dusty and getting perfectly straight lines difficult. A metal chimney liner was professionally installed just over a year ago and at the same time, the chimney stack itself was repaired, with a cowl being added to the pot (typical type, I think, with a metal top and mesh sides). If we open … Note the centre join in the cement board: the white stuff is Decorator’s Caulking applied with an old credit card. Skim bead is a hard strip that you will plaster to and makes a good and solid metal corner. A chimney may in fact contain more than one flue, and its type is dictated by the heat-producing appliance required. Drop the rope down the chimney with the weight at one end. In older properties, however, your chimney won’t necessarily have to be lined to meet building regulations. Person 1 may find that person 2 can hear them better if they shout into the free end of the liner. Class 2 liners The flue is essentially a channel inside the chimney the smoke is funneled through, and it's controlled by the damper -- a pair of small steel doors. He says it does not crack and can be scored with a knife and snapped (I have not tried it): Your “closure” plate, that seals off your chimney if you have a chimney liner, can also be made of one of these makes of board (not to be confused with a “register plate” used when there is no liner and then must be metal). The amount of heat loss from an open fire through a chimney without a modern flue liner is approximately 70% whereas efficient modern fuel burners will only lose 20-25% of their heat up the chimney. As discussed above get some mortar between the chimney liner stub and the inside of the pot so than any rain that gets into the pot will end up going down the chimney liner, not down the outside of the liner. If you have to have a join have it down the middle maybe? It now finishes in the loft, at upstairs ceiling level. Today, it’s common to line a flue with metal, clay or ceramic conduit that can withstand the intense heat from burning fuel.These materials prevent heat from transferring to the main structure while … If fixing a register plate then it is usually easiest to do the rawlplugs ready for it to be fixed in place, but actually screw it into place once the chimney liner is down. There are generally two ways to get around this problem. It’s possible for adjacent woodwork or other combustible material to catch fire in just a few hours when an active flame is sending heat through an unlined chimney. To find this opening, remove the airbrick or ventilation vent, or take out two bricks about 30cm above the floor. If you’re looking to install a wood burning stove or a multi fuel stove, due to new regulations it is necessary to have the chimney relined. You need to fill the space in between the liner and the pot with mortar otherwise water may run down the outside of the liner. Admittedly it is a small recess so not much gap to peer into and it is very dark in there. Fit the cowl to the liner using the supplied Jubilee clip. Chimney fires can burn explosively and are generally noisy and dramatic enough to be detected by neighbors or passersby. Stovesonline LtdFlightway, Dunkeswell Business ParkDunkeswell, Devon, EX14 4RD, © Stovesonline Ltd. VAT: 801261871, Company: 04636920. If you're in doubt about fitting it yourself then you can get the parts you need from us and we can recommend a local registered installer to come out and fit it for you. My colleague is seen in one of the images cutting plasterboard to fit the chimney breast in readiness for dot and dab. A chimney fire is more likely (far less likely if lined and would also be contained within the metal tube) if you do not fit a chimney liner. The ends of the chimney liner can be very sharp - take care. This is very important as without this stage the bond between wall and board may not be good. The 15mm gap, above the three vertical Hardiebacker plates, allows another sheet of cement board to be slid in as a “roof”: the closure plate. Residential Chimney Lining, Commercial and Chimney Lining for Pubs & Hotels. Before you start you will want to paint the surface of the inside walls of the recess and one side of the cement board with a PVA mix (3 water to 1 PVA). I have done this on back walls a few times when the fire has been close (stops you seeing spider cracks ;-). Often all you have to do is remove some of the masonry from between bricks. It looks surprisingly effective and fits the architectural “honesty’ box. Pull the liner up as you backfill to keep it as straight as possible and fill the whole chimney with leca. Be it an open fire, closed stove or roomheater, the leaping flames and glowing coals are the real heart of the home. Line the chimney if the leakage is inside the stack. Go to top of chimney and pull the liner up until the newly-attached vitreous pipe is “up the chimney a little, out of the way" so the closure plate can be fitted. HardieBacker® 12mm cement backerboard is CE approved and BBA certified since May 2004. A chimney liner should be installed to reduce the chance of a carbon monoxide leak, chimney fire, and creosote buildup. Adjustable vitreous (in red on scribbled drawing) will hang through the closure plate at least 4″ allowing you to easily slide your vitreous up and over it then drop it back down into your stove collar. Often it is easier to remove all the plaster from a breast (especially if it is old and not well attached). Pull the liner up 6″ to give you room to work. The flue, also known as the chimney lining, is basically a pipe up the middle of the chimney. But, you will be attaching “skim bead” to the front edge of the left and right vertical Hardiebacker boards and this bead will stick out a further 3-5mm so bear this in mind (my Hardiebacker boards used to stick out into the room 3-5mm less than one might think for this very reason). Slap on loads of mix around the chimney liner and push the pot over it into the mortar bed. Don't worry about gaps in the corners as we will fill these. and a lighter block, a warm air flow through the chimney is quickly developed. In this case you cannot “slide in your closure plate like a shelf” ‘cos the liner is in the way and cannot be moved. If the liner is really stuck then you can solve this problem by measuring the remaining liner to work out where the liner is stuck. Move closer to the fireplace and even move your hand or face across the fireplace area. This is exactly the same process as is used to attach plasterboard to a brick/block/stone wall. It is best to notch the chimney to allow the fixing clamp legs to sit flush with the top of the stack and so let the closing plate sit flat above the fixing clamp. We recommend that person 1 proceed with all due caution. Or you might choose to render brickwork or go the whole hog (where did that phrase come from must check…) and make smooth with board for that perfect look. Clip-Together-Chimney Design Service (if you have no chimney), Stovefitter's Manual (click book cover to proceed to all articles), The definitive guiding to choosing and installing a wood burning or multifuel stove, Cip-Together-Chimney Design Service (if you have no chimney), Ennvironment, renewables and recent media nonsense, Methods for Fitting Stove Into a Fireplace (infographic). For example, if the liner is a tight fit in the chimney or you fitted the liner/cowl the weekend before, during a rare UK sunny weather slot, and the cowl is now fixed in place and the scaffolding is on somebody else’s house. Move flammable materials, furniture, ornaments away from the fireplace And here is the chimney breast ready to plaster. The old flue surface is eroded and rough, causing frictional resistance to the flow of the gasses resulting in soot being held in the flue and increasing the risk of a chimney fire or blockage. . Hold a lit taper in front of the opening — a flame drawn towards it indicates a clear chimney, while a still flame is a sign that the chimney is in some way obstructed. Drop the liner back down, slipping the vitreous pipe into the stove. Live chat available 9am-1pm and 2pm-4.45pm (sometimes longer). Within older buildings, the chimney shaft would have been used for an open fire, and the flue size would have been much larger than that for a modern wood burner. Another main advantage of lining is … A chimney liner is exactly what it sounds like – a lining that goes inside of your chimney. Person 1 and 2 need to work together, either by prearranged method or shouting. There was three men there for a full day, maybe 8 bricks taken out … In the room where the fire is, improve the ventilation. It takes a little more effort but provides a professional finish for the more discerning client ;-). However, for any fire to work successfully, it must be connected to a sound chimney and correctly sized flue. My parents paid circa £800 for a 175mm stainless flexi liner for their open fire, last year. Shopping Cart by Shopify, Wood burning stove in a fireplace connected to a chimney liner, wood burning stove in a fireplace connected to a chimney liner, Here is Hardiebacker’s official fireplace-lining leaflet. Use roof ladders where possible, tie yourself to solid roof structures, (chimney stacks are good for this), so that if you slip you don't fall off the roof.