The top insert sleeve slides inside the flexible chimney liner at the top of the installation and is used together in conjunction with the Top Plate and Top Clamp, this will support the weight of the liner at the top of the stack without damaging the integrity of the flue liner.
MF21 MI-FLEX accessories 1mm 316 stainless steel is a premium range of heavy-duty fittings made using 1mm 316 stainless steel. This family of installation fitting has been perfectly designed for use with MI-FLEX 316 and 904 flexible flue liners. When fitted in conjunction together it will make a full system chimney.
These items are to use in conjunction with MI-FLEX Multi fuel flexible flue liner. Building Regulations Document J requires that a flexible flue liner can only be installed completely enclosed inside a masonry chimney. A non-masonry enclosure such as timber or plasterboard boxing in is not acceptable. All items are suitable for use on appliances up to 600°C (T600 designation).
Suitable for use on Wood <20% moisture, Smokeless coal, Gas, and oil. Bottom fixings are used to make the transitional change from the connecting flue system to the Flexible flue liner. The connection to the flex should be made inside the confines of the existing masonry chimney and no flex should be on show at any time. Provisions must be made to secure the bottom fixing into the connecting flue below and the flexible above to make a gas tight seal, The use of fire cement, ceramic rope or tape or high temperature sealant it's advisable. The chimney system must be designed to allow for easy provision for sweeping and maintenance. Sweeping must be carried out by competent person. On solid fuel applications a list of HETAS registered sweeps can be found at www.hetas.co.uk. under no circumstances should chemical cleaners or mild steel tools be used to sweep stainless steel chimneys. Cleaning and inspection of the chimney system should be carried out at least once a year, along with maintenance of the appliance, but it is recommended that chimneys serving solid fuel appliances be swept at least twice a year, at the end of the heating season to remove any deposits, which may have built up during the season, and at the start of the next heating season to check for any blockages or deposits. i.e., bird's nests.
We offer FREE Kerbside Delivery* for all of our Wood Burning, Multifuel, Gas and Electric stoves available on the website over £500.00 and can also offer a completely free delivery on all chimney liners, vitreous flues and components on request.
Delivery times may vary depending on whether your chosen stove or flue product is in stock, in stock items will usually be despatched from our warehouse via a courier within 7-10 working days from the date of order placed, all stoves will be packed carefully and delivered safely by courteous drivers, you will also receive a telephone call prior to delivery to ensure a convenient date is given.
For customers in a hurry for their order we can also offer a next day delivery service on all in stock items at an additional charge (price on application)
Customers wishing to collect their orders from our showroom are welcome to do so and will be contacted via email or telephone once your chosen product is on stock and has been checked.
For more information on delivery please contact us today.
*South East UK only, excludes Scotland and Ireland, if delivery is required beyond the South East please contact us directly for a delivery quotation.
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