The right flues for stoves and cookers
Lower your carbon count
The introduction of Document L1a means that all new build developments must comply with stringent new rules aimed at reducing carbon emissions from houses by 20%. By choosing an appropriate secondary heating appliance and an efficient chimney/flue system, you can help meet the Government’s target without compromising on the cosy focal point that truly makes a house a home. Document L assumes two types of heating – primary central heating, and secondary heating from room heaters. The SAP calculation used to determine the carbon emissions assumes the secondary heating to be electric. Electricity is a more carbon intensive energy source than wood, dual fuel (a mix of wood and solid fuel), gas or oil. This assumption gives you the opportunity to make a carbon saving by substituting electric with another fuel and an efficient appliance, open or glass fronted. By using a carbon efficient secondary heat source you can gain carbon credit to offset against other aspects of construction, like insulation or glazing.
Chimney Specification
The carbon saving can be increased further by using a chimney that has a diameter of less than 200mm, as this halves the assumed air flow in the chimney. Most modern appliances can work efficiently with a properly insulated chimney of less than 200mm. It is important to note that there is no benefit in using a flueless appliance, as the air flow will be assumed to be the same as a 200mm chimney.
Choosing your appliance at the planning stage is now crucial
Both primary and secondary heating MUST be specified at the design stage if the required carbon savings are to be realised. This is a big change in our thinking as the choice of appliance would usually have been left until building was complete or the house occupied. If the choice is not made before the build, the SAP programme will default to the worst case scenario.
STEEL FOR FLEXIBILITY AND DESIGN
The range and quality of Schiedel Rite-Vent flues is second to none. We have built our reputation on reliability and have the quality certificates to back it up. The products can be used in both new and renovation projects.
ICID Twin wall insulated chimney system for gas, oil, wood and multi-fuel.
• Stoves and open fires
• Atmospheric & condensing applications
• Oil and gas appliances up to 150kw
• Available in stainless steel, copper and paint finish
• 125 - 300mm Internal Diameter
Prima Plus 1mm Single wall stainless steel flue systems for gas, oil, wood and multi-fuel.
• Flexible connection between stove or boiler and chimney
• Fluing atmospheric and condensing stoves and boilers
• Can be painted
• 80 - 755mm Diameter Range
Flexible Liners For relining existing chimneys to take gas, oil and multi-fuel appliances including stoves & open fires.
• Single skin Wonderflex and Triplelock for gas and oil (28 sec)
• Twin skin Tecnoflex (Turboflex Plus) for oil and multi-fuel
• Diameter range 80 - 400mm
PUMICE FOR DURABILITY
The Schiedel Isokern chimney systems provide a lightweight, easily installed and versatile chimney.
The systems are suitable for use with gas, oil, solid fuel and wood burning appliances in new and refurbished projects.
DM (Double Module) Chimney Systems.
The double wall system maintains flue gas temperatures while preventing heat transference to the outer casing. The separation of the inner and outer components also allows for thermal movement, reducing the risk of cracking and subsequent leaking or staining. It is simple and quick to build.
Fire Chests.
The Isokern range of fire chests are supplied as flat packs. They can be easily and quickly constructed to produce a neat and preformed fire opening ready for finishing. The Manor Fire Chest provides the opportunity to create fire openings up to 1.25M wide.
Flue Liners.
The Isokern Flue Liner range consists of round and oval liners in a wide variation of diameters to suit most applications. The liners can be used to reline an existing chimney as well as in new build.
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House of Flues
An interactive guide to help you select the best flue for each appliance around the home.
