Chimney Flue Regulations Uk

Most solid fuel appliances in the uk have either a 5 125mm or 6 150mm flue outlet on the top or rear of the appliance.

Chimney flue regulations uk.

A maximum of 4 bends up to 45º angle is allowed. Came into force in the uk from 1st of july 2013. Fitting altering or replacing an external flue or chimney or installing a new woodburning stove all fall under the building regulations although they are not typically tasks that require planning permission. This 2010 edition incorporates changes to reflect the renumbering of regulations in the building regulations 2010 and building approved inspector s etc regulations 2010.

A chimney flue should never be less than 5 diameter and only certain stoves can use them defra approved stoves that allow a 5 flue can be attached to this diameter flue. As a rule of thumb the chimney fireplace opening should be not less than 1 7 th to 1 8 th of the area of the fireplace opening if the flue or chimney height is above 6 metres. The construction products regulations require that all chimney and flue products are ce marked. The minimum chimney height recommended for minimum performance of wood burning and multi fuel appliances is 4 5 m from the top of the appliance to the top of the chimney.

A 225mm diameter flue of a similar height will support a fireplace with a dimension no greater than 550mm by 550 mm 22inches by 22 inches. The distance between the cowl of the flue and the adjacent roof wall structure should be higher than 2 3 mtr. Some require larger diameter flues. Whilst these differ in emphasis they all mandate the safe application of the chimney no matter where and how used.

Many require a 6 flue. Temperature the gas being expelled by the flue is hot as it s generated when the boiler is burning fuel so it s important to keep it away from anything made out of plastic such as guttering as you won t want it to melt. The construction and application of chimneys and flues is covered by uk building regulations in conjunction with the relevant european and british standards. You will normally then use the corresponding sized vitreous enamel flue pipe for the first section of flue from the stove to take you into the chimney.

The construction products regulations. As you d expect the requirements controlling new chimneys flues and appliances are safety based and very detailed. Designers architects builders and heating engineers should be aware and understand the requirements on construction products.