Where should a boiler flue be placed?

Published by Charlie Davidson on

Where should a boiler flue be placed?

Under the boiler flue position regulations, the flue has to be positioned a certain distance from any parts of the home that can be opened up such as windows and doors. How far this is will depend on the size of your boiler but is typically between 30-60cm above, below or to the side of an opening.

How far must a gas flue be from a window?

The exact distance will depend on the size of your home but, generally, the regulations prevent a boiler flue from being situated within 30-60cm of a window or door. This is to prevent harmful gases from exiting the flue and then re-entering the property through an open door or window.

How far should a flue be from a boundary?

Vertical flue clearance, 300mm adjacent to a boundary line. 6. 600mm distance to a boundary line, unless it will cause a nuisance. BS 5440:Part 1 recommends that care is taken when siting terminal in relation to boundary lines.

Can you cover a boiler flue?

The flue is simply a piece of pipework or duct that moves gases and hot air from the combustion chamber of the boiler to outside. Horizontal flues generally don’t need a cover, although if it’s placed close to a tree, it’s a good idea to have a guard around it to stop leaves from getting into it.

Should a boiler flue point up?

The flue must be at the correct angle If it doesn’t point slightly upwards, it’ll drip down onto the street below, and possibly onto railings or cars. At the least, it’ll probably leave dirty staining down your wall.

What is the maximum length for a boiler flue?

As a general rule, a flue should work effectively when it’s up to 10 metres in length. This is usually based on a standard thickness of 60/100mm. For flues that need to be longer than this, it’s a good idea to increase the thickness to 80/125mm to ensure that the gases are able to escape easily.

How many bends can a flue have?

There must be no bends greater than 45 degrees and there must be no more than four bends in the chimney. If you are using four bends then you must have a soot door between the second and third bend (Building Regs).

Can you flue into a Neighbours garden?

If the neighbours property goes right to your wall then you are not allowed because then your flue would be on their property, neither are you allowed to cause a nuisance, the plume from modern boilers can project 3 metres, there are also restrictions on boundaries, you cannot flue within a 600mm of your neighbours …

Can I extend my boiler flue?

If you are carrying out an extension on your home, or suspect that your boiler flue is not placed sufficiently away from a window, vent or door, you may need to extend the flue.

Does a boiler flue need to be sealed?

The flue should be properly sealed on both sides After the latest regulations, it’s absolutely essential that your flue will be sealed properly on both sides. This is something you should watch for, as some companies may be tempted to take shortcuts. It should be sealed using sand cement or equivalent material.

What is the maximum length for a Worcester boiler flue?

Note, the terminal end projects beyond the outside wall by the distance shown opposite. Add the following to length (L) to check the maximum flue length is not exceeded: 2000mm for each extra 90° bend. 1000mm for each extra 45° bend.

How short can a boiler flue be?

Where is boiler flue not supposed to be placed?

According to the boiler flue regulations, regard should be given to the following issues when determining the appropriate placement: A boiler flue should not be placed close to any part of your home that can open, such as windows or doors.

What are the regulations for a new boiler?

We’ve highlighted some of the key points from the regulations that you will need to keep in mind when installing a new boiler. Under the boiler flue position regulations, the flue has to be positioned a certain distance from any parts of the home that can be opened up such as windows and doors.

What are the regulations for vertical flue installation?

Flue termination under balcony/eaves Note Vertical flues must not terminate within 600 mm of an openable window, air vent or any other ventilation opening. The installation of the boiler and flue must be in accordance with the Gas Safety (Installation and Use) Regulations 1998, the Building Regulations and BS 5440 Part 1’.

How are boiler flue regulations enforced in the UK?

As the waste gases expelled by boilers can be very harmful, boiler flue position regulations regarding boiler flues are necessarily strict. Anyone who contravenes them can face serious sanctions. Furthermore, failing to adhere to boiler flue regulations could result in tragic consequences.

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