Does a flue need to be sealed?
The wall around the flue needs to be sealed, both internally and externally. You can do this yourself. You do not need a registered engineer. Usually we seal externally with sand and cement mortar and plaster or filler on the inside.
Can you install boiler flue from inside?
The flue can be installed from inside the building, when access to the outside wall face is not practicable. Long lengths of flues must be secured to the walls or ceilings they run against. Use at least one fixing bracket for every flue extension that is used.
When installing a horizontal flue extension D pack the flue must include what fall angle back to the boiler?
The flue system should have a continuous fall back to the boiler (1.5° to 3°) and be supported at least once every metre using suitable support brackets (where shorter straight lengths are used, for example between two bends, these should also be supported). Ensure that the there are no ‘dips’ in the flue system.
How do you seal a flue?
There are few options that will allow you to easily seal off your flue: a silicone rubber seal or inflatable sealer. Both are efficient at sealing off the flue, even more so than traditional dampers, and are relatively inexpensive. Sealers can be found at chimney supply stores, masonry stores, or online.
Can you seal a boiler flue with silicone?
If during installation Gas Safe registered engineers are unable confirm the suitability a sealant, e.g. an expanding foam product or silicone, from both the boiler and sealant manufacturers then the sealant product should not be used.
Why should a boiler flue be sealed?
1. Weather proofing of the termination to prevent weather and/or combustion product entry. 2. Security of the chimney to prevent disconnection.
How close can a boiler flue be to a window?
30-60cm
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 boiler flue stick out?
around 30-60cm
Flue position Depending on the size of the boiler, the flue must be positioned a certain distance from the nearest window, door, or air brick. Typically this is around 30-60cm if it’s to the side or above the opening, and a bit more if it’s below.
How often should a flue be clipped?
IIRC the standard is at least every 1.8M or at every joint. Unless MI’s state otherwise.
Does the area around the flu for my boiler need sealing?
The area around the flu for my boiler apparently lacking a proper filling or seal on the inside and outside. what does this area need doing? does this need somebody with a gas safe reg? The wall around the flue needs to be sealed, both internally and externally. You can do this yourself.
What is a boiler flue?
Definition: A boiler flue is a component which enables gas to escape safely from boiler. In most cases, this is a pipe or a duct, which is fitted to the boiler to carry exhaust gases away from your home safely. The aim is to remove waste products without exposing you or anyone around you to them.
What happens if you have a gas boiler behind a chimney?
If you have a gas boiler behind your fire, the emissions will exit through your chimney, rather than via a boiler flue. It is worth noting that back boilers are a dying breed because they are much less efficient than combi and regular boilers.
What size pipe do you need for a boiler flue?
An external 60mm diameter flue leads from the boiler terminal (which includes a 90° elbow at the flue exit) to terminate with a 90° elbow complete with grille. Push fit one metre extension pipes are used as required, and the fixing clips supplied support the system from the wall.
https://www.youtube.com/watch?v=aBZgMpsoxME