Step-by-step boiler installation using Fluesnug

Step-by-step boiler installation using Fluesnug

Professional Builder follows a boiler installation where the flue has been sealed with the FlueSnug pipe collar.

PipeSnug is a familiar name to Professional Builder and we have followed the company’s story from its launch by Directors Chris Burdett and Alex Lever. Three successful years later and the popularity of the range continues to grow, so much so that in 2020 the team launched FlueSnug, designed to fit all 100mm boiler flues.

Removing any need for pointing, FlueSnug can be installed in less than five seconds and snuggly fits the 152mm core-drilled hole in the wall through which the boiler pipe and flue exits. The product can be used both inside and outside the property for the best finish, prevents heat escaping, acting as a barrier to drafts, damp, insects, and pests.

The device is designed primarily to help ensure properties meet air tightness requirements, simplify the installation of flues in older properties and when fitted, eliminates the need for any further pointing with mortar or sealing around the flue to the building fabric.

The product also allows installers to quickly access the pipe and flue for any service or maintenance requirements, without the need to remove existing brickwork, mortar, or sealant, saving even more time and cost for installers and their customers. You can then refit the existing FlueSnug – you don’t have to buy another one.

Approved by leading boiler manufacturers, including Ideal Heating and Worcester Bosch, it’s the quickest, and most cost-effective way to comply with the recent changes to Part L of the Building Regulations which require a grommet or pipe collar to be fitted, to help maintain the energy efficiency of the building. This will help to ensure that new homes are the most energy efficient they can be, even if the fabric of the building, including floors or walls, has been penetrated by pipework.

Fitting a pipe collar or grommet, such as PipeSnug and FlueSnug, solves these problems and saves time, mess and are easy to fit in seconds. Another advantage is that FlueSnug can be installed at height, as it is can simply be pushed into place from the inside of a building to the outside, without the need for expensive scaffolding and PPE.

Step 1

Drill a 152mm hole ready to receive the FlueSnug and flue.

Step 2

Supplied either in black or white, the product can be used on inner or outer wall faces. Just push it in. It takes seconds and once it is in you are ready to pull the flue through. A real benefit is that the unit can be installed at height without scaffolding – simply push it into place from the inside through the hole!

Step 3

Fit the horizontal flue. No making good or pointing is required. Remember, you can also access or replace the flue pipe for future servicing more easily by using FlueSnug.

Step 4

It’s an ideal way to finish the job on the inner wall too. Here the white version gives a neat finish and efficiently seals the hole in the wall. PipeSnug recommends that where a flue is not mechanically fixed to the boiler, then you only use one FlueSnug (either on the inside or the outside) and then seal it as you would normally on the other side. Where the flue is mechanically fixed (e.g., with screws) then it’s fine to use a FlueSnug on both sides.


Step 5

Job done! FlueSnug is approved by leading boiler manufacturers including Ideal Heating and Worcester Bosch. PipeSnug is the first product brought to market by Snug Solutions and the company has other exciting products it’s working on, all of which are focused on solving problems in the construction and plumbing sector.


For further information on FlueSnug visit

Related posts