Does a boiler 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.
How much does it cost to replace a boiler flue?
What Does Installation Of A Boiler Flue Cost? For a straightforward horizontal flue installation, the cost would be around £200 for parts and labour including VAT. The basic flue kits for most popular boilers cost in the region of £100 and the rest of the cost is labour to drill through the brickwork and make good.
How can I stop rain coming into the flue?
Relining your chimney is one of the best ways to prevent rain from entering your chimney if you consistently notice water dripping into your fireplace every time it rains.
Why is water dripping from my boiler flue?
The main cause of leaking boiler flues: The majority of installed boilers are condensing. This means the heat from the exhaust is made use of to preheat the water coming back into the system.
Can you use silicone to seal a boiler flue?
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.
Can you cover a boiler flue?
Don’t conceal your flue! Boarding over or encasing a boiler flue, particularly vertical ones, might look a little better but you must always ensure you don’t cover up access points or joints in the flue. A flue’s predominant job is to expel waste gases, so it should not be obstructed.
Can you move a boiler flue?
Your boiler flue pipe is considered part of your boiler system and it is illegal and dangerous for anybody other than a qualified, registered engineer to make any alterations.
Should boiler flue pointing upwards?
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.
Can rain come down a boiler flue?
Them flues can let driven rain enter the boiler either via the inside of air tube or if the void area around the flue is not fully made good with a sand & cement mix. Maybe ask a gas technician to check out the boiler,to ensure its safe and check the condensate is not backing up into the boiler during heavy rain.
Should a boiler flue be level?
Flue regulations are not only in place to keep your home safe but the people passing by your property too. If your boiler flue has to face out onto a public space, the installer will have to ensure that it’s fitted at least 2.1 metres above ground level, over head height.
Can you use expanding foam to seal a boiler flue?
It should be ensured in all installations that the wall is sealed to the flue inside the property by using expandable foam, by pointing with sand and cement or using any other suitable material.