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45 years of trusted expertiseCondensate Traps, Siphons, Pipes & Accessories
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Ensure safe and compliant disposal of acidic boiler wastewater with our professional range of condensate traps, siphons, and rigid discharge pipes. Built for durability and exact manufacturer fit, these essential spares help prevent blockages and system lockouts in modern condensing heating systems.
448347
Worcester Bosch 87182256360 Condensate Trap/ Syphon.
£107.33
each, Inc. VATLoading...
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Modern high-efficiency condensing boilers generate acidic wastewater that must be safely routed to an appropriate drain. Our comprehensive selection of replacement condensate traps, siphons, and specialist discharge pipework ensures you can perform rapid, compliant repairs when these critical components fail, become blocked, or suffer from freezing during the winter months. We stock exact-fit original equipment and compatible spares suitable for a wide variety of domestic and commercial boiler brands, allowing heating engineers to cure persistent boiler lockouts caused by restricted condensate flow. From internal siphons designed to hold a safe water seal against combustion gases, to external insulated pipe clips and frost-protection solutions, these trade-quality materials are built to withstand corrosive wastewater and harsh weather conditions. Carrying the right condensate accessories reduces time spent diagnosing nuisance faults on site and guarantees that every repair meets current Gas Safe and building regulations regarding safe discharge.
Frequently Asked Questions
Why does a boiler lock out when a condensate trap or pipe is blocked?
When a condensate trap or external discharge pipe becomes blocked by debris or winter freezing, the acidic wastewater cannot escape and backs up into the boiler. Built-in safety sensors detect this backup and instantly shut the boiler down to prevent internal flooding and damage to the combustion chamber. Clearing the blockage, replacing a faulty siphon, or upgrading to a larger diameter insulated pipe will restore flow and allow the appliance to safely fire up again.
What size pipe should be used for external boiler condensate discharge?
To minimise the risk of freezing during severe weather, current industry guidelines recommend that any external condensate discharge pipework should be upgraded to a minimum internal diameter of 30mm, typically using 32mm outside diameter plastic waste pipe. It is also highly recommended to keep external pipe runs as short as possible, maintain a continuous fall, and wrap the pipe in high-quality waterproof insulation to ensure reliable winter operation.