Flow and Leak Testing for Gas Appliances & Systems
Gas appliances and heating systems must meet strict safety and performance standards before they leave the factory. A leaking seal in a domestic boiler or a gas burner operating outside its specified flow window represents both a safety risk and a regulatory non-conformance. Testing at the point of assembly – before the product reaches the installer or end user – is the only reliable way to ensure compliance.
Furness Controls designs and manufactures specialist flow meters and leak testers used by gas appliance manufacturers across Europe. Our instruments include dedicated combustion soundness testers, continuous flow leak testers that provide live feedback to assembly operators, and production line flow meters with automatic compensation for varying test pressure.
Standards and Accreditation
Our instruments and calibration services are designed to support the quality and compliance requirements of gas appliance manufacturers and their supply chains.
Furness Controls holds UKAS accreditation and operates in accordance with ISO/IEC 17025:2017 across our calibration laboratories in the UK, France, Germany, and the US. All calibrations are fully traceable to national standards.
Our instruments are suitable for use in programmes requiring compliance with:
• DIN standards - gas appliance performance and safety
Component |
Test Parameters |
Recommended Products |
|---|---|---|
Combustion Cases |
Flow testing verifies integrity of seals after assembly |
|
Domestic Boilers |
Continuous leak testing | Live leak rate allows operator to adjust fittings during assembly |
|
Gas Burners |
Flow testing at 20 mbar | typical acceptance windows of ±5% Automatic adjustment for varying test pressure |
|
Gas Heaters |
Constant flow test to conform to DIN/BS EN 483 |
|
Proportional Control Valves |
Pressure decay leak test 6–150 mbar typical test pressures < 10–20 cc/hr leak rate blockage testing |
|
Gas controls valve for ovens |
150 mb 20 cc/hr |
|
LPG Bottle valves |
28 bar 15cc/hr. Indirect testing for higher pressures available. |
|
Gas nozzles |
20 to 30 mar 0.5 to 100 l/min |
|
Gas governor |
220 mbar 15 cc/hr |
|
Gas Ball valve |
5 bar 15cc/hr |
|
Domestic Boilers water circuits |
2 to 4 bar 1 to 4 cc/min |
|
Domestic gas appliance laboratory |
0.5 to 100 l/min |
|
Campervan gas circuit |
150 to 250 mbar 15 cc/m |
|
Camping stove burners |
30 mbar 1 to 10 l/min |
|
Gas BBQ leak |
150 to 250 mbar 15 cc/m |
|
Gas BBQ flow |
30 mbar 1 to 10 l/min |
|
Domestic gas meter leak |
250 mbar 15 cc/hr |
|
Domestic gas meter flow |
30 mbar 1 to 200 l/min |
|
Industrial gas burners |
0.5 to 20 mbar 800 l/min |
Looking for a more specialised solution?
We design, manufacture, and calibrate all instruments in-house at our headquarters in East Sussex. If your application falls outside standard parameters, our engineers can develop a bespoke instrument tailored to your exact test requirements – delivering a complete turnkey solution from specification through to calibration and commissioning.
Have a question, want to find out more, or ready to speak to an engineer about your gas appliance testing requirements?
Get in touch below