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Central Heating Commissioning Certificate

A Central Heating Commissioning Certificate confirms that a complete central heating system has been commissioned, covering not just the boiler but the entire system including radiators, pipework, controls, pump, zone valves, and system flushing. It is distinct from a boiler Benchmark record as it covers the full system performance.

Building Regulations Part L, BS 7593:2019, Benchmark SchemeValid: One-off (per system commissioning)

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Sample CH Commissioning Certificate certificate

Sample Central Heating Commissioning Certificate certificate created with CertBox, showing the professional PDF layout with system type and specification (sealed, open, combi), radiator check (flow temperatures, trvs), system flush method and water quality readings

Sample CH Commissioning Certificate with fictional data. All personal details shown are fake.

What it covers

  • System type and specification (sealed, open, combi)
  • Radiator check (flow temperatures, TRVs)
  • System flush method and water quality readings
  • Controls commissioning (room thermostat, programmer, cylinder stat)
  • Pump settings and zone valve operation
  • Boiler commissioning readings

Who needs a CH Commissioning Certificate?

Homeowners with new or upgraded heating systems
Landlords
Building Control
Boiler manufacturers (warranty)

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Frequently asked questions about CH Commissioning Certificate

Is this the same as a Benchmark certificate?
No. A Benchmark covers the boiler commissioning only. A Central Heating Commissioning Certificate covers the entire system including radiators, pump, zone valves, controls, and system flushing. Both may be needed for a new installation.
Do I need this for a boiler swap?
If you are only replacing the boiler and the rest of the system remains unchanged, a Benchmark and powerflush certificate are usually sufficient. This certificate is most useful when the full system is new or significantly modified.

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