Checklist

Gas Appliance Commissioning Checklist Template

Ensure every gas appliance is safely commissioned with this online checklist. Record pre-commissioning checks, commissioning tests, and final results.

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Take photos of the object in the mobile app, complete the inspection report from the template, and download the finished photo report as Word or PDF.

1

Mobile Photo Documentation App

Capture commissioning photos on site with the mobile app and integrate them directly into the checklist.

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2

Inspection report

Complete the document from this template: sections, fields, photo documentation, and signatures.

3

Photo Report Generator

Attach photos of the appliance, nameplate, and gas meter reading to the commissioning checklist for a complete record.

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Checklist

Document Preview

Review the structure, sections, and fields before proceeding to fill out the document.

Gas Appliance Commissioning Checklist

No.GACC-2026-0033

1. General Information

The inspection was carried out to assess the technical condition and safety of gas appliances, using visual inspection, functional testing, and review of relevant documentation.

Inspection date7/14/2026 Address22 Park Avenue, London N1 4AA
Expert Gary Smith , Gas Safe Registered Engineer

The overall condition of the gas appliances was found to be satisfactory, with no immediate safety hazards identified.

2. Object of Inspection

The inspected objects include gas stoves, water heaters, boilers, and associated gas piping and fittings, as listed in the inspection checklist.

Object typeGas Appliance Object nameWorcester Bosch Greenstar 30i (SN GB1234567890)
Technical conditionnot filled in

The identification and location of each inspected gas appliance are recorded in the checklist.

3. Main Parameters

Main parameters such as gas type, nominal heat input, operating pressure, and efficiency were verified against the manufacturer's specifications and nameplate data.

Gas Tightness TestPass Pipework Visual InspectionSatisfactory
Ventilation CheckAdequate Flue CheckSatisfactory
Gas Type VerificationCorrect Gas Pressure Check21

All main parameters were found to be within acceptable limits and consistent with the design specifications.

4. Additional Parameters

Additional parameters including flue gas temperature, carbon monoxide concentration, and combustion air supply were measured and evaluated.

Appliance Ignition Test: Pass Flame Appearance Check: Normal
Safety Device Test: Operational CO Reading Test: 45
Appliance Operation Test: Pass

No significant deviations from recommended values were observed for the additional parameters.

5. Inspection Findings

Lists any failures or issues identified during commissioning, with descriptions and photos.

No.Damage descriptionPhotos
1-not filled in

6. Additional Information

Records the overall commissioning result (passed/failed) and any additional notes.

Identification was carried outAppliance: Worcester Bosch Greenstar 30i, SN GB1234567890
There are remarksAll pre-commissioning checks passed. Commissioning tests passed. Gas pressure 21 mbar. CO reading 45 ppm. Commissioning result: Passed.

7. Inspection Participants

Lists the commissioning engineer and customer.

No.Full namePosition / statusComment
1Gary SmithGas Safe Registered EngineerPerformed commissioning
2Tom WilsonCustomerWitnessed commissioning

Signatures

Captures the signatures of the engineer and customer to confirm commissioning.

______________________________
Gary Smith, Gas Safe Registered Engineer
______________________________
Gary Smith
______________________________
Tom Wilson

Checklist

Purpose and Procedure for Drafting the Document

What Is a Gas Appliance Commissioning Checklist?

This checklist documents all steps required to safely commission a gas appliance after installation or major modification. It covers pre-commissioning checks, commissioning tests, and final sign-off.

Why Use This Template?

The online template ensures no critical step is missed, from gas tightness testing to safety device verification. It provides a clear record for the engineer and customer.

Key Sections

The checklist includes a commissioning header, pre-commissioning checks (tightness test, ventilation, flue), commissioning tests (ignition, flame, CO reading), and completion with signatures.

New Gas Appliance Installation

After installing a new boiler, cooker, or heater, the commissioning checklist verifies that the appliance operates safely and efficiently.

Major Modification or Replacement

When an existing appliance is replaced or the gas system is significantly modified, commissioning ensures the new setup meets safety standards.

Landlord Safety Compliance

Landlords may require commissioning records for new installations in rental properties to demonstrate compliance with gas safety regulations.

Warranty and Insurance Requirements

Manufacturer warranties and insurance policies often require documented commissioning to validate coverage.

  1. 1

    Perform Pre-Commissioning Checks

    Conduct visual inspection of pipework, gas tightness test, ventilation check, and flue check before starting the appliance.

  2. 2

    Execute Commissioning Tests

    Test appliance ignition, flame appearance, safety devices, CO reading, and overall operation.

  3. 3

    Complete and Sign

    Record the overall result (passed/failed), add notes, and obtain signatures from the engineer and customer.

Photo Report Generator

Attach photos of the appliance, nameplate, and gas meter reading to the commissioning checklist for a complete record.

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Mobile Photo Documentation App

Capture commissioning photos on site with the mobile app and integrate them directly into the checklist.

Mobile App

Document Sections

Click a section to jump to it in the sample document.

General Information

The inspection was carried out to assess the technical condition and safety of gas appliances, using visual inspection, functional testing, and review of relevant documentation.

Object of Inspection

The inspected objects include gas stoves, water heaters, boilers, and associated gas piping and fittings, as listed in the inspection checklist.

Main Parameters

Main parameters such as gas type, nominal heat input, operating pressure, and efficiency were verified against the manufacturer's specifications and nameplate data.

Additional Parameters

Additional parameters including flue gas temperature, carbon monoxide concentration, and combustion air supply were measured and evaluated.

Inspection Findings

Lists any failures or issues identified during commissioning, with descriptions and photos.

Additional Information

Records the overall commissioning result (passed/failed) and any additional notes.

Inspection Participants

Lists the commissioning engineer and customer.

Signatures

Captures the signatures of the engineer and customer to confirm commissioning.

Document Fields and Columns

General Information

Inspection date
Date of commissioning.
Address
Address where the appliance is installed.
Expert
Name and Gas Safe registration number of the commissioning engineer.

Object of Inspection

Object type
Type of gas appliance, e.g., boiler, cooker.
Object name
Manufacturer and model of the appliance.
Technical condition
Condition of the appliance before commissioning.

Inspection Findings

No.
Sequential number for each nonconformity.
Element
Component or area where the issue was found.
Defect
Type of issue.
Damage description
Detailed description of the issue.
Photos
Photographic evidence of the issue.

Inspection Participants

No.
Sequential number for each participant.
Full name
Full name of the participant.
Position / status
Role of the participant, e.g., engineer, customer.
Comment
Any additional comments about the participant.

Frequently Asked Questions about Photo Reports and Photo Tables

Who should complete this commissioning checklist?

A Gas Safe registered engineer should complete the checklist after installing or modifying a gas appliance. The customer may also sign to acknowledge the results.

What tests are included in the checklist?

The checklist includes gas tightness test, pipework visual inspection, ventilation check, flue check, gas type verification, gas pressure check, ignition test, flame appearance check, safety device test, CO reading test, and appliance operation test.

Can I add photos to the checklist?

Yes, the template supports attaching photos of the appliance, nameplate, and gas meter reading to provide visual evidence.

Is this checklist a substitute for a commissioning certificate?

The checklist documents the commissioning steps and results, which can support a commissioning certificate. Exact requirements may vary by jurisdiction.

How do I use this template?

Open the template in the online editor, fill in the appliance and engineer details, complete the checklists, and sign digitally. Export the final document for your records.

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