A gas appliance installation check is the engineer's own record of fitting and commissioning one appliance: what was installed and where, the state of the pipework, the tightness test and purge, the flue and ventilation, the gas rate, pressures and combustion readings, and what the customer was told. You can fill it in here and download a finished PDF without creating an account.
A working record, not a certificate
This form is a job record. It is not a landlord gas safety record (often still called a CP12), it is not the building regulations compliance certificate that follows notification, and it is not the manufacturer's commissioning checklist that many boilers come with. Where any of those is required, it is still required.
In Great Britain, anyone doing gas work for payment must be on the Gas Safe Register, and the engineer's card shows which kinds of appliance and work they are competent for. The form asks for the registration and the categories at the top, because a record of work outside the categories on the card is a record of a problem.
Readings belong in numbers
A tick next to "tightness test done" says nothing when something goes wrong later. A standing pressure, a pressure drop, a gas rate, a working pressure at the inlet and a set of combustion figures say exactly what the appliance was doing the day it was commissioned — and give the next engineer something to compare against.
Each reading is a number box with its unit in the label. Enter what you measured. Leave a box empty rather than put a figure you did not take.
The flue type decides the tests
Pick the flue type in the appliance section and the form shows only the tests that belong to it:
- Room-sealed — a check that the case seal is intact. No spillage test.
- Open-flued — a flue flow test and a spillage test, with doors closed and any extract fans in the same space running, plus purpose-provided ventilation.
- Flueless — no flue checks at all, but ventilation becomes the whole story.
Unsafe situations and notification
If you find an unsafe situation anywhere on the installation — not just on the appliance you fitted — record it, how you classified it under the industry unsafe situations procedure, what you did, and whether the warning notice was signed.
Installing many gas appliances is notifiable building work. In England and Wales it is commonly notified through the Gas Safe Register by the registered business, within a set period after the job. The rules differ elsewhere, so the form records what you did rather than stating what the law requires where you are.
When a supervisor or assessor reviews the job
Many firms check a sample of installations, and assessors check apprentices and newly qualified engineers. Switch on the review section and a supervisor can record what they saw, ask knowledge questions and log the answers, and sign the same record.
Common questions
Is this a landlord gas safety certificate?
No. A rented home needs its annual landlord gas safety record, done by a Gas Safe registered engineer on the right form. This installation record cannot stand in for it.
Who can install a gas appliance?
In Great Britain, an engineer working for a business on the Gas Safe Register whose card covers that type of appliance and work. Northern Ireland, the Isle of Man and Guernsey also use the register; elsewhere, check the local licensing scheme.
What readings should be recorded at commissioning?
At least the tightness test pressures and result, the working pressure at the appliance, the gas rate or heat input, and — where the maker asks for one — the combustion analysis at maximum and minimum rate. The manufacturer's instructions set what that appliance needs.
What is a let-by test?
The first stage of a tightness test, checking that the emergency control valve is not passing gas when it is shut. If the valve lets by, the test cannot continue until the gas emergency service or the transporter deals with it.
Do I have to notify building control?
For much gas appliance work in England and Wales, yes — usually through the Gas Safe Register by the registered business, after which the occupier receives a compliance certificate. Repairs and like-for-like work can differ. Check the current rules for where you work.
Can engineers outside the UK use it?
The shape works anywhere — appliance, pipework, tightness, flue, ventilation, readings, handover. The registration scheme, the test standards and the notification rules are UK-specific, so adapt those labels to your own.