The CD/10 is the OFTEC installation completion report: the sign-off you leave behind when a new oil installation goes in. It covers the whole job, from the tank in the garden to the commissioning figures, and it is the document building control cares about. There is no pass or fail on it, because you would not be issuing it at all if the installation were not complete.
Before you start
Make sure Mucka knows you work with oil. Open the certificate settings (see Set up your certificates) and tick Oil, or Gas and oil if you do both.
While you are in there, add your OFTEC registration number and your engineers' OFTEC technician numbers. They print on the certificate. They never stop you approving one, because oil is not a licensed trade the way gas is. If you have not got them, it prints without them.
Start the report
Two ways in:
- From the job. Open the job from Jobs and use the certificates card. Starting it here links the client, the property and the engineer for you.
- From the certificates page. Go to Gas & Oil Certs, tap New certificate, choose the Oil tab, and pick Oil Firing Installation Completion Report (CD/10).
If your job types include Oil Boiler Install, Mucka already knows that job wants a CD/10 and will offer it on the job itself.
Fill it in
The CD/10 works through the installation in the order you built it:
- Details. The completion date and the engineer. Your OFTEC numbers show here so you can see what will print.
- Client and property. Prefilled if you started from the job.
- The tank. Type, capacity, make, serial number and its OFCERT licence number (that is the tank's product certification, not your OFTEC number), plus whether a remote fill system is installed and pressure tested and whether an overfill alarm is provided.
- TI/133 risk assessment. The form asks whether a tank risk assessment has been completed. If you have done a TI/133D for the property in Mucka, it finds it and offers it as a card: tap to link it, and its serial prints on the certificate. If the assessment was done on paper by someone else, you can still just answer yes.
- Oil supply. The supply line size and type, whether it was pressure tested, whether OFTEC's pipe installation guidance was followed, and whether a remote sensing fire valve is fitted.
- The appliance. Make, model and serial, the burner make, model and type, the boiler type and the SEDBUK efficiency figure. You can add more than one appliance if the installation has them.
- Flue and air supply. The flue type, diameter and routing, whether a chimney liner is fitted, and whether the termination complies with BS 5410-1 and the manufacturer's instructions. Then the combustion air and ventilation provision, and the extractor fan question if there is one.
- Electrical. Whether a CD/20 (minor works) or CD/21 (installation certificate) was issued to BS 7671.
- Controls. What the system has: programmer, room thermostat, cylinder thermostat, TRVs, the zoning, short cycling protection and the automatic bypass.
- System readings. Cleansing and inhibitor, then the temperatures, pressures and flow rates off the completed system. Every unit is locked, same as the CD/11, so a figure can only ever mean one thing.
- Commissioning. Whether everything was commissioned to the manufacturer's instructions, and whether a CD/11 has been provided. Same trick as the risk assessment: if there is a CD/11 on file for the property, Mucka offers it in one tap and its serial prints on the certificate.
- Photos. Add photos of the finished installation if you want them on record. Entirely optional.
- First service due. You can put a date down for the first service, and it prints on the certificate for the customer. It is advisory only. Mucka does not set a reminder from it, because the next document at that property is a CD/11, not another CD/10.
- Sign it off. The engineer signs on screen. The customer can sign for receipt too, but they do not have to.
Everything saves as you go, so you can put your phone down mid job and pick up where you left off, even on a different device.
Approve and send
Tap Approve when it is done. Approving locks the record as a legal document and generates the PDF. After that it cannot be edited, only corrected by issuing a replacement.
Approving a CD/10 also raises a boiler registration task for each appliance on it, the same as approving a gas installation record does. For a Grant boiler that routes to the Grant G1 Portal. Mucka pre-fills what it knows and hands it over; your engineer submits the registration themselves, and with oil that submission is also how they self-certify the OFTEC works notification. Mucka never submits anything on your behalf.
Then tap Send. Mucka prefills the client from the property and attaches the PDF. Check the message, then send.
What the certificate looks like
Your business details with your OFTEC registration, the property and client, then the installation section by section: the tank, the supply, each appliance, the flue, the air supply, the electrical answers, the controls, the readings and the commissioning. Any linked TI/133D or CD/11 shows with its serial, so whoever reads it can see the paperwork joins up. The first service date, if you gave one, prints in the sign-off band.
The other oil forms
The CD/10 joins the CD/11 oil boiler service, the CD/12 landlord check and the TI/133D tank risk assessment. Only the CD/14 warning notice is still to come. Ask Mucka about it and it will log that you are waiting on it.