OFTEC Oil Firing (OFT101/105E) study guide
OFTEC Oil Firing (OFT101/105E) · Work through your exam, one topic at a time.
OFTEC oil firing certification is the UK industry route by which technicians demonstrate competence to work on oil-fired domestic heating appliances and their associated storage, supply, flue and control systems. It suits heating engineers moving into oil from gas or solid fuel, tradespeople extending an existing plumbing and heating business, and experienced oil technicians who need to evidence current competence. The OFTEC Oil Firing (OFT101/105E) study guide has 9 sections and about 3,919 words.
01Health and Safety for Oil Firing Work
Oil firing work combines three hazards that rarely appear together elsewhere: flammable liquid fuel, combustion products including carbon monoxide, and mains electrical controls. Questions in this domain test whether you can identify the hazard, name the control, and know the legal duty behind it.
355 words, about 2 min02Legislation and Industry Standards
You are not expected to quote statute word for word, but you must know which instrument or standard governs which activity, and who holds the duty. The recurring themes are duty of care , competence , notification and documentation .
367 words, about 2 min03Oil Storage
Storage questions focus on integrity, containment, siting and protection . You need to know the features of a compliant tank installation and the reasons behind each feature.
363 words, about 2 min04Supply and Fuel Properties
Kerosene (28-second oil) - the standard domestic heating oil. Low sulphur, clean burning, suitable for pressure-jet burners.
346 words, about 2 min05Oil Fired Appliances: Types, Construction and Operation
Pressure-jet (gun-type) burners - the dominant domestic type; oil is atomised through a nozzle at pressure, mixed with air, and ignited by electrodes. Vaporising (pot) burners - oil vaporises in a heated pot; common on older cookers and some room heaters; sensitive to fuel quality and draught.
328 words, about 2 min06Combustion and Flue Gas Analysis
Complete combustion of oil produces carbon dioxide and water vapour. Incomplete combustion produces carbon monoxide, soot and unburnt hydrocarbons.
297 words, about 1 min07Burner Components and Settings
Pump - draws oil, raises pressure, and contains the pressure regulating valve and solenoid. Nozzle - sets the flow rate and spray pattern; rated in US gallons per hour at a stated pressure (commonly 100 psi / 7 bar).
356 words, about 2 min08Installation of Oil Fired Appliances and Systems
Installation questions test whether you consider the whole system : fuel supply, flue, ventilation, electrical supply, condensate, access and clearances. Base and clearances : appliance on a suitable non-combustible base with service access and manufacturers' clearances to combustible materials.
306 words, about 2 min09Flues, Ventilation and Combustion Air
A flue must carry products of combustion safely outside while maintaining adequate draught. Know the difference between natural draught and fan-assisted (balanced) flues , and between open-flue and room-sealed arrangements.
1,201 words, about 6 min