Page 475 - The City and Guilds Textbook: Plumbing Book 1 for the Level 3 Apprenticeship (9189), Level 2 Technical Certificate (8202) and Level 2 Diploma (6035)

Chapter 7 Central heating systems

Fire valve
Stop valve Flue
Control box
Oil pump Heating
Oil tank Stop valve flow

Water
jacket
Heating
return

Filter Blast tube Boiler lining

p Figure 7.32 A pressure jet oil burner installation

Vapourising burners
Vapourising burners work on gravity oil feed. There is no pump. The oil flows to
the burner, where a small oil heater warms the oil until vapour is given off and it
is the vapour that is then ignited by a small electrode. As the oil burns, vapour is
produced continually, which keeps the burner alight.
They are generally used only in oil-fired cookers.

Flue

Heating
flow
Oil tank Stop valve

Water
jacket
Fire valve
Stop Heating
return
valve

Filter Oil flow Vapourising burner
control

p Figure 7.33 A vapourising oil burner installation

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