UL 296:11ED 2017-02-24

Foreword
Introduction
1 Scope
2 Units of measurements
3 Components
4 Glossary
Construction - mechanical
5 General
6 Servicing
7 Assembly
8 Bases
9 Fan housings and air tubes
10 Fire pots and vaporizers
11 Combustion air controls
12 Prepurge and post-purge
13 Draft regulators
14 Strainers
15 Constant-level devices
16 Floats
17 Fittings, and piping and tubing
18 Valves
19 Stuffing boxes
20 Gauges
21 Gas pilots
22 Manually-lighted burners
23 Antiflooding devices
Construction - electrical
24 Servicing and adjustment
25 Ignition systems
26 Electric high-tension ignition
27 Electric hot-wire ignition
28 Control applications
29 Primary safety controls
30 Electrical equipment
31 Field wiring
32 Internal wiring
33 Overcurrent protection of high-voltage control-
    circuit conductors
34 Overcurrent protection of transformers
35 Separation of circuits
36 Accessibility
37 Bonding for grounding
38 Mounting of electrical components
39 Electrical enclosures
40 Motors and motor overload protection
41 Switches and controllers
42 Capacitors
43 Electrical insulating material
44 Spacings - high-voltage circuits
45 Spacings - low-voltage circuits
46 Combination gas-oil burners
Performance
47 General
48 Measurements
49 Test voltage
50 Combustion tests
51 Combustion air failure test - test no. 3
52 Interruption of atomization - test no. 4
53 Undervoltage test - test no. 5
54 Power interruption test - test no. 6
55 Temperature test - test no. 7
56 Ignition tests, multiple ignitors
57 Ignition tests, electric high-tension
58 Ignition test, electric hot-wire
59 Ignition tests, gas
60 Ignition test, gas-electric - test no. 18
61 Ignition test, gas-electric high-tension
62 Ignition tests, gas-electric hot-wire
63 Ignition tests, manual
64 Ignition test, multiple-atomizer burner - test no.
    26
65 Ignition tests, multiple-vaporizer burner - test no.
    27
66 Return of ignition - test no. 27A
67 Seepage and burnoff test - test no. 28
68 Dielectric voltage-withstand test - test no. 20
69 Short circuit test - test no. 30
70 Overload test, high-voltage transformers
71 Burnout test, high-voltage transformers
Manufacturing and production tests
72 General
Marking
73 General
74 Instructions
Appendix
A Standards for components

This revision of ANSI/UL 296 dated January 8, 2021 includes Flexible Connector Piping for Fuels; 18.11

These requirements cover oil burners intended for firing appliances and devices such as boilers; central, floor, wall, and special furnaces; storage tank water, air, and direct-fired air heater units; and ovens.