UL 737:10ED 2011-04

FOREWORD
INTRODUCTION
1. Scope
2. Glossary
3. Components
4. General
5. Materials
6. Assembly
PERFORMANCE
7. General
8. Test Installation
9. Temperature Measurement
10. Fire Tests
11. Radiant Fire Test
12. Brand Fire Test
13. Flash Fire Test
14. Glazing Test
15. Strength Tests
16. Stability Test
FIREPLACE STOVES FOR USE IN MOBILE HOMES
17. Installation
18 Chimney
19 Spark arrester
20 Combustion air inlet
21 Test structure
22 Test method
23 Drop test
BLOWER ASSEMBLY
General
24. General
Construction
25. Enclosure
26. Mounting of Electrical Components
27. Field-Installed Blower Assemblies
28. Field Supply Connections
29. Grounding
30. Internal Wiring
31. Separation of Circuits
32. Bonding for Grounding
33. Capacitors
34. Insulating Material
35. Motors and Motor Overcurrent (Overload) Protection
36. Switches and Controllers
37. Transformers
38. Spacings
Performance
39. Test Voltages
40. Temperature Measurements
41. Input Test
42. Temperature Test - Electrical Components
43. Dielectric Voltage-Withstand Test
44. Leakage Current Test
45. Stalled Motor Test
46. Strain Relief Test
47. Short-Circuit Test
48. Knockout Test
Manufacturing and Production Tests
49. Production Line Dielectric Voltage-Withstand Test
50. Production Line Grounding Continuity Test
MARKING
51. General
52. Marking Performance Tests
INSTALLATION INSTRUCTIONS
53. Installation and Operating Instructions
APPENDIX A
Standards for Components

This revision of ANSI/UL 737 dated February 25, 2020 includes the following changes in requirements: – Addition of reference to UL 62368-1 as an alternative to UL 60950-1; 3.9.1 and 3.9.2.

1.1 These requirements cover fireplace stoves that are freestanding assemblies having fire chambers intended to be operated open to the room or, when equipped with doors, to be operated with the doors either open or closed.