Questions tagged [ul]
2 questions
5
votes
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What is the difference between being UL recognized and being UL listed?
A product can be UL recognized or UL listed. I understand that there is some difference between these two things, but I have never had a full and clear explanation of the difference. What is, in fact, the difference?
Stephen Collings
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What surface temperature (rise) is required to (dis)qualify a combustion appliance from obtaining a "zero clearance to combustibles" rating?
How far must the surface temperature of a UL-listed combustion appliance rise to prohibit the manufacturer from specifying it for a zero clearance to combustibles installation?
(I looked in UL 127 but was unable to find a straightforward answer…
ThreePhaseEel
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