Listed to UL499 Standard

certified and listed kiln models in all voltage & phase combinations

Kilns that are c-MET-us Listed (US and Canada)

  • Easy-Fire
  • Jupiter
  • DaVinci
  • School-Master
  • Doll/Test Kilns
  • eQuad-Pro
  • Fuego Kilns
  • eFL Series
  • The Vent-Sure kiln vent system is listed for use with all our listed kilns.

Kilns that are MET-us Listed (US Only)

  • Easy-Load

Kilns that are not listed

  • JH Series Kilns
  • Jumbo Bell-Lift Kilns
  • Special model DaVinci Kilns with six or more sections (like T3454-BL Bell-Lift kiln)
  • Special model Jupiter Kilns with six or more sections
  • Custom Kilns
All wire sizes and component sizes are sized and selected according to UL499 and National Electrical Code Standards but the kilns are not listed.

Is certification to UL499 standard required?

  • The ultimate authority for this is a local authority such as a local code official.
  • Usually, it is not a requirement but this does vary from jurisdiction to jurisdiction.
  • If you are planning to buy a kiln that is not listed to UL499 standards you should check with your local code inspector to be certain.
  • Generally speaking, this is only a requirement in public or institutional and sometimes industrial buildings.

Official statement

  • All Jupiter, Easy-Fire, School-Master, Doll/Test, eQuad-Pro, Fuego, eFL Series, and DaVinci are listed to UL 499 Standards for both the US and Canada by MET (An NRTL - Nationally Recognized Testing Laboratory).
  • The Vent-Sure vent is listed in both the US and Canada for use with L&L listed kilns. UL 499, CSA C22.2, No. 122, CSA C22. Listing No E112742.
  • Easy-Load kilns are listed to UL499 Standards in the US only. MET Listing No E112742.

Certification Record

Click here to download our listing certification.
Click here to find out more about MET Laboratories.

Are L&L Kilns CSA Listed?

  • Kilns that are c-MET-us listed are approved for use in Canada.
  • c-MET-us means that the kiln has been tested and certified to Canadian CSA standards by MET (which is a Nationally Recognized Testing Laboratory CSA is also one of these laboratories and they have their own specific mark.

How About Options such as Solid State Relays?

  • State Relays are c-MET-us listed on c-MET-us listed L&L kilns (not yet on Easy-Load kilns)
  • Almost every option is covered by our listing. Any exceptions will be noted.