Listed to UL499 Standard by MET

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

  • Plug-n-Fire

  • 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


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.