Install Instructions

9
Circuit breaker size and circuit wiring should be designed to 125 percent of heating mat load: •
-20 amp circuit for load up to 16 amps
-30 amp circuit for load up to 24 amps
-40 amp circuit for load up to 32 amps
-50 amp circuit for load up to 40 amps
-70 amp circuit for load up to 50 amps
Follow NEC, CEC, and local code guidelines for branch circuit wiring, conduit, and junction box installations.
•
Outdoor and underground junction boxes and conduit must meet rain tight or watertight requirements as required.
STEP 1.8
Insulation is not recommended underneath your slab. Improper type or use may cause cracking of the slab and possible
damage to the ProMelt Mat/Cable.
ProMelt Mats and Cables can be installed in or
under a variety of surfaces
ProMelt under brick pavers
ProMelt embedded in asphalt ProMelt embedded in concrete
ProMelt under tile
(see "Phase 4-Finish Surfaces for more specific information)