• Cabinet size 18” high, 9” wide. • Bottom In - Front Out air flow. • Wall mounting bracket supplied. • Units cannot be operated in room ambients exceeding 104OF (40OC). • Heavy duty 16 Gauge steel with gray epoxy textured powder coated finish. • 9” minimum clearance from bottom of heater to floor required. • Stainless steel cartridge element inserted into Aluminum finned Copper sheath. • Standard unit (without EPET thermostat or control section) is NEMA 4 rated.