Heaters LH – Line Heater More Info CHS – Heating Package More Info MLH – Micro Line Heater More Info MKII Series – Explosion-Proof Gas Catalytic Heater (side mount controls) More Info SS – Sure Seal Pipeline Systems More Info WXS Series – Explosion-Proof Gas Catalytic Heater (slim line) More Info WX Series – Explosion-Proof Infrared Gas Catalytic Heater (standard unit) More Info BX Series – Infrared More Info