MKII Series – Explosion-Proof Gas Catalytic Heater (side mount controls) Our Cata-Dyne™ MKII Series explosion-proof catalytic heater has sleek side mount controls ideal for customers seeking to reduce costs with easier and quicker heater installation. MKII Series Catalog MKII Series Drawings MKII Series Owners Manual Posted in CATALYTIC HEATERS, PRODUCTS and tagged Catadyne, Catalytic, CCI Thermal, Explosion Proof, Gas, Heaters, MK II, Series, Side Mount Controls.