Kits currently in stock come with a 2nd hand tested serviceable heater assy. A lightweight electrical heater that would deliver heat exactly where it is needed; the Butterfly valve and Venturi area. By providing a point heat source in this critical area, ice formation is greatly reduced or eliminated. The system is designed to be ALWAYS ON, therefore eliminating the need for the pilot to remember to select heat on. There are two electrical elements within the unit, each generating 30 watts. It is possible to switch these independently if desired, where for example on a cowled installation you could use both for take off and descent/ landing and one for the cruise. Or just leave both on giving maximum protection all the time. Contents:1 x 2nd hand serviceable heater assy. 2 x Allen bolts. 2 x Switches. 2.5 mts wire. 1 x Fuse & holder 2 x Female bullet terminals 4 x Ring terminals 3 x Spade terminals 1 x M4 tap set & instructions. One unit required per carb, suitable for Jabiru and Rotax 912 engines.