Demonstrates how simple the wiring for these type of systems really is. Compare this diagram to the wiring diagram for your standard forced air furnace. Even the more complex wiring for the ICE-X™ CHARGER® unit is simple in comparison to a standard 90+ Furnace. Though most packages do not include wiring material, virtually every other component is included, such as this ICE-X™ HYDRO-PANEL® heating only system.