Be in Control of Your Comfort With This 2-Stage Switch for Dual Element Heaters Schwank Two Stage Switches allows you to control each heating element of your electricSchwank dual element heater. Turn each element on or off by flipping a switch. Flipping one switch gives half the power capability and flipping both on provides full power capability, resulting in a high and low heat setting. Each heater requires a dedicated switch. Available in single or dual, for one or two heaters. Choose a two stage control switch based on how and where it will be installed, in-wall or surface mount. If installing indoors and in outdoor protected areas, a weatherproof cover is not needed. Multiple switches may be needed for controlling more than two heaters. This is perfect for those looking for a simple and affordable control option.