Heater switches can be found online at major retail websites, such as Amazon.com and Alibaba.com. Heating switches are commonly purchased to replace factory installed power switches that become defective over time and generally are designed to be easy to install.
A heating switch is generally installed directly onto a unit or attached to a wall plate that connects to the unit. Switches that attach to a heater directly usually have a LED light to allow owners to find the switch in the dark. Switches housed in a wall plate are commonly styled to blend in with the wall plate and sometimes have more than one switch on each plate.