Is it OK to cut the plug off the heaters? Richard Martin 06 February 2023 16:43 Updated Your electrician may cut the plug off the heater in order to connnect it to your fixed wiring without voiding the warranty. Related to Plugs Related articles Are IR Heaters Safe? Select XLS Panel not heating up Can I pair multiple heaters to a thermostat? How to pair Select XLS Panels with XLS Thermostats Optimise your heating using a Herschel thermostat and PIR sensor