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 Select XLS Panel not heating up Why is heater voltage important? Are IR Heaters Safe? Herschel XLS Thermostat Instructions How do I unpair an existing pairing?