I want to know if I run two outdoor halogen heaters 1300w or 1500w off an isolation switch which is 13A will I be overloading the circuit if it has a 500w light on it aswell.............The 500w light is fitted already but I want to put two heaters up aswell...
It would be overloaded and also Part L would likely not permit it and it would also come under Part P and I would not fancy your chances of a building inspector approving the work.
Eric
so if i just run one halogen heater off the light switch which is 13A fused which has the 500w light it should be ok as long as the heater is below 2500w.........if i need another heater I would need to run it off a plug with a long cable