Hi I charge my iPhone 7 with a 3m Anker cable and iPad charger that's connected to a standard UK extension lead. I also have a 2Kwh fan heater on the same extension lead (not advised I know) but whenever I am charging my phone and running the heater my phone gets very very hot. I thought I had a faulty phone but after doing some tests I am 100% sure that the phone goes crazy hot when charging but only when the fan heater is running; my phone is fine when charging and the heater is off. For all those clever folks I can confirm that I am not sat with the phone in front of the fan heater! Is there an explantation?