How many amps does a 3kW immersion heater use?
stevehayes. just a quick question-a 3kw immersion heater at 240 volts will use 12.5 amps – so will a 13amp fuse be sufficient in the spur socket?Click to see full answer. Keeping this in consideration, how many amps does an immersion heater use? 15 amp what MCB size would an immersion heater require? It is…
stevehayes. just a quick question-a 3kw immersion heater at 240 volts will use 12.5 amps – so will a 13amp fuse be sufficient in the spur socket?Click to see full answer. Keeping this in consideration, how many amps does an immersion heater use? 15 amp what MCB size would an immersion heater require? It is OK to use 13A or 16A timers on a 20A MCB immersion circuit – assuming that the immersion load is within the timer’s current carrying capacity. Similarly, what size cable do I need for a 3kW immersion heater? The mains cable for an immersion heater is a two core and earth 2.5mm cable. This cable should run to a 20amp double pole isolator switch (With neon indicator light) from where a heat resistant 16amp cable or flex should run to the heater.Is it cheaper to leave an immersion heater on?It’s better to leave the hot water heater on all the time, rather than turning it on and off. Your immersion heater or boiler will heat up hot water which is stored in a tank. As long as the tank has a good insulating jacket, it will keep the water hot all day, without needing to be constantly reheated.
