can 400 volt appliance run of 230 volt mains? any electritions??

Question

ive just bought a instant water heater the type you get in pub toilets, any way ive just realised it is the 7kw version that runs of 400 volts, the problem is my power supply is only 230 volts
was wondering if i connected it too my power supply would it run of 230 v or would this cause a overload and be potentially dangerous??????

Answer 1

It will run but it will only give you 1/4 the heat. You'll have to wait forever for the water to heat up so since it's a heat on demand unit, you probably won't get very warm water out of it..