Lots of rugged construction found in the Giotto!
The boiler water level probe ascertains the level of water in the boiler.
The safety valve relieves excess boiler pressure if the pressure regulator
fails. The bleeder valve allows any vacuum pressure in the boiler to escape
during warm up. And, the resettable safety thermostat turns the power
off to the heating element if and when the boiler becomes unexpectedly
too hot!
