Willis Heater extension This tank acts like a

This tank acts like a vacuum flask connected to the water mains

- Chrome plated finish as standard

- For use with limestone chippings

- Trade Quality - Long Life Performance

) and hydrochloric acid-based drain clearing products

Willis Heater extension This tank acts like aHOW IT WORKS: The internal heating element, controlled by the integral thermostat, heats the water to a setting of about 40 deg. C. If no water is being drawn from the taps, the Willis Heater acts like a boiler in that it causes water to circulate around the path marked with yellow arrows heating up the water in the cylinder as it does so, and until the Willis Heater thermostat reaches the set temperature. When the hot taps are used, water is drawn