I think I must be missing something, but what
This is my (mis)understanding…
This is my (mis)understanding…
- The HSE says that the ALL the water in the tank must be heated to 60c for at least 1hr each day to protect against legionnaires disease.
- I have never seen a DHW where the coil goes all the way to the bottom, or the immersion heater touches the bottom of the tank.
- Hot water rises, so only the water above the heat source will be heated.
- The thermostat is part way up the tank, so turns of the boiler or the immersion heater before the bottom of the tank is heated up.