![](http://cato-tech.com/wp-content/uploads/2014/07/07-automatic-frost-protection-GB1.jpg) |
Cato-Tech A/S heaters can be used for water tanks and valves. They are equipped with a bi-metal thermostat. This thermostat will automatically turn on the heat when the temperature drops down to a critical level. This will allow energy saving when ambient temperature is not critical. |