Load Compensation - Enhanced load compensation is a feature that automatically adjusts the temperature of the water leaving the boiler and entering the heating system (radiators or underfloor heating).
It works with a room thermostat to determine the amount of energy needed to reach the desired temperature. This means that when the user-set room temperature is not far above the current temperature, only a small increase is required to meet the set level. As a result, the boiler will work at a reduced output to use the minimum amount of energy needed.
This helps to give you the perfect temperature as well as improving the longevity of your boiler as your system is not having to work as hard. Load compensation is a relatively common feature on modern thermostats, but certainly worth checking the manual to see if your control offers this.
Weather Compensation - The weather compensation feature on Vaillant’s smart controls uses weather forecast data to understand the outside temperature. It then adjusts the heat going to the radiators or underfloor heating system for optimum efficiency.
When the outside weather temperature is forecast to drop, a Vaillant smart control will increase the temperature going to your heating system to ensure it reaches the temperature set for optimum comfort. Likewise, when the temperature is forecast to rise, the weather compensation feature reduces the output of the boiler to ensure it is operating with maximum efficiency.
The VRC 700 can work more accurately, as it can be fitted with an outside sensor. This sensor ensures the weather compensation feature is using live data for ultimate heating comfort and efficiency.
If your thermostat has this function, some smart controls learn the thermal behaviour of the building and use weather compensation to ensure that when you want between 18°C and 21°C, you get it automatically.