How does
it work?

Underfloor wet heating is a very efficient form of heating the downstairs of a property and gives that extra feeling of warmth within the building and eliminates cold spots.

However, it does behave differently than traditional radiator systems as you have a longer gradual heat up time. Once its warmed up to the desired level it just needs topping up to maintain the heat.

The Sapphire Fully Modulating Boiler on OpenTherm multi zone controls really comes into its own and works perfectly with underfloor heating. This is thanks to the stainless steel construction that eliminates low return temperature corrosion, that is associated with other boilers.

With fuzzy logic that is incorporated into the system the hub will self-learn and calculate the heat times for each area of the property.

Underfloor zones have a wireless thermostat per area that again feeds back to the hub and calculates the heat load accordingly. It then sends the correct message to the boiler slave control and adjusts the output of the boiler correctly. This is called load compensation.