What is an offset?

There are 2 types of offset possible in the app. These are modifiers to the instructions sent and received by various devices, to modify how the system controls to a temperature.

Valve Hidden Offset

This offset is applied to a single Genius Radiator Valve and changes what temperature the Genius Radiator Valve controls to

When to apply this offset

This offset should be applied when a Genius Radiator Valve is not controlling to the correct temperature. In these cases, the radiators will not be controlling to the correct temperatures and so may turn fully off whilst the zone is still orange on the app (calling for heat). This could be due to a number of reasons such as:

In these cases, the Genius Radiator Valve should be offset to control to a higher or lower temperature, as required.

A worked example

In this scenario, apply a +1.5C offset to the ‘Hidden Valve Offset’ setting.

The valve will now remain open for longer to heat to an additional 1.5C than it would have without the hidden offset.
Note that the valve setpoint remains the same on the zone page, and on the Devices page. ‘Internally’ (to the valve) the adjusted setpoint is used.

How to set this offset

This offset is best set through the Doctor, found from the main menu of the app.

Alternatively, see here for instructions for setting the offset from the Devices Page.

Zone Temperature Offset

This offset is applied to an entire zone, and changes the measured temperature the Genius Hub uses to determine whether to bring the heating on for that zone.

When to apply this offset

This offset should be applied when a temperature measuring device is misreading the ambient temperature in a room. This can cause the heating to turn off before the set point is reached, or the boiler to continue running after the zone has turned blue (stopped calling for heat). This could be due to a number of reasons such as:

In these cases, the zone should be offset to adjust the temperature reported from the device to an accurate temperature for the zone to control to.

A worked example

In this scenario, apply a +2C offset to the ‘Temperature Offset’ setting.

The zone will now read 2C higher than the room sensor reports, thus bringing the zone temperature in line with what is expected.
Note that on the devices page the room sensor will show the unadjusted temperature.

How to set this offset

This offset is set on the zone setup pages, for the relevant zone. See here for instructions for setting the offset.