On my Thermostatic Radiator Valve what temperature do the number settings 1-6 represent?
I have honeywell vt117 TRV fitted with number settings 1 to 6 with an economy button set at number 3. If my thermostat downstairs is set to 21C for example; what temperature will the numbers on the TRV represent?
If memory serves me right the red button is at 18C and the settings are 2 degrees apart.

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