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Discuss Heatmiser UFH Automation in the Water Underfloor Heating Installations area at

I have a job I will be asking a plumber to do but would like to understand what is involved so I can see if the end result will meet my expectations.

I have fully operational Underfloor heating system which I love but am looking to integrate into my smart home system.

Currently it is controlled by
  • Heatmiser UH3 8 Zone Wiring Center
  • 4 x Heatmiser Slimline (Digital Thermostat). I think these are
    TM1-N V3. Picture attached
While the time programming is great, we are in and out of the house at very irregular intervals meaning we are paying for a lot of heating when we are out of the house for hours because we're too lazy/in a rush to turn each individual thermostat off.

What would be the easiest / cheapest way of converting this system to something which could be controlled by home automation? I'm very techy (a programmer by trade) so happy to dive in to raspberry pi wifi or rs232 solution if that avoids upgrading the whole thing to NeoAir or similar. Or would this be easier to achieve at the boiler side of the spectrum? (Vaillant ecoTec 832)

I won't need to do anything clever, just basically override the timers from the thermostats when a trigger (such as our home alarm being set) to turn the UFH system off.

Any advice gratefully received.

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