Nest and Heatmiser UH4 compatibility.

15 Jul 2018
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United Kingdom
Hi all,

Just wondering if anyone has used a Heatmiser UH4 wiring center to connect 2 Nest zones for UFH and a radiator zone.

I know they are compatible together, but not sure how the Nest hot water connection works.

The wiring center has connections for the Hot Water stat. I'm sure the Nest replaces that. So does that mean the Nest heat links connects to the wiring center Hot Water stat connection, or directly to the Hot Water zone value?

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