Rory,
The units are Heatmisers - albeit they may be badged under a different brand name. My understanding is that Teabag wants to use Nest so he /she is removing the 12v UFH 8 RF unit and the Neo Air stats and replacing it with the 240v UFH 4 unit coupled to Nest. I assume he is doing this because Neo Air which is compatible with the UFH 8 RF don’t include smart TRV’s in their range to control the radiator circuits (you have to use air stats and zone valves) An alternative would be Evohome to control everything - but that is In a different price league.
It is a fairly straightforward change, provided you wire the UFH 4 (240v) correctly and don’t just copy the 12v UFH 8 RF wiring.
The units are Heatmisers - albeit they may be badged under a different brand name. My understanding is that Teabag wants to use Nest so he /she is removing the 12v UFH 8 RF unit and the Neo Air stats and replacing it with the 240v UFH 4 unit coupled to Nest. I assume he is doing this because Neo Air which is compatible with the UFH 8 RF don’t include smart TRV’s in their range to control the radiator circuits (you have to use air stats and zone valves) An alternative would be Evohome to control everything - but that is In a different price league.
It is a fairly straightforward change, provided you wire the UFH 4 (240v) correctly and don’t just copy the 12v UFH 8 RF wiring.