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The Honeywell V4043H valve must not be mounted with the powerhead below the horizontal level of the pipework
which most UK mains supplies satisfy
Required for SmartThings connectivity on this heat pump
The Slimline RI is not suitable for gravity-fed (open-vented) primary systems
Warmup Ultralight Electric UFH Insulation Boards - Heat Spreading Decoupling Acoustic Quantity:WCI-06 The Honeywell V4043H valve mustThe Warmup Ultralight UFH Insulation Board is a 4 in 1 composite underfloor heating board that delivers insulation, heat spreading, decoupling, and acoustic performance in a single 6 mm sheet. Designed specifically for use beneath electric UFH systems such as the DCM PRO loose lay cable and StickyMat, it cuts heat up times by up to 78% and reduces running energy by up to 71% compared to installing on uninsulated concrete turning a two and a half hour
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