low_and_there Posted January 7 Share Posted January 7 We've had an in-slab UFH system installed in the new kitchen but for the rest of the ground floor we're going with an overlay system - the slab pipes are 16mm but I was hoping to use 12mm for the overlay (with tighter pipe centres). Anyone know if it's possible to use the same manifold with a reducer for the 12mm loops or is that a dumb idea / won't work? Thanks! Link to comment Share on other sites More sharing options...
JohnMo Posted January 7 Share Posted January 7 (edited) Really wouldn't waste your time with 12mm. Make them all 16mm. 12 and 16mm all install with Euro cone connectors so will install on same manifold, just a matter of ordering the correct parts. But as said 16mm output is better so don't waste your money. Hope you have plenty of insulation under the UFH. Edited January 7 by JohnMo Link to comment Share on other sites More sharing options...
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