Discuss Calculating pipe centres in the Water Underfloor Heating Advice area at Plumbers Forums

Similar to radiator dT's, is there a way to mathematically calculate the UFH pipe centres required to satisfy a given room's heat demands?

150mm-250mm centres are banded about online, with no real explanation, obviously smaller centres allow for lower water temps, but there must be a more scientific way on deciding the centres for a given scenario?
Tbh you can work it out eg via cibse ufh guide or via a paid software but I normally go 100mm centres and work out the flow rate etc eg 1kw needs 2.04 lpm

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