Hot Water Underfloor Heating - Does the Boiler or Manifold Deal With Temperature? Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[keithpeirce]

Do I need a separate feed from the boiler for underfloor heating? I understand it works at a lower temperature. So how does that happen if it comes off the central heating circuit? Or does the manifold sort out the temperature? K

[htg engineer]

The manifold should have a mixer valve with 3 ports, it'll circulate itself with it's own pump - mixing the return and flow to get the desired temperature.

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