Underfloor Heating- Single Zone System
1) Screed or chipboard flooring should be laid immediately after pipe
laying to protect the pipe.
2) Concrete screed floors must be cured before any heat is applied, a
general rule of thumb is to allow 1 day per 2 millimetres of screed.
3) Timber floor with drymix infill can have heat applied immediately, the
drymix must be dried completely before laying the flooring.
4) Hardwood timber flooring must be ‘conditioned’ before fixing.
5) It is important to purge the pipework from the boiler to the manifold, to
avoid air being introduced into the underfloor heating system.
6) Initially start the system with the thermostatic valve set at min (35oc).
7) Increase the setting by 2o per day, up to a maximum of 50o for concrete
floors, max 65o for timber floors.
8) The flow & return from the boiler should be connected to the manifold
connections shown using compression couplings.
9) NOTE. When first starting up the system it may take 12-24 hours for the
heating effect to become apparent!