I have had underfloor heating installed in a kitchen extention. The builder installed a thermostatic mixer valve to feed this. The flow through this valve appears to be inadequate to heat the floor. If I bypass the valve the floor gets hot so the pipework is ok. I have stripped and cleaned the valve and set it to max heat to no avail. If I replace the valve what water temperature should I be aiming for. Can anyone recommend a suitable valve.
- posted
19 years ago