How to Fit a Thermostatic Mixer Shower (UK)
Install a bar or concealed thermostatic mixer shower. TMV2 approval, pipe centres, first fix.
BristanGroheAqualisaMiraHansgrohe
Pipe centres
Bar mixers require 150 mm ±10 mm centres — hot on the left. Use a wall-mount jig to guarantee alignment.
First fix
Copper stubs, capped at 150 mm centres, projecting 40 mm from finished wall. Add S-unions to fine-tune spacing at second fix.
Frequently asked questions
- Does a mixer shower need pressure balancing?
- Only if hot and cold pressures differ by >0.5 bar — gravity systems typically fine; combi systems always balanced.
Shop the spares
Browse shower spares — 5,410 live parts.
View Shower Spares