General guidance only — all construction work must be overseen by a supervising engineer This handbook is compiled from standards and laws with every source cited, andis being reviewed for certification by engineers Use it to know what to look at, what to ask and what evidence to request on site It is not an engineering determination and can't replace an engineer · Terms of use · Limitations of the handbook

Building systems

Water heaters and hot water

Page code P39 · 40 inspection criteria · 3 illustrations

A water heater is the only electrical appliance in the house that people touch while wet and barefoot. The unit itself is covered by the mandatory standard TIS 1693-2547 for safety only, but the installation method isn't law — it's a professional association standard plus recommen…

This page contains
The line to see first — the unit and the installation method are governed differently
Earthing and earth-leakage breakers — the parts that belong directly to the water heater
Cables and connection points must be allowed for when the wiring is run, not added later
Unit position, the wall it hangs on, and the water pipes
Installation day and handover day — six things to see with your own eyes
After moving in, and what to write into the contract

Read the full version free — log in first

The full version has step-by-step checks, pass criteria, the source of each criterion and illustrations · available only to logged-in members

This page can't be printed from the browser — use the "Print for site" button on the page (project name and location required)