16 A heater supply

16 amp vs 13 amp temporary heater supply

When a 16 A temporary supply may be more suitable than trying to run larger heaters from 13 A sockets.

Safety boundary: this guide is for early planning only. It does not inspect hidden wiring, sign off an installation or replace a competent electrician.

The spare margin changes

At an 80% warning point, a 13 A supply gives about 10.4 A of working margin. A 16 A supply gives about 12.8 A. That can change whether a heater setup is realistic.

The connector is not the whole story

A 16 A socket still needs a suitable circuit, protection, cable route and equipment connector. Do not adapt plugs just to make kit fit.

Plan the supply before delivery

If the heater mix only works on 16 A or 32 A, confirm the supply before ordering or hiring the equipment.

Equipment next step: if the load plan is realistic, compare temporary heater options and keep the calculation trail with your site notes.

Run the load check