Heater count planning
How many electric heaters on one circuit?
Estimate heater count on a known socket, circuit or temporary supply rating before the kit arrives.
Safety boundary: this guide is for early planning only. It does not inspect hidden wiring, sign off an installation or replace a competent electrician.
Count simultaneous load
Do not count heaters in isolation. Add anything that runs at the same time and keep a warning margin rather than planning exactly to the breaker number.
Separate circuits matter
Two sockets are not always two separate circuits. If you are relying on separation, confirm it rather than assuming the wall layout proves it.
Use the count planner
Use the heater count planner to test common heater sizes against 13 A, 16 A, 20 A and 32 A supply options.
Equipment next step: if the load plan is realistic, compare electric heater sizes and keep the calculation trail with your site notes.