Practical limits

For people who need temporary kit running today.

Use FRZ when a room is cold, damp or overheating and someone is about to plug in heaters, dehumidifiers, fans or portable AC. It helps you check the load before the job turns into tripped breakers, hot extension leads or guesswork.

Shops, workshops and landlords

If you manage a small site and do not have an electrician standing next to you, this gives you a plain load check to start the conversation.

Send the numbers on

Copy the load summary and send it to your manager, landlord, electrician or hire supplier before equipment is used.