The app

See what it's doing,
from anywhere

Room temperature, hot water and where the heat is going, in one app. It reads your system every ten seconds and it never writes anything back to it.

How the system works

iOS, in testing. There's no public download yet.

Reports every10 seconds
Modes it namesFour
Written back to the systemNothing
The FirstLaw app, showing where the heat is going between the three units

What it is costing you

The app keeps its own record, so you can see what the system used and what it saved without waiting for a bill.

The energy screen of the FirstLaw app, showing monthly use and savings
Energy

What your system used, and what it saved against a conventional setup, day by day and month by month.

How to read it

It reads, it does not run

There's no path from the app to the machine. The system runs itself and the app watches. A stolen phone can't change how your home is heated.

A number on the screen is a measurement

A channel with nothing plugged into it says so, and a part that did not answer says that instead. An old reading fades rather than passing itself off as a current one, so you are never looking at yesterday and thinking it is now.

It can tell a quiet system from a broken one

Losing contact with a machine is not the same as the machine failing. The app separates the two, because only one of them needs somebody to go and look.

About these screens

These are real screens from the app, shown with example data for a home like yours. The system is still in prototype, so we have not photographed a customer installation yet.