Coming soon
The Manual
The Domestic Heating Diagnostic Manual
A comprehensive, colour, lay-flat technical guide to understanding, testing and diagnosing domestic heating-control systems.
About Heating Decoded
Heating Decoded exists to help competent people understand heating-control systems well enough to diagnose them with confidence.
Why it exists
Information is easy to find. Understanding isn’t.
There’s no shortage of wiring diagrams. What’s harder to come by is a clear explanation of why a system behaves the way it does, and a logical way to prove where it has gone wrong.
Heating Decoded brings together a printed manual and two apps around one method: understand the operating sequence, interpret the wiring, know what you should see, test safely, read the result and move on logically.
How we work
What we hold ourselves to
- 01
Understanding first
If you know how a system is meant to work, you can diagnose one you’ve never seen before.
- 02
Precise, not padded
Correct UK terminology, approved diagrams shown exactly as approved, and no overclaiming.
- 03
Safety is part of the method
Safe isolation and correct testing are built into every pathway, not added as small print.
- 04
Honest about status
Every product shows where it really is. Nothing is described as available before it is.
The family
One book, two apps
Planned sections
- Fault AtlasGuided fault-finding pathways
- SystemsS-Plan, Y-Plan and S-Plan Plus
- ComponentsWhat each control does
- TestingStructured test explanations
- Quick referenceKey information at a glance
In development
The Diagnostic App
Heating Decoded
Learn how heating systems operate, follow structured fault-finding pathways and access electrical-control reference material.
Planned sections
- IdentifyWhich control is on the wall
- CatalogueSearchable parts information
- ControlSwapDocumented compatibility
- MerchantsLinks to relevant listings
- FavouritesProducts you've saved
In development
The Part Finder App
Heating Decoded Part Finder
Identify heating-control products, access relevant merchant listings and use ControlSwap to explore documented compatibility information.
The publisher
Who’s behind it
Heating Decoded is published by Project50 Ventures Ltd, a UK company registered in England and Wales (company number 17500452).
Questions about Heating Decoded?
Get in touch, or register your interest in the manual and the apps.