Boiler Diagnostics
Complete fault code database · All manufacturers · GC lookup
Controls Database
Wiring, faults & installation guides
Gas Rating Calculator
1-minute gas rate calculations for imperial & metric meters
Heat Loss Calculator
Calculate heating requirements per BS EN 12831
Gas Pipe Sizing
Calculate correct pipe size per BS 6891
Manufacturer Contacts
Direct technical support numbers for all major boiler manufacturers
Safety Certificates
Generate professional gas safety certificates in 30 seconds
Gas Warning Notice
Generate official Gas Warning Notices (ID/AR/NCS) instantly
Unvented Hot Water Certificate
G3 Commissioning/Inspection Record for unvented storage vessels
Unsafe Situations
Complete safety reference with 120+ ID/AR situations
Gas Safe Technical Bulletins
Quick reference guide to TB numbers, safety alerts & official resources