PROFESSIONAL GAS ENGINEERING CALCULATOR

GasTech Calculator Pro is the ultimate professional toolkit for Gas Safe registered engineers, heating technicians, and HVAC professionals. Featuring 9+ specialized calculators with full British Standards compliance.

CORE PROFESSIONAL CALCULATORS

Volume to Energy Converter
Gas volume to energy conversion with temperature and pressure correction for accurate calculations.

Professional Pipe Sizing
BS 6891:2015 compliant calculations using Renouard Formula. Supports copper, steel, and polyethylene pipes with pressure drop analysis.

Gas Safe Rate Calculator
Three-mode conversion between m³/h and kW with gas meter testing and reading verification tools.

Pressure Unit Converter
Convert between 11 pressure units: mbar, kPa, psi, pascal, bar, atm, mmHg, torr, mmH2O, inH2O, inHg. Includes UK Gas Standards reference and tightness test calculator.

Heat Load & Radiator Calculator
Complete heat loss calculations with U-values from Pre-1920 buildings to Passive House standards. Includes boiler sizing recommendations.

EXTENDED PROFESSIONAL TOOLS

Heating Cost Analysis - Multi-fuel cost comparison with efficiency recommendations
Energy Efficiency Assessment - EPC ratings and savings recommendations
Professional Boiler Sizing - Advanced sizing with load calculations
Ventilation & Flue Pro - 6-tab professional toolkit with BS 5440-2:2023 compliance

VENTILATION & FLUE PRO - 6 ADVANCED TOOLS

1. Standard Ventilation & Flue - BS 5440-2:2023 calculator with safety verification
2. Extract Fan Calculator - Mechanical ventilation credit calculations
3. Multi-Room Ventilation - Advanced multi-room calculations
4. Unit Converters - Gas engineering specific conversions
5. Flue Terminal Position - BS 5440-1:2008 clearance validation
6. Advanced Professional Tools - PSV sizing, Adventitious Air, Flue Gas Analysis

SMART SCIENTIFIC CALCULATOR

Advanced scientific functions, unit converters, percentage calculator, date calculator, comprehensive calculation history with export, iPad-optimized layout.

PROFESSIONAL FEATURES

British Standards compliant (BS 5440-2:2023, BS 6891:2015)
Gas Safety Regulations compliance
Gas Safe Register 2024-2025 requirements
Complete calculation history with export
Dark mode support
Works completely offline
No data collection - complete privacy
Professional 9-color design system
Customizable units and precision

PERFECT FOR

Gas Safe Registered Engineers, Heating & Ventilation Technicians, HVAC Professionals, Plumbing Engineers, Building Services Engineers, Gas Training Instructors, Engineering Students.

TECHNICAL EXCELLENCE

Native iOS app built with SwiftUI
SwiftData for reliable data persistence
Professional responsive layouts for iPhone and iPad
Optimized for iOS 17.6 and later

STANDARDS COMPLIANCE

All calculations follow current British Standards (BS 5440-2:2023, BS 5440-1:2008, BS 6891:2015) and Gas Safety Regulations, ensuring professional accuracy and legal compliance.

PROFESSIONAL VALUE

Save hours on manual calculations. One comprehensive app replaces multiple calculators and reference materials. Essential for efficient site work and professional documentation.

SPECIAL LAUNCH OFFER

Introductory price £4.99 (regular price £6.99)
One-time purchase - no subscription required
No in-app purchases
Free updates with new features and standards

Download GasTech Calculator Pro today and transform your gas engineering workflow with the most comprehensive professional calculator app available for UK gas professionals.