Commercial Gas Toolkit

Commercial Gas Toolkit is a professional calculation and reporting app built by a UK Gas Safe engineer, for commercial gas engineers. Designed for real site use, the app replaces manual paperwork with fast, accurate calculations and clear professional reports — without guesswork. 🔧 Core calculation tools • Installation Volume (IV) calculation Accurately calculate total installation volume for commercial and industrial gas pipework. • Strength testing calculations (guided test) Calculate required test pressures and durations, with a guided strength test workflow to help you follow the correct testing sequence on site. • Tightness test duration (guided test) Calculate tightness test times quickly and consistently, with a guided tightness test that walks you through the process step-by-step. • Purge volume and purge time calculation (guided test) Calculate required purge volumes and purge durations, with a guided purge workflow to support safe commissioning and recommissioning. • Gas rate calculation Fast gas rate calculations to support appliance input verification. • Ventilation calculation Calculate minimum ventilation requirements for commercial boiler rooms and plant spaces. All calculations and guided workflows have been cross-checked against traditional manual methods and verified by working commercial gas engineers. 📄 Professional PDF reports Generate clean, consistent PDF reports directly from your calculations: • Add your company logo • Customise header colours to match your branding • Clear layout suitable for clients and site records • Share PDFs via email, WhatsApp or cloud storage Important: PDFs generated by this app are calculation records only. They are not certificates and do not replace CP12, CP16, CP17 or any other statutory documentation. 🧰 Built for site work • Guided test workflows for strength, tightness and purge • Fast input with clear outputs • Pass / fail logic where applicable • Calculation history saved on device • Works offline • No adverts • Designed for professional daily use on site 👷 Who this app is for • Commercial Gas Engineers • Industrial Gas Engineers • Heating & Mechanical Contractors • Engineers carrying out testing, commissioning and servicing ⚠️ Professional responsibility This app is a calculation and guidance aid only. Users remain responsible for: • Correct data input • On-site testing procedures • Compliance with Gas Safe registration • Adherence to current UK standards and regulations