HVAC ToolKit vs RefCert

The HVAC ToolKit is an easy-to-use app that has been created to assist HVAC engineers in checking their designs and making quick calculations and estimations. The app includes helpful calculation tools for calculating friction losses in ducting, pipe sizing, parking ventilation, staircase pressurization, and estimating heat loads, pump head, fan ESP, among others, where the user is able to enter the required inputs and is given the calculated output. Each tool also includes instructions and abbreviated formulas that have been used to calculate the results. The app can be set to metric or imperial units and/or to the English or Arabic language. Users are expected to have some knowledge and understanding of HVAC engineering in order to use the tools properly. Users are also expected to check that the results are within an acceptable range for their respective projects. If you come across any inconsistencies while using the app or have any recommendations for additional inclusions, please contact us.

RefCert is a professional commissioning and certification platform designed exclusively for HVAC contracting businesses, mechanical engineering firms, and facilities management companies. Built for field engineers and commissioning technicians, RefCert streamlines the entire commissioning workflow — from site setup through to final certification report — replacing paper-based processes with a fast, reliable mobile-first tool. Key Features: -Create and manage multiple client sites and job numbers -Record outdoor and indoor unit specifications, model numbers, and serial numbers -Log F-Gas refrigerant data including charge weights and CO₂ equivalents -Capture strength tests, pressure tests, and vacuum readings -Record live commissioning data: discharge/suction pressures, air-on/air-off temperatures -AI-powered technical manual lookup for instant access to installation guides and error codes -Generate professional PDF/Excel commissioning reports for clients and compliance records -Full offline support — works on site without internet connectivity -Dark mode support- Who is RefCert for? RefCert is sold directly to HVAC contracting companies and engineering organisations for use by their employed technicians and field engineers. It is not a consumer application. Subscriptions are purchased by the business through our website, and access is then provided to the company's engineering team. RefCert helps businesses meet industry compliance requirements, reduce paperwork, and deliver professional commissioning documentation to their clients.