HVAC ToolKit vs cFormula

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.

Customize formulas and calculate at any time. I want to calculate using formulas, but most apps have built-in formulas. There are countless formulas in the world, and it is not easy to find the formula you need to use. Now you can create your own formula within 1 minute. Just 3 steps: 1. Take a photo or select a formula image in the album. 2. Add variables. 3. Enter an expression containing variables. The formula creation is completed, and the calculation is completed instantly by inputting the numerical value of the variable. 【 Main functions 】 ——Take pictures and crop them. ——Select an image and crop it. ——Set formula variables, support uppercase and lowercase letters in English and Latin, and support subscripts. ——A dedicated keyboard for expression input, simple and easy to use. ——Check the expression and prompt for incorrect positions. ——Number specific keyboard, clear and easy to use. ——Supports angle or radian calculation settings. ——Supports calculations such as arithmetic, exponent (power), root, trigonometric function, logarithm, etc. ——Support Scientific notation and factorial calculation. ——Supports constant inputs such as e and π. ——ICloud cloud synchronization creates formulas that are shared across multiple devices and can be used anytime. ——Support restoring after deletion. The deleted formula will be permanently deleted after 30 days. Tip: 1. The simplest formula is to have no images, no variables, and only expressions. You can use it to calculate mathematical formulas with fractions and multiple parentheses. Can be used all at once, next time clear the expression and input a new one. 2. The image of the formula is used to compare the input variable values during use. You can take photos of formulas on books, computer screens, or handwrite them. You can also use other software to edit screenshots of formulas. 3. The dedicated keyboard for expression input is for convenience and ease of use. You can also paste functions that the keyboard does not support in the expression input box, which may bring surprises.