This is a general purpose calculator that helps estimate the BTUs required to heat or cool an area. The desired temperature change is the necessary increase/decrease from outdoor …

Our free, online HVAC load calculator allows you to quickly determine the amount of heating and cooling a residential building needs based on its specs and design.

An easy-to-use HVAC tool for calculating necessary thermal output capacity (in BTUs) This tool is based on the square foot method, with computations added for the most important values …

This HVAC Load Calculator estimates the size of your heating and cooling system in BTU's. The heat load estimate is based on your climate region, total square footage.

May 14, 2025 · Estimate heating and cooling loads for your home with our HVAC Load Calculator. Get BTU/hr values and system size suggestions based on your building details.

A comprehensive suite of free online HVAC calculation tools for professionals, contractors, engineers, and students. Includes calculators for AC sizing, BTU load, ductwork, and more.

Calculate monthly and yearly running costs for AC, furnace, or heat pump based on local utility rates and usage.

Our free, easy-to-use HVAC load calculator will help you determine the necessary thermal output capacity in Tons and BTUs of any residential home.

Calculate HVAC load based on room size, insulation, and climate. Get the right BTU estimate to choose the best heating and cooling system for your space.

This will be used for best HVAC system recommendation for you – both type of heating/cooling system, and size in BTUs based on Heating & Cooling BTUs requirements.