I've seen system sizing software on other sites for free. Why do you charge for yours? Back
Actually our software is free for our customers. The program on our site is the most sophisticated and accurate you will find. It is based on the only standard acknowledged by our industry, the Manual J. What you are seeing on other sites is a simple calculator that uses square footage as its main criteria.
It may ask for more information but the sizing outcomes are not acceptable for use with any HVAC industry permitting or load calculation criteria. We offer a free estimator as well although, like the others, it is not comprehensive enough to accurately determine the needs of homes with dramatically different insulation values, climate types and construction quality.
An improperly sized heating or cooling system will limit your comfort, increase your energy costs and reduce the life of the system. Capacity is the single most important decision you will make in the selection of your next home comfort system. Try a few of these free calculators and you will see that they will give conflicting sizing information due to the fact that no standardized criteria is used.
Almost all are arbitrary and don't conform to industry standards. Our software required hundreds of hours of data input and has been given an "excellent" rating by an independent review. It factors in all pertinent data and provides clear, accurate answers to your heating and cooling sizing needs.
