GET IT RIGHT: Duct fitting construction has a large influence on its equivalent length and which air duct calculator setting you choose. The fitting on the left has a much higher equivalent length due ...

Developers and owners of residential homes are generally keen on keeping heating and cooling costs as streamlined as possible without sacrificing performance. A properly sized system costs less to run ...

Some conversations with like-minded HVAC professionals have a way of taking on a life of their own, especially when they’re from another country. I recently had a discussion with an HVAC contractor ...