Say farewell to the days of guessing equipment sizes based on square footage. Each building and every room has unique heating and cooling needs, making the Manual J a must have. This process accurately calculates heat loss and gain, ensuring the correct equipment selection with the assistance of Manual S. The Manual J is also crucial for a properly sized duct design. Our team meticulously examines each room's load requirements, resulting in a properly sized duct system. Don't be intimidated by the Manual J, because at Designair of Texas LLC, we have you covered! Our ACCA approved software will accurately calculate the heat gain and loss for your building. Experience the quality Manual J reports from Designair of Texas LLC - contact us now to get started on your Manual J!