The available static pressure of your blower plays a huge role in making sure the HVAC system is able to perform optimally. After performing the Manual-J calculation, you know how many btu’s of energy will be required to keep each room of your home comfortable. This total btu requirement, or “load,” is used to select [...]
Friction Rate The friction rate tells us how much friction our ductwork should produce, per 100’, so that we consume the rest of our available static pressure (ASP) budget with our specific layout. The idea here is that we’re working backwards so that we can land on our selected ASP when all is said and [...]
Manual-J Heating and Cooling Load Calculations Manual-J is the name for a specific protocol (often called “Heat Load Calculation” or “Cooling Load Calculation“) used to determine how much heating/cooling a home needs to stay cool and dry in the summer and warm in the winter. This load calculation process was developed by engineers in the heating [...]
Not only do homeowners want an efficient house, but they also assume that they will be comfortable in every room of the house. Unfortunately, this simple desire cannot be addressed solely by a great envelope system. To achieve comfort in every room, focused attention must be paid to proper design and installation of the HVAC system.