Calculate room by room loads
For room-by-room loads, There are software versions of it Even though it was originally intended to use hand written forms and worksheets, it is now virtually mandatory to use a computer method (unless your are extremely accurate and patient – the type of person who can fill out complicated tax forms by hand.).
The two available software packages (Right-Suite2 and Elite3) have very sophisticated features allowing Computer Aided Design (CAD)-based take-offs for window and wall areas. This makes very easy and quick work of entering physical building data if you have access to an architect’s CAD files. The software packages allow you to import a CAD floor plan of the home and essentially trace over it to create the rooms and zones.
Windows and doors are drag-and-drop components. If you do not have access to the architect’s CAD files, you can use the software to do a pretty reasonable job of recreating the floor plan of a house. These software packages also have useful duct layout drawing features.
The underlying concept of room-by-room loads is that each room, or area served by a supply register, is treated as an individual load. This provides for a very accurate determination of how to distribute the air. If air is distributed proportionally to each room’s load, then each room will be conditioned appropriately; resulting is even temperature distribution across a home. It’s not perfect in reality. However, it is the best method we have right now and works quite well for most production homes. The more complex and “broken up” the house layout is architecturally, the less this assumption is applicable.
For room-by-room loads, There are software versions of it Even though it was originally intended to use hand written forms and worksheets, it is now virtually mandatory to use a computer method (unless your are extremely accurate and patient – the type of person who can fill out complicated tax forms by hand.).
The two available software packages (Right-Suite2 and Elite3) have very sophisticated features allowing Computer Aided Design (CAD)-based take-offs for window and wall areas. This makes very easy and quick work of entering physical building data if you have access to an architect’s CAD files. The software packages allow you to import a CAD floor plan of the home and essentially trace over it to create the rooms and zones.
Windows and doors are drag-and-drop components. If you do not have access to the architect’s CAD files, you can use the software to do a pretty reasonable job of recreating the floor plan of a house. These software packages also have useful duct layout drawing features.
The underlying concept of room-by-room loads is that each room, or area served by a supply register, is treated as an individual load. This provides for a very accurate determination of how to distribute the air. If air is distributed proportionally to each room’s load, then each room will be conditioned appropriately; resulting is even temperature distribution across a home. It’s not perfect in reality. However, it is the best method we have right now and works quite well for most production homes. The more complex and “broken up” the house layout is architecturally, the less this assumption is applicable.
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