Residential 5.0 is now compatible with Autodesk Building Systems (ABS). This allows you to easily import building information (using gbXML) from an ABS drawing and calculate the total cooling and heating loads. Then, you can export the total loads back to the ABS drawing so you can properly design the duct or piping system.

• The Residential 5.0 software has been entirely re-written to take advantage of the latest programming and back-end database technologies. In addition, the cooling and heating load calculations have been updated to conform with the ASHRAE 2001 Fundamentals calculations.
• A new and improved user interface (UI) has been designed making the input process much faster and more intuitive than previously. This improved UI includes a tree-like navigation area that allows the user to view all systems, zones, and areas and their relationships.
• Reports can be exported to XML format so that they can be shared with others across networks and operating systems other than Windows.
• The user can easily replicate entire projects so as to reuse common information.
• An additional 300 cities have been added to the weather database making the total 800.
• Individual areas can be grouped by zones for each system.
• An unlimited number of system and area templates can now be created so that the user can create new systems and areas using common data from the templates.
• The number of air changes can be specified for the system ventilation input.
• Boiler cooling and heating temperature differences and boiler efficiency values can be specified for each system.
• The user can perform cooling and heating equipment selection for each system.
• The software can easily integrate with third-party equipment databases used for the equipment selection discussed above.
• A local equipment database has also been added allowing the user to create a customized equipment list.
• The user can easily move or copy systems, zones, and areas within a project.
• The user can specify door types along with the door widths, heights, u-values, and quantities.
• Up to 7 different types of walls and windows can be specified for each area.
• Skylight inputs are now separate from the window inputs.
• The user can now specify electrical latent loads in addition to sensible loads.
• The appliance database has been expanded to include more specialized office and home equipment.
• The u-value construction material database has been expanded to include more common materials.
• On-slab floor inputs have been added to better model floor heating loss during the winter.
• Input checks have been incorporated so the user can confirm that inputs are correct.
• Quick calculation functionality has been added to each area so that the user can instantly see the cooling and heating load contributions for the area.
• All input and output data can be exported to Microsoft Word and Excel templates.
• Reports can be exported to XML files so that data can be easily be shared with others.
• The what-if scenario functionality includes more inputs to perform the what-if analysis.
• Now compatible with Autodesk Building Systems using gbXML

• Input up to 500 detailed area inputs and 250 detailed system inputs.
• Inputs for all directional orientations. · Inputs for roof, wall, door, and window angles.
• Inputs for internal loads including people, lighting, equipment, infiltration, floor, basement and miscellaneous loads.
• Inputs for window shading and partitions.
• Inputs for ventilation, infiltration, fan heat gains, and safety factors.