Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
I expect performance of the HVAC system will vary over time based on the current weather, as well as the load on the system. There probably are some rough performance numbers you can put in, but it is probably worth learning to add some basic HVAC systems. Whatever tool you are using, there are typically some options available.
Another thing that Ideal Air Loads doesn't account for, at least as it is often used, is outdoor air which will greatly impact energy use beyond what assumptions you make for the system performance.
