Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Yes, you have no chance to directly modify the initial condition. E+ starts out with all the surfaces at 23C and runs warmup days until temperature results for the first day converge. You can turn on report during warmup if you want to see how this progresses.
What you could do as a workaround is start the simulation many days in advance of the "beginning" you want to study and setup schedules and custom weather to do a long soak of the building under the conditions you think would produce initial condition you would like to have. I have heard other tools that don't have warmup days are used in this way.
