The goal of conducting a load calc is finding the CORRECT load on a house. How does one know if the final answer that Wrightsoft provides is correct or not? The short answer is they don't - unless the check their work thoroughly and verify that pertinent project project information has been correctly specified in the model.
Wrightsoft software doesn't know if a user has calculated ceiling, wall, or floor area incorrectly. The program doesn't provide an error message if a user entered 24,000 btuh (2 tons!) for appliance loads as opposed to a more realistic 2,400 btu (2 tenths of a ton!). The best way to figure out if a load is correct is to DOUBLE CHECK all areas, R-values, U-values, HTM's, and final loads.
Below is the checkout process that I use on every load.... Feel free to add to it!
▪Is exact location of home known? Does it match specified climate data?
I found the drawing feature to be very frustrating to master so I mostly use the worksheet feature. I'm assuming the glitche is in the drawing board feature, is that correct?
Dale, yes, there are several drawing board related glitches that are basically all related to one setting: grid point snap spacing.
Basically, the smaller the snap setting number is, the more likely glitches are. Problems can range from windows disappearing and rooms resizing themselves to the load changing drastically with just the click of a mouse (while not changing anything in the drawing).
Folks get tempted to set the snap points to increments of 3 inches or lower especially when drawing homes with walls on 45 degree angles. However, If you leave the grid set to 12" increments and set the snap to 6" you will still be able to draw a very accurate footprint and should be glitch free!