I've been able to find many cell phone apps but not many good ones for PC.
Does anyone know of any similar programs / tools online that are free?
Great stuff, thanks Ted!
You are welcome Tyler!
Here's one I forgot - video of Phil Jeffers "Auditor" software: http://bit.ly/auditorvideo
Try www.ResidentialEnergyDynamics.com for RED Calc Free tools. These free calculation tools are not aimed at homeowners, but at energy professionals. More energy and diagnostic tools are added frequently.
The list now includes: