[bake]

Great suggestion -- HPH was a stab at making more sophisticated tools like that more approachable for homeowners, but for folks able and inclined to use the more powerful software out there (including energy plus and open studio), it could be really useful.

One thing we've built but not yet included in the site is a way to back into a more precise heating/cooling load for the home using past utility bills. That could be useful even for folks going down the more bottoms-up modeling route as a way to help with the 'garbage in / garbage out' problem of having to estimate insulation, window heat transfer, etc. etc.