We got our Energy Smart home assessment report last night. Interesting stuff, but lets look closer at it.
They made various recommendations:
Insulate attic flat, cost $882, ann. savings $7, payback 127.8 years.
Insulate attic kneewall, cost $840, ann $75, payback 11.1 years.
Replace lighting (CFL), cost $42, ann savings $42, payback 1 year
Replace windows, cost ?, ann savings $558, payback N/A
Seal attic doors, cost $150, savings $0, payback N/A
Seal front door, cost $85, savings $0, payback N/A
Attic flat access, cost $175, savings $0, payback N/A
Total cost $2174, Annual savings $683, Payback 3.19 years.
Hmmmm…. Payback of 3.19 years to have all this work done! But I had already switched almost all of my home lighting to CFLs before the auditor came. So scratch that. I also remember the auditor testing may front door during the blower door test, and saying it was well sealed. There were no leaks there. Scratch that. They had left the cost of the widows off because they didn’t know what options I might want. But they didn’t leave the savings of the windows off. So if I exclude the savings from the windows, and the stuff for the lighting and the front door, the cost is now $2047, with a savings of $82 a year, and a payback of 25 years. The consultant guy threw out a number for the 21 windows of $19000 I think. So throwing that number into the equation, the payback turns into 30 years.
I called the consultant guy and he confirmed my reading of the numbers. I may still have some of the work done, or do it myself. I am not replacing all of the windows in my house. I will replace the weather strippping on on the Andersen windows. I am still looking at replacing the sliding glass doors. I am not sure if I will go with the Schuco doors, or the Anderson French Wood Gliders. I will go into more detail on this in another post. They didn’t include home sealing since my house is a post and beam design, it would have been hard for them to do. Hmmm.. I seem to be doing fine with it. I have been busy sealing my house slowly, a little here, a little there.