A couple of updates.
I got a hold of my energy rater and got a couple of things clarified and worked out:
1.2 Replace primary heating system with 84% AFUE.
He ran the numbers again and going with a newer model of my Rinnai heater will get me 8.8pts (instead of the 9.1). I'm really happy about this because the points are still high, the swap will be easy and the new model has time settings in the thermostat so we can reduce the temperature at night.
2.4 Add R-40 ridged foam on foundation walls.
2.5 Add R-40 ridged foam around inside perimeter of foundation footing (under vapor barrier)
He was unaware of the R-40 requirement in the report. He said the program just spits out the number. He said I only need to go R-20, so that's a huge savings in insulation costs.
When I divide the rebate premium into the number of points I get $500 per point. With this the insulation still doesn't break even, but that's not taking into account the long term energy savings, but I'd like to make it as inexpensive as I can from the beginning. Now I'm shopping around for the best price on foam board.
Erich
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