In that climate I would really consider the passive house approach. Without a need for AC you can get really really close to actually being truly passive.
I have to say I agree with you on the modulating condensing water heaters and boilers. My experience with them has not been highly positive. I think I would look to put the energy savings in the building rather than the equipment.
*edit... uggh... I didn't see where COs new law was only 110 gallons. While a step in the right direction that is highly disappointing.
Last edited by DEnd; 07-23-16 at 01:05 AM..
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