What makes a good residential HVAC system?
Older houses leaked and, to a degree, are uncomfortable and energy inefficient. We may think a cold room is standard in houses or a wood boiler needs to heat our house to 26C in the winter. We get use to opening windows in winter to…
$/Million Btu’s
Thanks to John Manning of Phoenix Energy Supply for sending me this graph. The chart clearly shows geoexchange coming out ahead (in New York dollars) over the long term. Energy Prices per Million BTUs-1 On a personal note, I’m been very hesitant to…