Connecticut: 21 cities covered
Connecticut's cities mostly do not clear a positive payback against a like-for-like gas furnace replacement, which is itself the honest local answer.
- Bridgeport — 151,599 people, 4566 HDD
- Stamford — 139,134 people, 4760 HDD
- New Haven — 137,562 people, 4517 HDD
- Hartford — 122,129 people, 4842 HDD
- Waterbury — 115,908 people, 5472 HDD
- Norwalk — 93,661 people, 4566 HDD
- Danbury — 88,692 people, 4937 HDD
- New Britain — 75,871 people, 4842 HDD
- Bristol — 62,195 people, 4906 HDD
- Meriden — 60,849 people, 4906 HDD
- West Haven — 55,379 people, 4291 HDD
- Milford — 51,004 people, 4560 HDD
- Middletown — 48,616 people, 4906 HDD
- Shelton — 42,805 people, 4566 HDD
- Norwich — 39,993 people, 5520 HDD
- Torrington — 35,673 people, 4795 HDD
- Naugatuck — 32,116 people, 5472 HDD
- New London — 28,081 people, 4932 HDD
- Ansonia — 19,195 people, 5472 HDD
- Derby — 12,915 people, 4517 HDD
- Groton — 10,160 people, 4932 HDD