North Dakota: 9 cities covered
North Dakota's cities mostly do not clear a positive payback against a like-for-like gas furnace replacement, which is itself the honest local answer.
- Fargo — 136,285 people, 7040 HDD
- Bismarck — 77,772 people, 7508 HDD
- Grand Forks — 59,845 people, 7753 HDD
- Minot — 47,440 people, 8037 HDD
- West Fargo — 41,027 people, 7040 HDD
- Williston — 28,821 people, 8137 HDD
- Dickinson — 25,695 people, 7806 HDD
- Mandan — 24,788 people, 7854 HDD
- Jamestown — 15,789 people, 7670 HDD