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Normal Yearly Operating Data
(Cooling Hours based on 75°F indoor temperature with air conditioner sized to meet the design conditions.)
| ASHRAE |
|
| Heating | Estimated |
| Degree | Cooling |
Location | Days | Hours |
ALABAMA |
|
|
Birmingham | 2,551 | 1,390 |
Huntsville | ,070 | 1,340 |
Mobile | 1,560 | 1,640 |
Montgomery | 2,291 | 1,580 |
ARIZONA |
|
|
Flagstaff | 7,152 | 310 |
Phoenix | 1,765 | 2,280 |
Tucson | 1,800 | 1,920 |
Yuma | 974 | 2,520 |
ARKANSAS |
|
|
Fort Smith | ,292 | 1,410 |
Little Rock | ,219 | 1,330 |
CALIFORNIA |
|
|
Bakersfield | 2,122 | 1,530 |
Fresno | 2,611 | 1,210 |
Los Angeles | 2,061 | 310 |
Sacramento | 2,502 | 1,030 |
San Diego | 1,458 | 390 |
San Francisco | 3,015 | 110 |
COLORADO |
|
|
Colorado Springs | 6,423 | 520 |
Denver | 6,283 | 550 |
Grand Junction | 5,641 | 910 |
CONNECTICUT |
|
|
Hartford | 6,235 | 480 |
DISTRICT of COLUMBIA |
|
|
Washington | 4,224 | 1,010 |
DELAWARE |
|
|
Wilmington | 4,930 | 770 |
FLORIDA |
|
|
Jacksonville | 1,239 | 1,690 |
Miami | 214 | 2,850 |
Orlando | 766 | 1,930 |
Tallahassee | 1,485 | 1,500 |
Tampa | 683 | 2,350 |
GEORGIA |
|
|
Atlanta | 2,961 | 1,130 |
Augusta | 2,397 | 1,400 |
Macon | 2,136 | 1,440 |
Savannah | 1,819 | 1,510 |
IDAHO |
|
|
Boise | 5,809 | 670 |
Lewiston | 5,542 | 600 |
Pocatello | 7,033 | 570 |
ILLINOIS |
|
|
Chicago | 6,155 | 780 |
Moline | 6,408 | 760 |
Springfield | 5,429 | 890 |
INDIANA |
|
|
Evansville | 4,435 | 1,090 |
Fort Wayne | 6,205 | 710 |
Indianapolis | 5,699 | 820 |
South Bend | 6,439 | 600 |
IOWA |
|
|
Burlington | 6,114 | 730 |
Des Moines | 6,588 | 710 |
Sioux City | 6,951 | 770 |
KANSAS |
|
|
Dodge City | 4,986 | 1,020 |
Goodland | 6,141 | 800 |
Topeka | 5,182 | 880 |
Wichita | 4,620 | 1,070 |
|
|
|
| ASHRAE |
|
| Heating | Estimated |
| Degree | Cooling |
Location | Days | Hours |
KENTUCKY |
|
|
Lexington | 4,683 | 830 |
Louisville | 4,660 | 1,130 |
LOUISIANA |
|
|
Alexandria | 1,921 | 1,670 |
Baton Rouge | 1,560 | 1,860 |
New Orleans | 1,385 | 1,790 |
Shreveport | 2,184 | 1,470 |
MAINE |
|
|
Portland | 7,511 | 290 |
MARYLAND |
|
|
Baltimore | 4,654 | 850 |
MASSACHUSETTS |
|
|
Boston | 5,634 | 500 |
MICHIGAN |
|
|
Detroit | 6,293 | 590 |
Flint | 7,377 | 440 |
Grand Rapids | 6,894 | 530 |
MINNESOTA |
|
|
Duluth | 10,000 | 200 |
Minneapolis | 8,382 | 550 |
MISSISSIPPI |
|
|
Jackson | 2,239 | 1,560 |
MISSOURI |
|
|
Columbia | 5,046 | 960 |
Kansas City | 4,711 | 1,210 |
Springfield | 4,900 | 970 |
St. Louis | 4,900 | 1,080 |
MONTANA |
|
|
Billings | 7,049 | 520 |
Glasgow | 8,996 | 410 |
Great Falls | 7,750 | 420 |
Missoula | 8,125 | 350 |
NEBRASKA |
|
|
Grand Island | 6,530 | 770 |
Omaha | 6,612 | 750 |
NEVADA |
|
|
Ely | 7,733 | 500 |
Las Vegas | 2,709 | 1,980 |
Reno | 6,332 | 520 |
NEW JERSEY |
|
|
Newark | 4,589 | 710 |
NEW MEXICO |
|
|
Albuquerque | 4,348 | 1,040 |
Clayton | 5,158 | 720 |
Silver City | 3,705 | 1,260 |
NEW YORK |
|
|
Albany | 6,875 | 480 |
Binghamton | 7,286 | 310 |
Buffalo | 7,062 | 450 |
New York | 4,811 | 790 |
Rochester | 6,748 | 470 |
Syracuse | 6,756 | 500 |
NORTH CAROLINA |
|
|
Asheville | 4,042 | 690 |
Charlotte | 3,191 | 1,230 |
Raleigh | 3,393 | 1,070 |
3,595 | 960 | |
NORTH DAKOTA |
|
|
Bismarck | 8,851 | 510 |
Fargo | 9,226 | 490 |
Williston | 9,243 | 580 |
|
|
|
| ASHRAE |
|
| Heating | Estimated |
| Degree | Cooling |
Location | Days | Hours |
OHIO |
|
|
Cincinnati | 5,265 | 840 |
Cleveland | 6,351 | 610 |
Columbus | 5,660 | 810 |
Dayton | 5,622 | 740 |
Toledo | 6,494 | 590 |
OKLAHOMA |
|
|
Oklahoma City | 3,725 | 1,200 |
Tulsa | 3,860 | 1,410 |
OREGON |
|
|
Medford | 5,008 | 620 |
Pendleton | 5,127 | 590 |
Portland | 4,635 | 270 |
PENNSYLVANIA |
|
|
Harrisburg | 5,251 | 730 |
Philadelphia | 5,144 | 810 |
Pittsburgh | 5,987 | 590 |
Scranton | 6,254 | 440 |
Williamsport | 5,934 | 600 |
RHODE ISLAND |
|
|
Providence | 5,954 | 470 |
SOUTH CAROLINA |
|
|
Charleston | 2,033 | 1,390 |
Columbia | 2,484 | 1,440 |
Greenville | 2,980 | 1,120 |
SOUTH DAKOTA |
|
|
Rapid City | 7,345 | 580 |
Sioux Falls | 7,839 | 610 |
TENNESSEE |
|
|
Chattanooga | 3,254 | 1,180 |
Knoxville | 3,494 | 1,070 |
Memphis | 3,232 | 1,320 |
Nashville | 3,578 | 1,220 |
TEXAS |
|
|
Corpus Christi | 914 | 2,380 |
Dallas | 2,363 | 1,900 |
El Paso | 2,700 | 1,580 |
Houston | 1,396 | 1,850 |
Lubbock | 3,578 | 1,310 |
San Antonio | 1,546 | 1,920 |
UTAH |
|
|
Milford | 6,497 | 910 |
Salt Lake City | 6,052 | 830 |
VERMONT |
|
|
Burlington | 8,269 | 130 |
VIRGINIA |
|
|
Norfolk | 3,421 | 1,010 |
Richmond | 3,865 | 1,020 |
Roanoke | 4,150 | 870 |
WASHINGTON |
|
|
Seattle | 5,145 | 180 |
Spokane | 6,655 | 430 |
Yakima | 5,941 | 530 |
WEST VIRGINIA |
|
|
Charleston | 4,476 | 860 |
Huntington | 4,446 | 820 |
WISCONSIN |
|
|
Madison | 7,863 | 530 |
Milwaukee | 7,635 | 450 |
WYOMING |
|
|
Casper | 7,410 | 600 |
Cheyenne | 7,381 | 420 |
Sheridan | 7,680 | 530 |
|
|
|
Formula for Calculating Operating Costs Using Above Data:
Heating* — Heat Loss KW x Heating Degree Days x “C” x Cost Per KWH = Operating Cost
Outdoor Design Temperature Difference
*The above formula is for electric resistance heating only. Power consumption using the Zoneline Heat Pumps should be adjusted by Seasonal Performance Factor (SPF).
The local power supplier should be consulted for recommended value of “C.” This factor will vary between 17 and 24.
Cooling — | Calculated Heat Gain (BTUH) | x = | Unit Cooling Watts | x Cooling Hours x Cost per KWH = Operating Cost |
Installed unit capacity (BTUH) | 1000 Watts/KW |
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