Table 2120: CDD by City Conditioned Space Unconditioned Space City CDD (Base 65°F) CDD (Base 75°F) Allentown 787 317 Erie 620 173 Harrisburg 955 337 Philadelphia 1235 292 Pittsburgh 726 249 Scranton 611 222 Williamsport 709 256 Table 2121: HDD by City Conditioned Space Unconditioned Space City HDD (Base 65°F) HDD (Base 50°F) Allentown 5830 2439 Erie 6243 2883 Harrisburg 5201 2250 Philadelphia 4759 2406 Pittsburgh 5829 2552 Scranton 6234 2806 Williamsport 6063 2684 Table 2122: Efficiency of Heating System heat Effective COP Estimate System Type HSPF Estimate (HSPF/3.412)*0.85 Heat Pump 6.9 1.7 Resistance N/A 1
Table 2120: CDD by City City Conditioned Space CDD (Base 65°F) Unconditioned Space CDD (Base 75°F) Allentown 787 317 Erie 620 173 Harrisburg 955 337 Philadelphia 1235 292 Pittsburgh 726 249 Scranton 611 222 Williamsport 709 256 Table 2121: HDD by City City Conditioned Space HDD (Base 65°F) Unconditioned Space HDD (Base 50°F) Allentown 5830 2439 Erie 6243 2883 Harrisburg 5201 2250 Philadelphia 4759 2406 Pittsburgh 5829 2552 Scranton 6234 2806 Williamsport 6063 2684 Table 2122: Efficiency of Heating System System Type HSPF Estimate heat Effective COP Estimate (HSPF/3.412)*0.85 Heat Pump 6.9 1.7 Resistance N/A 1