| Type | Basement Wall | Crawl Space Wall | Slab | Frame Wall | Ceiling | Windows | Infiltration | Gas Heating Efficiency | Electric Heating Efficiency | Electric Cooling Efficiency |
|---|---|---|---|---|---|---|---|---|---|---|
| Single Family | R-10 | N/A | N/A | R-19 | R-38 | R-2.8 | .50/.40 | 85 AFUE | 7.5 HSPF | 11 SEER |
| Multi-Family | NA | NA | R-5 | R-19 | R-45 | R-3.1 | .40/.32 | 92 AFUE | 8.5 HSPF | 10 SEER |
Total interior lighting connected load 1 W/ft^2 Controls Switching 450 ft^2/switch Motion sensor (office) 50% of office area Exterior Lighting Lighting Type load (kW): Fluorescent .088 Incandescent .224 HID 1.047 - 1.36 Schedule (except for security lights) sunset-midnight
Office Equipment Power Density .47 w/ft^2 Refrigeration Equipment Electric Load .06W/ft^2 Cooking Equipment Electric Load .035 W/ft^2 Gas .059 Btuh/ft^2
Exterior Wall Construction Ceiling height 9 ft. U-value (R-value) .08 Window to wall ratio 17% (on each wall) Window U-value (including frame) .41 Shading Coefficient .46 Roof Construction Type bar jst/mtl deck Slope "flat" U-value (R-value) .05 Absorption .65 Overhang .5 Floor Construction Type grade U-value (R-value) .125(8) to 24"
System Sizing CFM/ft^2 1.2 CFM/ ft^2 fresh air .14 Fan W/cfm .27 System setpoints Heating 72deg.F Heating (unoccupied hours) 55deg.F Cooling 75deg.F Cooling (unoccupied hours) Off System type roof top, all air, 1 unit/tenant up to 5 tenants Heating System Gas furnace efficiency (<225,000 Btu/H AFUE) .81 Electric heat pump (HSPF) <=65,000 Btu/h (split system/single package) 8.0/7.8 >65,000, <=135,000 Btuh (steady state COP) 3.4 Cooling System Efficiency <=65,0000 Btuh (SEER-seasonal value) 12 (10.8 EER) Ventilation & Infiltration cfm/person 20 Ft.^2/person 143 Infiltration, cfm/ ft.^2 of gross wall .038
Type Electric resistance (EF) .88 Gas (EF) .54 Load gas/person/day 1 Pipe length 25 ft. Pipe insulation none Circulating pump no