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C.1 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
Climate dataDaniel RapopoRt: 48-315 envionment i
Wind Roseallentown, pa
sUn PATH diAGRAMallentown, pa
50’
dec
iduo
us
dec
iduo
us
dec
iduo
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Coni
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Coni
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Coni
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s.1 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
site plan with vegetation Daniel RapopoRt: 48-315 envionment i
s.3
s.2
lw.1s RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
summeR shadowsDaniel RapopoRt: 48-315 envionment i
9am12pm
3pm
dining Room
living Room
Kitchen
Foyer
Rest-room
office
Family Room
garage
laundry Room
AnAlysisduring the winter, the liv-ing room, Foyer and ga-rage receive sun at 9 am, while the dining Room, Kitchen and Family Room are darkest. this is al-most optimal; with the exception of the kitchen, all rooms important to morning routines are lit. at noon, almost no rooms are lit well with the excep-tion of the living room. however, no-one is home at noon, so this is not a problem. at 3pm the din-ing Room, Kitchen, Family and laundry rooms are all well-lit while the living Room, office, and garage are not. this is optimal because family members return home from school or work after 3pm and need light in the dining Room, Kitchen , Family and laundry Rooms.
lw.1w RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
winteR shadowsDaniel RapopoRt: 48-315 envionment i
9am12pm
3pmAnAlysisoverall, the winter analy-sis is very coals to the summer analysis. all the same rooms receive sun at the same times of day, but the sun is lower in the sky and thus less intense. summer light is much stronger and therefore warmer. nevertheless, all rooms generally receive sun when it is beneficial (except at noon, when almost no sun is perceiv-able from indoors).
50’
d.1 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
dRainage planDaniel RapopoRt: 48-315 envionment i
AnAlysisBecause the site is orient-ed with a south-east dom-inated slope, all water moves around the house in the manner illustrated here. the topography and current swale already works well to divert water away from the house.
p.1 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
peRspeCtive: south and east FaCadesDaniel RapopoRt: 48-315 envionment i
s.1 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
enviRonmental pRogRamming Daniel RapopoRt: 48-315 envionment i
Environmental Programming Circle Your Organizational Priority; identify Liabilities Number Your Climate Priorities
Check All Preferred Orientations
Space Title
SquareFoot
Range
Living, Circ,
Support?
Time in
Use
#People MET 1-5
CLO 0-5
Internal Loads L/M/H
Env. Interests:
Views/Access
Htg Clg Vent
SW
S
SE
E
NE
N
NW
W
Space Priority 1, 2, 3
Living Room
Dining Room
Family Room
Kitchen
Bedroom 2
Bedroom 3
Master Bedroom
1
2 3 4
2
3
4
1
Bedroom 1
279.5
225.75
352.5
411
163.85
203
180.75
311.23
173.25
special occasions
onlyLiving
Support
Living
Living
Living
Living
Living
Living
Support
special occasions
only
4 hrs
4 hrs
12 hrs
12 hrs
12 hrs
9 hrs
4 hrs
1
3
3
4-5
1-2
1
1
2
1
0.8
0.8
0.8
0.8
0.6
0.6
0.6
0.6
0.8
9’
9’
10’
9’
9’
9’
9’
9’
9’
Fireplace
Stove Oven
(S) Hilled View
(S) Hilled View
(E) Hilled ViewEastern Sun
Farm ViewWestern Sun
Farm ViewWestern Sun
(E) Hilled ViewEastern Sun
Hilled View
2
2
1
2
1
1
1
1
2
s.2
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AnAlysisi would not recommend a redesign of the house. during the sum-mer and winter, we rarely use the a/C and heating respectively. the heat from the kitchen dissipates through the rest of the house due to its central location, and all rooms receive sun when needed, for the most part, year round. the wind comes strongly from the west year-round. thus, the garage and attic crawl spaces are located on the northeast and effectively block most wind. what is not blocked is broken up by strategically placed trees. although the shadows of the neighboring houses and the line of trees that separate the house from the farmland behind it come close, they never actually reach the house. only in winter after 3pm does the shadow of the large line of trees come into contact with the house itself. on average, the house is very comfortable and solar orientation, heating, and views are not a problem. the skylights in the Kitchen and upstairs master bath-room (at a 25 degree angle from horizontal, facing the southwest) capture sun nicely during the winter and avoid it during the summer. the house rests atop a hill and thus has an excellent view of the en-tire lehigh valley on the northeast, southwest and southwest sides. all rooms face these orientations already; the master bedroom faces southwest, Bedroom 1 faces southwest, and bedroom 2 is the excep-tion. while Bedroom 2 does not have a view of the valley, it has a beautiful view of the farmland behind the property. although the house is a cookie-cutter, the contractors and architects who designed it seemingly knew what they were doing (or perhaps got lucky) from an orientation standpoint, at least.
insiDe aiR Film
5/8” Gypsum BoaRD
FiBeRGlass Batt insulation
1/2” osB sheathinG
tyvek house WRap
holloW aluminum siDinG
outsiDe aiR Film
insiDe aiR Film
5/8” Gypsum BoaRD
FiBeRGlass Batt insulation
5/8” Gypsum BoaRD
outsiDe aiR Film
insiDe aiR Film
5/8” Gypsum BoaRD
FiBeRGlass Batt insulation
1/2” osB sheathinG
tyvek house WRap
1” aiR pocket
8”x 4” Face BRick
outsiDe aiR Film
w-1: interior to exterior wall with aluminum siding
w-2: interior to garage wall w-3: interior to exterior wall with BRiCK FaCing
insiDe aiR Film
5/8” Gypsum BoaRD
FiBeRGlass Batt insulation
1/2” osB sheathinG
outsiDe aiR Film
12
2x6 stuD
34567
at cavity
0.680.56
13.00
0.630.610.17
at Joist
0.680.56
7.500.630.610.17
holloW aluminum siDinG
Rt
15.65 10.15
AverAge r vAlue 14.83AverAge u vAlue 0.067
insiDe aiR Film
5/8” Gypsum BoaRD
FiBeRGlass Batt insulation
5/8” Gypsum BoaRD
12
2x6 stuD
3456
at cavity
0.680.56
13.00
0.680.61
at Joist
0.680.56
7.500.680.61outsiDe aiR Film
Rt
15.53 10.03
AverAge r vAlue 14.71AverAge u vAlue 0.068
insiDe aiR Film
5/8” Gypsum BoaRD
FiBeRGlass Batt insulation
1/2” osB sheathinG
outsiDe aiR Film
12
2x6 stuD
3456
8
at cavity
0.680.56
13.00
0.631.00
0.17
at Joist
12
7.500.631.00
0.17
1” aiR pocket
Rt
16.48 10.98
AverAge r vAlue 15.93AverAge u vAlue 0.063
6 0.44 0.448”x 4” Face BRick
eC.1 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
wall seCtion - no. 1, 2, 3scale: 2 “ = 1’
Daniel RapopoRt: 48-315 envionment i
insiDe aiR Film
5/8” Gypsum BoaRD
FiBeRGlass Batt insulation
1/2” osB sheathinG
tyvek house WRap
holloW aluminum siDinG
outsiDe aiR Film
insiDe aiR Film
5/8” Gypsum BoaRD
FiBeRGlass Batt insulation
8” thick concRete FounDationsoil
w-4: heated Basement to exterior wall with aluminum siding
w-5: heated Basement to soil wall
insiDe aiR Film
5/8” Gypsum BoaRD
FiBeRGlass Batt insulation
1/2” osB sheathinG
outsiDe aiR Film
12
2x6 stuD
34
678
at cavity
0.680.56
13.00
0.630.610.17
at Joist
0.680.56
7.50
0.630.610.17
holloW aluminum siDinG
Rt
15.73 10.23
AverAge r vAlue 14.91AverAge u vAlue 0.067
insiDe aiR Film
5/8” Gypsum BoaRD
FiBeRGlass Batt insulation
8” thick concRete
12
2x6 stuD
345
at cavity
0.680.56
13.00
0.08
at Joist
0.680.56
7.500.08
Rt
14.32 8.82
AverAge r vAlue 13.50AverAge u vAlue 0.074
eC.2 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
wall seCtion - no. 4, 5scale: 2 “ = 1’
Daniel RapopoRt: 48-315 envionment i
8” thick concRete FounDation
8” thick concRete5 0.08 0.08
5/8” Gypsum BoaRD
6 1/2” FiBeRGlass Batt insulation
1/2” osB sheathinG
2”x 8” ceilinG Joist
C-1: Ceiling to unheated attic
insiDe aiR Film
2”x8” ceilinG Joist
FiBeRGlass Batt insulation
insiDe aiR Film
12
1/2’” osB sheathinG
34
6
at cavity
0.17
19.000.63
0.68
at Joist
0.179.38
0.63
0.68
Rt 21.00 11.4
AverAge r vAlue 19.6AverAge u vAlue 0.05
eC.3 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
Rood seCtionscale: 2 “ = 1’
Daniel RapopoRt: 48-315 envionment i
5/8” Gypsum BoaRD5 0.56 0.56
insiDe aiR Film
outsiDe aiR Film
C-1: Basement Floor to to soil
eC.4 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
FlooR seCtion - no. 1scale: 2 “ = 1’
Daniel RapopoRt: 48-315 envionment i
caRpet
extRuDeD polyeuRothane
pouReD concRete
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TABLE ASIMPLIFIED CALCULATION OF BUILDING HEAT LOSS COEFFICIENTS
PEAK AND ANNUAL LOAD
detail U# -value total area Heat loss Coeff icient
Btu/hrft2°F ft2 UA=Btu/hr°F
WALLS W-1 0.06 1,7 636. 11 09.6
W- 0.2 06 78 43.7 50.6
W- 0.3 06 73 14.0 45.0
W- 0.4 067 1,595.1 106.9
WINDOWS Andersen – Narrow line Double-hung
0.30 353.6 106.1
DOORS Therma-Tru – Steel CladExterior Doors
0.16 18 295 .6
ROOFS C-1 0. 21 063.9 206.4
BELOW GRADE FLOORS modif ied U ft2
F- 0.1 020 1944. 33 8.9
BELOW GRADE WALL toS tal F perimeter ft.
W- 0.5 03 22 05.5 6.6
INFILTRATION (heated volume of the building x number of air changes x the heat capacity of air .018 Btu ft3°F#A.C. x .018 x volume cu.ft. = heat loss
coefficient1.00 x .018 x 56,123.5 = 1 , 010.2
TOTAL HEAT LOSS COEFFICIENT (total UA) Btu/hr° 1F 00% 1,709.9
HEAT LOSS SOUR UC AE HEAT LOSS Btu/hr/°F %
Transmission Losses:
Walls .................................. 318.7 18.7
Window s .................................. 106. 61 .2
Doors .................................. 29. 1.6 7
Ceilings .................................. 206. 14 2.1
Floors .................................. 38 2. .9 3
Infiltration Losses .................................. 1,010.2 59.1
PEAK HEAT LOSS (BTUh) = total UA x T (design indoor°F - design outdoor°F)
111,143.5 BTUh = 1,709.9 x 65
ANNUAL HEAT LOSS (MMBTU) = total UA x 24hrs x annual degree days
236.5 MMBTU = 1,709.9 x 24hrs x 5763
Building Energy Performance Annual Loss / Sq.ft heated = BEPS BTU/sqft x .00315 US/metric
236,499,688.8 / 5,657.4 = 41,803.6 BTU/sqft = 131.7 kWh/m2
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Dani
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Walls, 16.7%
Windows, 5.4%
Doors, 1.5%
Ceilings, 10.5%
Floors, 2.0%
Infiltration Losses, 64.0%
Walls Windows Doors Ceilings Floors Infiltration Losses
18.7% 6.7% 1.2% 12.1% 2.3% 59.9%
a.1 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
inteRioR to eXteRioR Conditions deFinedscale: 1/32 “ = 1’
Daniel RapopoRt: 48-315 envionment i
Basement
KitChen Bath oFFiCe
masteR BedRoommasteR Bath
W1
W5
W3
F1
c1attiC 1
a.2 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
inteRioR to eXteRioR Conditions deFinedscale: 1/32 “ = 1’
Daniel RapopoRt: 48-315 envionment i
Basement
gaRage
masteR BedRoomwalK-in Closet
W1
W5Basement Bath
W2
BathlaundRy FoyeR
stoRage/BoileR
living Room
mezzanine Bath
attiC 1
attiC 2
W4
c1
W4
c1
tC.1 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
eneRgy CalCulations: heatingDaniel RapopoRt: 48-315 envionment i
Heating: Building Load Coefficient1. ua total for house 1,709.5 Btu/h oF x 24 = building load coefficient 41,937.6 Btu/day oF (could vary per month if storm windows, night insulation, or zoning is used)2. dd base 65oF. 3. heating fuel type: eleCtRiC (FuRnaCe)3B. heating system efficiency 300%4. $ 13.21mmbtu (convert from $0.106 kwh if needed) total mmbtu from the bills divided by the $ charged), note total costs in 4. may be less than bills if gas is used for dhw, cooking and drying (add all of those columns = bill).
1.BLC = 24 UA/
DD
2. mo, HDD(base 65o)
3. Htg. Load BTU x 106
(1. X 2.)
divide by sys. effic.
(eg. .85 = 85%)
3B. Htg. System Demand
(BTU x 106)
4. cost/
mmbtu
Total Heating Cost
Jan 41,801.1 x 1153 = 48.2 3 16.1 x 13.21 = 212.23
Feb 41,801.1 x 1127 = 47.1 3 15.7 x 13.21 = 207.44
Mar 41,801.1 x 1041 = 43.5 3 14.5 x 13.21 = 191.61
Apr 41,801.1 x 593 = 24.8 3 8.3 x 13.21 = 109.15
May 41,801.1 x 359 = 15.0 3 5.0 x 13.21 = 66.08
June 41,801.1 x 139 = 5.8 3 1.9 x 13.21 = 25.58
July 41,801.1 x 21 = 0.9 3 0.3 x 13.21 = 3.87
Aug 41,801.1 x 0 = 0.0 3 0.0 x 13.21 = 0.00
Sept 41,801.1 x 9 = 0.4 3 0.1 x 13.21 = 1.66
Oct 41,801.1 x 212 = 8.9 3 3.0 x 13.21 = 39.02
Nov 41,801.1 x 447 = 18.7 3 6.2 x 13.21 = 82.28
Dec 41,801.1 x 662 = 27.7 3 9.2 x 13.21 = 121.85
5,763
Total HDD
240.9
Heating Load(mmbtu)
80.3
System Demand(mmbtu)
$1,060.76
Heating Cost
What is the Btu/ SqFt-HDD heating value? 11.12 mmbtu/sqft-hdd
What is the Btu/ SqFt? 64,038.3 mmbtu/sqft
medium usage existing homes: 11 Btu/ SqFt-HDD
tC.2 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
eneRgy CalCulations: domestiC hot wateR useDaniel RapopoRt: 48-315 envionment i
General Informationgallons of hot water 2.870/month dhw Fuel type: ELECTRIC
5. dhw load
Kwhx $/Kwh
Total Domestic Hot Water Cost
Jan 2,358 x 0.2 = 471.6 kwh x .106 49.99
Feb 2,358 x 0.2 = 471.6 kwh x .106 49.99
mar 2,358 x 0.2 = 471.6 kwh x .106 49.99
apr 2,358 x 0.2 = 471.6 kwh x .106 49.99
may 2,358 x 0.2 = 471.6 kwh x .106 49.99
June 2,358 x 0.2 = 471.6 kwh x .106 49.99
July 2,358 x 0.2 = 471.6 kwh x .106 49.99
aug 2,358 x 0.2 = 471.6 kwh x .106 49.99
sept 2,358 x 0.2 = 471.6 kwh x .106 49.99
oct 2,358 x 0.2 = 471.6 kwh x .106 49.99
nov 2,358 x 0.2 = 471.6 kwh x .106 49.99
dec 2,358 x 0.2 = 471.6 kwh x .106 49.99
total5,659.2 Kwh
dhw load
$599.88dhw cost
if Electric:5. kwh/mo= gallons x .2 kwh/gallons 6. cost/kwh = $0.106
activity gallons per use
times per month
total
Clothes washing 32 x 15 = 480
showering 20 x 80 = 1600
Bathing 20 x 1 = 20
automatic dish-washing
12 x 15 = 180
preparing Food 5 x 10 = 50
hand dishwashing 4 x 7 = 28
2,358
tC.3 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
eneRgy CalCulations: CoolingDaniel RapopoRt: 48-315 envionment i
General Information
equipment seeR rating: 12 Btu/whunit Capacity 35,000 Btuh
9. Electricity cost $ 0.106/kwh
7.monthly Ch or
Cdd
8.Cooling system
demand factor
(kwh/Cdd)
monthly Cooling system demand (kwh)
9.electricity cost
per kwh
Total Cooling Cost per month
Jan 0 x 2.92 = 0 0.106 = 0.00
Feb 0 x 2.92 = 0 0.106 = 0.00
mar 0 x 2.92 = 0 0.106 = 0.00
apr 3 x 2.92 = 8.76 0.106 = 0.93
may 32 x 2.92 = 93.44 0.106 = 9.90
June 70 x 2.92 = 204.4 0.106 = 21.67
July 235 x 2.92 = 686.2 0.106 = 72.74
aug 250 x 2.92 = 730 0.106 = 77.38
sept 226 x 2.92 = 659.92 0.106 = 69.95
oct 67 x 2.92 = 195.64 0.106 = 20.74
nov 0 x 2.92 = 0 0.106 = 0.00
dec 0 x 2.92 = 0 0.106 = 0.00
2578.4
total Cooling load
$273.31
total Cooling Cost
7. Monthly CDD or cooling hours/month (variable by month)
8. Monthly cooling system demand in kwh/CDD 2.92 = unit capacity in BTU/hr divided by (SEER in BTU/wh x 1000 wh/kwh)
tC.4 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
eneRgy CalCulations: lightingDaniel RapopoRt: 48-315 envionment i
*(with dimmers reduce the lamp wattage)
Lighting energy use
10. (total wh/mo)/1000 = 213.8 total kwh/mo (Oct - May) = 149.3 total kwh/mo (June - Sept.)
11. Electricity cost $ 0.106/kwh
10. monthly lighting
load Kwh
11. electricity
cost $/kwh
Monthly Lighting Cost
Jan 213.8 x 0.106 = $22.66
Feb 213.8 x 0.106 = $22.66
mar 213.8 x 0.106 = $22.66
apr 213.8 x 0.106 = $22.66
may 213.8 x 0.106 = $22.66
June 149.3 x 0.106 = $15.82
July 149.3 x 0.106 = $15.82
aug 149.3 x 0.106 = $15.82
sept 149.3 x 0.106 = $15.82
oct 213.8 x 0.106 = $22.66
nov 213.8 x 0.106 = $22.66
dec 213.8 x 0.106 = $22.66
2,307.6 KWh
lighting load
$244.56
total lighting Cost
Quantity in the house
average lamp wattage (w)
average hours on per month
(h/mo)
total (wh/mo)
incandescent lights 20 x 68 x 93 = 126,480
Compact Fluorescent (CFl)
40 x 23 x 93 = 85,560
Fluorescent lights 0 x 0 x 0 = 0
halogen lights 4 x 90 x 5 = 1,800
other 0 x 0 x 0 = 0
= 213,840
*(with dimmers reduce the lamp wattage)
Quantity in the house
average lamp wattage (w)
average hours on per month
(h/mo)
total (wh/mo)
incandescent lights 20 x 68 x 65 = 88,400
Compact Fluorescent (CFl)
40 x 23 x 65 = 59,800
Fluorescent lights 0 x 0 x 0 = 0
halogen lights 4 x 90 x 3 = 1,080
other 0 x 0 x 0 = 0
= 149,280
october - may
June - september
11. Electricity cost $ 0.106/kwh
tC.5 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
eneRgy CalCulations: applianCesDaniel RapopoRt: 48-315 envionment i
12.monthly appli-
ance load (Kwh)
13electricity
cost $/kwh
Monthly Appiance
Cost
Jan 783.41 x 0.106 = $83.04
Feb 783.41 x 0.106 = $83.04
mar 783.41 x 0.106 = $83.04
apr 783.41 x 0.106 = $83.04
may 783.41 x 0.106 = $83.04
June 783.41 x 0.106 = $83.04
July 783.41 x 0.106 = $83.04
aug 783.41 x 0.106 = $83.04
sept 783.41 x 0.106 = $83.04
oct 783.41 x 0.106 = $83.04
nov 783.41 x 0.106 = $83.04
dec 783.41 x 0.106 = $83.04
9,400.9 KWh
appliance load
$996.49
total appli-ance Cost
Appliance energy use
12. (total wh/mo)/1000 = 783.41 total kwh/mo13. electricity cost $ 0.106/kwh
(wh/mo) quantity in house average wattage in use
average hours on/mo total
Coffee maker 1 x 800 x 335 = 268000
dish dryer 1 x 3000 x 46.5 = 139500
washing machine 1 x 1300 x 23 = 29900
oven/stove 1 x 1400 x 15.5 = 21700
microwave oven 1 x 750 x 46.5 = 34875
iron 1 x 1000 x 6 = 6000
Coffee maker 1 x 800 x 16 = 12800
Computer 4 x 300 x 90 = 108000
monitor 3 x 300 x 90 = 81000
toasters 1 x 1100 x 15 = 16500
dvd player 3 x 50 x 12 = 1800
projector 1 x 150 x 3 = 450
tv 3 x 300 x 67 = 60300
Router 1 x 22 x 90 = 1980
printers 3 x 400 x 0.5 = 600
total = 783.41 KW
tC.6 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
eneRgy CalCulations: automoBilesDaniel RapopoRt: 48-315 envionment i
Auto energy use Car 1: 2003 honda odyssey 15,714 miles/year / 19.0 mpg = 827.07 gallons X 0.125 mmbtu/gallon = 103.38 mmbtu Car 2: 2006 subaru Forester 14,286 miles/year / 21.5 mpg = 664.45 gallons X 0.125 mmbtu/gallon = 85.06 mmbtu 1,491.52 Total gallons 188.44 Total mmbtu 14. monthly mmbtu: 188.44 mmbtu/ 12 months = 15.70 mmbtu15. average $2.397/gallon / 0.125 mmbtu/gallon = 23.50 $/mmbtu NOTE: while the Car 1 takes regular gasoline, Car 2 requires premium: thus 2.937 is an average of regular ($2.811) and premium ($3.063) prices.)
14.Monthly Cars
MMBTU
15.$/mmbtu
Jan 15.70 x 23.50 = $368.95
Feb 15.70 x 23.50 = $368.95
Mar 15.70 x 23.50 = $368.95
Apr 15.70 x 23.50 = $368.95
May 15.70 x 23.50 = $368.95
June 15.70 x 23.50 = $368.95
July 15.70 x 23.50 = $368.95
Aug 15.70 x 23.50 = $368.95
Sept 15.70 x 23.50 = $368.95
Oct 15.70 x 23.50 = $368.95
Nov 15.70 x 23.50 = $368.95
Dec 15.70 x 23.50 = $368.95
188.4 mmbtu
Car Load
$4,427.40
Total Car Cost
tC.7 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
eneRgy CalCulations: totalsDaniel RapopoRt: 48-315 envionment i
eleCtRiC $ Cooling $ heating $ domestic hot water $ lighting $ appliance $ estimated total
Jan 0 212.23 $22.66 $42.87 83.04 $360.80
Feb 0 207.44 $22.66 $42.87 83.04 $356.01
mar 0 191.61 $22.66 $42.87 83.04 $340.18
apr 0.93 109.15 $22.66 $42.87 83.04 $258.65
may 9.9 66.08 $22.66 $42.87 83.04 $224.55
June 21.67 25.58 $15.82 $42.87 83.04 $188.98
July 72.74 3.87 $15.82 $42.87 83.04 $218.34
aug 77.38 0 $15.82 $42.87 83.04 $219.11
sept 69.95 1.66 $15.82 $42.87 83.04 $213.34
oct 20.74 39.02 $22.66 $42.87 83.04 $208.33
nov 0 82.28 $22.66 $42.87 83.04 $230.85
dec 0 121.85 $22.66 $42.87 83.04 $270.42
total $273.31 $1,060.77 $244.56 $514.44 $996.48 $3,089.56
Actual Electric Bills
Jan $361.00
Feb $375.18
mar $355.48
apr $254.93
may $203.16
June $190.67
July $220.93
aug $248.18
sept $200.53
oct $166.16
nov $179.59
dec $231.76
total $2,987.55
Cooling heating lighting domestic hot water
appliance totals
annual Kwh in mmbtu equiva-
lent
8.8 240.9 7.87 19.31 2.67 279.6
annual mmbtu
percentage of total energy (%)
3.2% 86.2% 2.8% 6.9% 1.0% 100%
Annual mmbtu/ft2 64,038.3
How does your house compare to US and International energy standards?
Btu/Ft2
87,500
70,000
42,500
35,000
17,500
R.1 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
eneRgy saving measuRes: setBaCK theRmostatDaniel RapopoRt: 48-315 envionment i
CURRenT HeATinG And CooLinG CosTs PeR YeAR: $1,060 With the installation of RiteTemp 7 Day Programmable Thermostat Energy Star Compliant :setback thermostats riase the point at which air conditioning turns on and lowers the point at which the heat turns on. this saves energy in both the summer and winter and thus saves money.
Cost of thermostats: 2 @ $39.93 = $79.86
Reduce Heating Set Point to an average of 62ºF:
Current@ 65ºF = 240.9 mmBtuReduced to an average of 62ºF = 230.8 mmBtu
240.9 - 230.8 = 10.1 mmBtu * $13.1 per mmBtu = $132.11 annual savings
Increase Cooling Set Point to 69ºF:
Current @ 65ºF = 2578.4 kwh increased to an average of 68ºF = 2464.7 kwh
2578.4 kwh - 2428.9 kwh = 149.5 kwh * $0.106 per kwh = $15.85 annual savings
total savings: $147 annuallypayback in 6.5 months
temperature hours product New Set Temp.
6am-10pm 65 16 1040
10pm-6am 55 8 440
1480 0.042 62.16
sat. and sun.
8am-11pm 65 15 975
11pm-8am 55 9 495
1470 0.042 61.74
temperature hours product New Set Temp.
6am-10pm 65 16 1040
10pm-6am 75 8 600
1640 0.042 68.88
sat. and sun.
8am-11pm 65 15 975
11pm-8am 75 9 675
1650 0.042 69.3
Heating
Cooling
R.2 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
eneRgy saving measuRes: CFl BulB usageDaniel RapopoRt: 48-315 envionment i
LiGHTinG CosTs PeR YeAR: $244.56 With the installation all Compact Fluorescent (CFL) bulbs, energy usage and thus cost will decrease significantly.
*(with dimmers reduce the lamp wattage)
monthly lighting load Kwh
electricity cost $/kwh
Monthly Lighting Cost
Jan 136.9 x 0.106 = 14.5
Feb 136.9 x 0.106 = 14.5
mar 136.9 x 0.106 = 14.5
apr 136.9 x 0.106 = 14.5
may 136.9 x 0.106 = 14.5
June 95.7 x 0.106 = 10.1
July 95.7 x 0.106 = 10.1
aug 95.7 x 0.106 = 10.1
sept 95.7 x 0.106 = 10.1
oct 136.9 x 0.106 = 14.5
nov 136.9 x 0.106 = 14.5
dec 136.9 x 0.106 = 14.5
1,477.9 KWh
lighting load
$156.66total lighting Cost
Quantity in the house
average lamp wattage (w)
average hours on per month (h/
mo)
total (wh/mo)
incandescent lights 0 x 68 x 93 = 0
Compact Fluorescent (CFl)
64 x 23 x 93 = 136,896
Fluorescent lights 0 x 0 x 0 = 0
halogen lights 0 x 90 x 5 = 0
other 0 x 0 x 0 = 0
new wattage = 136,896
previous wattage = 213,840
*(with dimmers reduce the lamp wattage)
Quantity in the house
average lamp wattage (w)
average hours on per month (h/
mo)
total (wh/mo)
incandescent lights 0 x 68 x 65 = 0
Compact Fluorescent (CFl)
64 x 23 x 65 = 95680
Fluorescent lights 0 x 0 x 0 = 0
halogen lights 0 x 90 x 3 = 0
other 0 x 0 x 0 = 0
new wattage = 95,680
previous wattage = 149,280
october - may
June - september
Cost of new wattages
Cost of 24 CFl bulbs = $215.20 Resultant energy savings = $87.97 annually payback = 2.4 years
R.3 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
eneRgy saving measuRes: loweR a.C.h.Daniel RapopoRt: 48-315 envionment i
CURRenT HeATinG LoAd CosT: $1,060.76 Tightening air-seals on the building will lower the hourly air exchange (ACH) and thus the heating load. Lower Heating Load = Lower heating bills.
u-value heat loss Coefficient
w-1 0.067 109.6
w-2 0.068 50.6
w-3 0.063 45.0
w-4 0.067 106.9
andersen -arrow line double-hung
0.3 106.1
therma-tru steel Clad exterior doors
0.16 29.6
C-1 0.1 206.4
F-1 0.02 38.9
w-5 0.032 6.6
404.1total ua 1103.7
peak heat loss (Btuh)
71738.2
annual heat loss (mmBtu)
152.7
Bep 26982.4
infiltration Coefficient, aCh = 1 (1.00 * 0.018 * 56,123.5 ft3): 1010.2 Btu*ft3*F infiltration Coefficient, aCh = 0.4 (0.40 * 0.018 * 56,123.5 ft3): 404.1 Btu*ft3*F
1.BLC = 24 UA/
DD
2. mo, HDD(base 65o)
3. Htg. Load BTU x 106
(1. X 2.)
divide by sys. effic.
(eg. .85 = 85%)
3B. Htg. System Demand
(BTU x 106)
4. cost/
mmbtu
Total Heating Cost
Jan 26982.4 x 1153 = 31.1 3 10.4 x 13.21 = 136.99
Feb 26982.4 x 1127 = 30.4 3 10.1 x 13.21 = 133.90
Mar 26982.4 x 1041 = 28.1 3 9.4 x 13.21 = 123.68
Apr 26982.4 x 593 = 16.0 3 5.3 x 13.21 = 70.46
May 26982.4 x 359 = 9.7 3 3.2 x 13.21 = 42.65
June 26982.4 x 139 = 3.8 3 1.3 x 13.21 = 16.51
July 26982.4 x 21 = 0.6 3 0.2 x 13.21 = 2.50
Aug 26982.4 x 0 = 0.0 3 0.0 x 13.21 = 0.00
Sept 26982.4 x 9 = 0.2 3 0.1 x 13.21 = 1.07
Oct 26982.4 x 212 = 5.7 3 1.9 x 13.21 = 25.19
Nov 26982.4 x 447 = 12.1 3 4.0 x 13.21 = 53.11
Dec 26982.4 x 662 = 17.9 3 6.0 x 13.21 = 78.65
5,763
Total HDD
155.5Heating Load
(mmbtu)
51.8System Demand
(mmbtu)
$684.72
Heating Cost
total cost of work (caulking, weatherstripping, infiltration reduction to lower aCh to 0.4 from 1.0) = $320savings ($1,060.76 - $684.72) = $376
payback = 11 months
R.4 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
eneRgy saving measuRes: Ceiling insulationDaniel RapopoRt: 48-315 envionment i
CURRenT HeATinG LoAd CosT: $1,060.76 Adding R-49 Fiberglass BATT ceiling insulation lowers the heating load significantly. Lower Heating Load = Lower heating bills.
u-value heat loss Coefficient
w-1 0.067 109.6
w-2 0.068 50.6
w-3 0.063 45.0
w-4 0.067 106.9
andersen -arrow line double-hung
0.3 106.1
therma-tru steel Clad exterior doors
0.16 29.6
C-1 0.02 42.1
F-1 0.02 38.9
w-5 0.032 6.6
1010.2
total ua 1545.5
peak heat loss (Btuh)
100459.4
annual heat loss (mmBtu)
213.8
Bep 37785.1
previous ceiling insulation u-value: 0.1 improved ceiling insulation u-value: 0.02
1.BLC = 24 UA/
DD
2. mo, HDD(base 65o)
3. Htg. Load BTU x 106
(1. X 2.)
divide by sys. effic.
(eg. .85 = 85%)
3B. Htg. System Demand
(BTU x 106)
4. cost/
mmbtu
Total Heating Cost
Jan 37,785.1 x 1153 = 43.6 3 14.5 x 13.21 = 191.84
Feb 37,785.1 x 1127 = 42.6 3 14.2 x 13.21 = 187.51
Mar 37,785.1 x 1041 = 39.3 3 13.1 x 13.21 = 173.20
Apr 37,785.1 x 593 = 22.4 3 7.5 x 13.21 = 98.66
May 37,785.1 x 359 = 13.6 3 4.5 x 13.21 = 59.73
June 37,785.1 x 139 = 5.3 3 1.8 x 13.21 = 23.13
July 37,785.1 x 21 = 0.8 3 0.3 x 13.21 = 3.49
Aug 37,785.1 x 0 = 0.0 3 0.0 x 13.21 = 0.00
Sept 37,785.1 x 9 = 0.3 3 0.1 x 13.21 = 1.50
Oct 37,785.1 x 212 = 8.0 3 2.7 x 13.21 = 35.27
Nov 37,785.1 x 447 = 16.9 3 5.6 x 13.21 = 74.37
Dec 37,785.1 x 662 = 25.0 3 8.3 x 13.21 = 110.14
5,763
Total HDD
217.76Heating Load
(mmbtu)
72.9System Demand
(mmbtu)
$958.85
Heating Cost
total cost of materials (2063.9 ft2 * $0.40 per sqft) = $825.56savings ($1,060.76 - $958.85) = $101.91
payback = 8.1 years
R.5 RapopoRt ResidenCe 1742 penns CRossing allentown, pa 18104
eneRgy saving measuRes: wall insulationDaniel RapopoRt: 48-315 envionment i
CURRenT HeATinG LoAd CosT: $1,060.76 Adding R-30 Fiberglass BATT wall insulation lowers the heating load significantly. Lower Heating Load = Lower heating bills.
u-value heat loss Coefficient
w-1 0.3 49.1
w-2 0.3 22.3
w-3 0.3 21.4
w-4 0.3 47.9
andersen -arrow line double-hung
0.3 106.1
therma-tru steel Clad exterior doors
0.16 29.6
C-1 0.02 206.4
F-1 0.02 38.9
w-5 0.032 6.6
1010.2
total ua 1538.4
peak heat loss (Btuh)
99997.4
annual heat loss (mmBtu)
212.8
Bep 37611.3
previous wall insulation u-value: 0.63 - 0.68 improved ceiling insulation u-value: 0.03
1.BLC = 24 UA/
DD
2. mo, HDD(base 65o)
3. Htg. Load BTU x 106
(1. X 2.)
divide by sys. effic.
(eg. .85 = 85%)
3B. Htg. System Demand
(BTU x 106)
4. cost/
mmbtu
Total Heating Cost
Jan 37,611.3 x 1153 = 43.4 3 14.5 x 13.21 = 190.95
Feb 37,611.3 x 1127 = 42.4 3 14.1 x 13.21 = 186.65
Mar 37,611.3 x 1041 = 39.2 3 13.1 x 13.21 = 172.41
Apr 37,611.3 x 593 = 22.3 3 7.4 x 13.21 = 98.21
May 37,611.3 x 359 = 13.5 3 4.5 x 13.21 = 59.46
June 37,611.3 x 139 = 5.2 3 1.7 x 13.21 = 23.02
July 37,611.3 x 21 = 0.8 3 0.3 x 13.21 = 3.48
Aug 37,611.3 x 0 = 0.0 3 0.0 x 13.21 = 0.00
Sept 37,611.3 x 9 = 0.3 3 0.1 x 13.21 = 1.49
Oct 37,611.3 x 212 = 8.0 3 2.7 x 13.21 = 35.11
Nov 37,611.3 x 447 = 16.8 3 5.6 x 13.21 = 74.03
Dec 37,611.3 x 662 = 24.9 3 8.3 x 13.21 = 109.64
5,763
Total HDD
216.75Heating Load
(mmbtu)
72.25System Demand
(mmbtu)
$954.44Heating Cost
total cost of materials (1,595.1 ft2 * $0.31 per sqft) = $1453.56savings ($1,060.76 - $954.44) = $106.32
payback = 13.7 years