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TREAT Sample Projects
Sample Utility Bills for Download
Case Study Utility Bills for Download
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Common U-Values


TREAT Sample Projects

The sample projects listed here may be useful for new users wanting to familiarize themselves with the TREAT modeling process. Demo users of TREAT may also download these files.

Note: these files only work with TREAT version 2.6 or newer. They will not work with previous versions.

2 Story Trued to Utility Bills

Quick Info
File Name: 2StoryTruedToUtilityBills.tpg
File Size: 420 KB
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General Description:

This sample project is a two story colonial located in Green Bay, WI. The home contains 1800 square foot of conditioned space heated by an older furnace. The envelope contains no wall insulation, single pane windows and has recorded a blower door reading of 2200 CFM @ 50 Pa. Utility records show a pattern of high energy usage (over 2000 therms/ year for heating). A utility bill analysis has been performed for both electric and natural gas. The furnace and the majority of the ductwork are located in the basement. The home is centrally cooled with a 3 ton split system installed in 1985.

The thermostat has been set to 68F as the occupied heating temperature and is set back to 60F for 14 hours per day. The occupied cooling temperature is set to 72F with setbacks to 85F for 12 hours per day.

Hot water is produced by a direct fired, natural gas, 40 gallon hot water heater. Appliances include a clothes washer, electric dryer, electric oven and range, two refrigerators (an older refrigerator is located in the basement).

Improvements include: a high efficiency furnace replacement, a cooling system replacement, air sealing, dense pack cellulose in all exterior walls, addition of 10″ of cellulose in attic over existing fiberglass, refrigerator replacement, window replacement and an full heating system conversion to a high efficiency boiler with an indirect tank for domestic hot water.

Packages Included:

“Insulation & Air Sealing Only” – Dense pack insulation in walls, 10″ additional cellulose insulation in attic, air sealing (reduction from 2200CFM to 1500CFM).

“Savings from Windows Only” – Includes window replacement and infiltration reduction associated with window replacement (estimated 500 CFM reduction)

“All Measures, Furnace option” – Includes a new furnace and all other measures including air sealing, insulation, windows, refrigerator replacement.

“All Measures, Boiler option, no windows” – Include a new boiler, DHW zoned off boiler and all other measures EXCEPT windows.

Ranch With Basement

Quick Info
File Name: RanchWithBasement.tpg
File Size: 413 KB
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General Description

This sample project is a ranch with a basement located in Buffalo, NY. This 1200 square foot home employs an older boiler, no wall insulation, single pane windows and has recorded a blower door of 3200 CFM @ 50 Pa. A utility bill analysis has NOT been performed. The boiler and all piping is located in the basement. The home employs no cooling system.

The thermostat is set to 65F as the occupied heating temperature and is set back to 60F for 8 hours per day (based upon homeowner interview).

Hot water is produced by a direct fired tank, natural gas, 40 gallon hot water heater. Appliances include a clothes washer, electric dryer, electric oven and range, and an older refrigerator.

Improvements modeled include: boiler replacement, insulation upgrade of walls and attic, refrigerator replacement, compact fluorescent bulbs for lighting, window replacement, and targeted air sealing.

Packages include:

“Insulation and Air Sealing Only” – calculates the savings from dense pack of walls, upgrading attic insulation to R47, targeted air sealing with foam plus infiltration benefits of dense pack (target 1500 CFM).

“Insulation, Air Sealing, New Boiler” – same as above except package has been expanded to also include a boiler replacement.

“All Measures”- Includes insulation, boiler, new refrigerator, window replacement, lighting replacement with compact fluorescent bulbs, and dryer venting to the outdoors (health & safety).

Older Style Trailer

Quick Info
File Name: OlderStyleTrailer.tpg
File Size: 311 KB
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General Description

Sample project is based upon an older style trailer located in Concord, NH. This 890 square foot trailer was built in 1970 and has had a wood frame sloped roof added. It employs the original furnace, minimal wall insulation, single pane windows and has recorded a blower door of 2000 CFM @ 50 Pa. A utility bill analysis has NOT been performed. The trailer employs no cooling system.

The thermostat is set to 62F as the occupied heating temperature and is set back to 58F for 12 hours per day (based upon homeowner interview).

Hot water is produced by an electric 30 gallon hot water heater. Appliances include an electric oven, range, and the original 1970 refrigerator.

Improvements modeled include: a high efficiency furnace replacement, air sealing, roof insulation upgrade, new windows, air sealing, a new propane-fired hot water heater and a health & safety improvement named “Flash patch roof”.

Packages Include:

“Insulation and Air Sealing Only” – calculates the savings from targeted air sealing and dense packing the roof cavity insulation.

“All Measures”- Includes insulation, new furnace, window replacement, new propane-fired water heater, air sealing and flash patching of the roof (health & safety).

“All Measures Except Windows” – same as above except windows are not included in the package.

6-Unit Garden Apartment

Quick Info
File Name: 6unitgardenapartment.tpg
File Size: 380 KB
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General Description

Three story garden apartments located in Syracuse, NY. This sample project is a 4300 square foot building containing 6 apartments. The building was constructed in 1965 and contains the original 250,000 btu/hour boiler, R11 insulation in walls, R19 in the attic, double pane windows, and an 80 gallon gas-fired hot water tank. A blower door was not a viable technique to measure infiltration, instead the ACH (air changes per hour) was estimated and adjusted to match billing. The landlord pays all gas bills for heat and hot water. Tenants pay all other electric costs. A utility bill analysis has been performed for both electric and natural gas.

The boiler and the hot water heater are located in the ground level mechanical room. The main living area of each apartment is cooled by a 12,000 btu/hour, through-wall unit. These AC units are original circa 1965. The walls AC units are estimated to have an aggregated output capacity of 72,000 btu/ hour.

The thermostat is set to 72F as the occupied heating temperature and not set back (since tenants do not pay for heat). The occupied cooling temperature is set to 75F with setbacks to 90F for 16 hours per day (tenants pay their own cooling costs). Temperature set points were adjusted as part of the comparison to a billing analysis.

Hot water is produced by a direct fired, natural gas, 80 gallon hot water heater. Shared appliances include a coin-op clothes washer with matching coin-op gas dryer. Each apartment has an electric oven and range, a refrigerator, and a dishwasher.

Improvements modeled include: a boiler replacement, an indirect domestic hot water tank zoned off the new boiler, new AC units, targeted air sealing, an additional 10″ of cellulose over the existing 6″ of fiberglass in attic, refrigerator replacement, low flow shower heads, and lighting improvements.

Packages Included:

New Boiler with Indirect DHW tank, Insulation, Air Sealing- 93% efficient boiler with outdoor reset control, 28 gallon hot water tank zoned off boiler, 10″ of cellulose over existing fiberglass,
and targeted air sealing in the attic.

Electric Measures Only – Includes measures which reduce electric consumption. This includes new refrigerators, lighting, and air conditioners.

Boiler and DHW Only – Includes 93% efficient boiler with outdoor reset control and a 28 gallon hot water tank zoned off the new boiler.

Insulation & Air Sealing Only – Increase attic insulation to R52, decrease uncontrolled ACH to .64 from .81.(estimated 20% reduction based upon visual inspection of large accessible air pathways in attic).

All Measures– contains all the Improvements including boiler, DHW tank, windows, AC units, insulation, air sealing, lighting, and refrigerators.

120-Unit High Rise Multifamily

Quick Info
File Name: 120UnitHighRiseMultifamily.tpg
File Size: 340 KB
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General Description

A twenty story high rise apartment building located in New York, NY. This sample project is a 78,000 square foot building containing 120 apartments. The building was constructed in 1950 and contains the original 10,000,000 btu/hour oil-fired steam boiler. The building envelope consists of 8″ block walls with 4″ face brick, 4″ concrete flat roof with no insulation, and single pane windows. Domestic hot water is produced by a separate 500,000 btu/hr oil-fired boiler with a 500 gallon storage tank. A blower door was not a viable technique to measure infiltration, instead the ACH (air changes per hour) was estimated and adjusted to match billing. The landlord pays all utility costs including oil for heat, hot water and all other electric costs. A utility bill analysis has been performed for both electric and #2 oil.

Both boilers are located in the basement level mechanical room. Each apartment contains a through-wall PTAC AC unit installed in the living area. The average AC unit is sized at 12,000 btu/hour. All AC units were installed in 1982 and are estimated to have an aggregated output capacity of 1,440,000 btu/ hour (average unit size * 120 units). Note: only ½ of each apartment is served by air conditioning (living area only). Window units are not permitted in bedrooms due to wiring and electrical load concerns.

The thermostat is set to 73F as the occupied heating temperature and not set back (since tenants do not pay for heat -thermostat was adjusted to match billing). The occupied cooling temperature is set to 71F with no setbacks (tenants do not pay their own cooling costs – adjusted to match billing).

Shared appliances include a 6 coin-op clothes washer with 4 matching coin-op electric dryers. These are located in the basement. Each apartment has an electric oven and range, and a refrigerator.

Improvements modeled include: a boiler replacement, new Energy Star refrigerators, new Energy Star rated washers and gas dryers, new AC units, targeted air sealing including window weather stripping, an additional 2″ of rigid insulation under new roof, and lighting improvements.

Packages Included

“Measures with Payback of 10 years or less “- included measures with a simple payback of ten years or less. Includes: 86% efficient boiler with outdoor reset control, new Energy Star rated refrigerators and clothes washers, gas dryers, window weather strip instead of window replacement, replacement of all incandescent fixtures with 20 W fluorescent fixtures in apartments, and 2″ of additional insulation in roof.

“Fast Payback Package” – Includes measures which enjoy a simple payback of 5 years or less. This includes new refrigerators, lighting, window weather stripping, washers, dryers and additional roof insulation.

“All Measures Package” – Contains all measures regardless of simple payback. Package included new boiler, appliances, lighting, roof insulation, new windows, and AC units.


Sample Utility Bills for Download

Sample Electric

 


Case Study Utility Bills for Download

Case Study Electric

Case Study Gas


PSD Calculator

PSD Calculator contains a growing list of simple Building Performance functions, such as air exchange rates and area calculations. It is free to download and use. Our home performance contracting auditors use it for a quick reference.

PSD
Calculator 0.8 is available as of 8/9/2006. We will continue to release updates periodically. Useful feature requests will be considered.

Download: PSD Calculator 


Common U-Values

Click Here to View Table

Frame Description Glazing Description Type Frame Code Glazing Code Window U-value Window SHGC

Wood/vinyl, Fixed

7/8″ double glass, 0.63″ argon space,

e = 0.1 on surface 2 or 3, clear

Fixed

16

141

0.31

0.47

Wood/vinyl, Operable

7/8″ double glass, 0.63″ argon space,

e = 0.1 on surface 2 or 3, clear

Slider

15

141

0.33

0.4

Wood/vinyl, Fixed

ce 2 or 3, cle7/8″ double glass, 0.63″ argon space;

e = 0.2 on surfaar

Fixed

16

139

0.34

0.51

Wood/vinyl, Operable

7/8″ double glass, 0.63″ argon space;

e = 0.2 on surface 2 or 3, clear

Slider

15

139

0.35

0.43

Wood/vinyl, Fixed

7/8″ double glass, 0.63″ air space,

e = 0.1 on surface 2 or 3, clear

Fixed

16

140

0.35

0.47

Wood/vinyl, Operable

7/8″ double glass, 0.63″ air space,

e = 0.1 on surface 2 or 3, clear

Slider

15

140

0.37

0.4

Aluminum with 3/8″ thermal break, Operable

7/8″ double glass, 0.63″ argon space,

e = 0.1 on surface 2 or 3, clear

Slider

7

141

0.37

0.43

Wood/vinyl, Fixed

1/2″ double glass, 0.25″ argon space,

e = 0.1 on surface 2 or 3, clear

Fixed

16

22

0.38

0.47

Wood/vinyl, Fixed

7/8″ double glass, 0.63″ air space,

e = 0.2 on surface 2 or 3, clear

Fixed

16

138

0.38

0.51

Wood/vinyl, Operable

1/2″ double glass, 0.25″ argon space,

e = 0.1 on surface 2 or 3, clear

Slider

15

22

0.39

0.4

Wood/vinyl, Operable

7/8″ double glass, 0.63″ air space,

e = 0.2 on surface 2 or 3, clear

Slider

15

138

0.39

0.43

Aluminum with 3/8″ thermal break, Operable

7/8″ double glass, 0.63″ argon space;

e = 0.2 on surface 2 or 3, clear

Slider

7

139

0.39

0.47

Aluminum with 3/8″ thermal break, Operable

7/8″ double glass, 0.63″ air space,

e = 0.1 on surface 2 or 3, clear

Slider

7

140

0.4

0.43

Wood/vinyl, Fixed

1/2″ double glass, 0.25″ argon space,

e = 0.2 on surface 2 or 3, clear

Fixed

16

18

0.4

0.51

Wood/vinyl, Operable

1/2″ double glass, 0.25″ argon space,

e = 0.2 on surface 2 or 3, clear

Slider

15

18

0.41

0.43

Aluminum with 3/8″ thermal break, Operable

1/2″ double glass, 0.25″ argon space,

e = 0.1 on surface 2 or 3, clear

Slider

7

22

0.42

0.43

Aluminum with 3/8″ thermal break, Operable

7/8″ double glass, 0.63″ air space,

e = 0.2 on surface 2 or 3, clear

Slider

7

138

0.42

0.47

Wood/vinyl, Operable

1/2″ double glass, 0.25″ air space,

e = 0.1 on surface 2 or 3, clear

Slider

15

20

0.43

0.4

Wood/vinyl, Fixed

1/2″ double glass, 0.25″ air space,

e = 0.1 on surface 2 or 3, clear

Fixed

16

20

0.43

0.47

Aluminum with 3/8″ thermal break, Operable

1/2″ double glass, 0.25″ argon space,

e = 0.2 on surface 2 or 3, clear

Slider

7

18

0.44

0.47

Wood/vinyl, Operable

1/2″ double glass, 0.25″ air space,

e = 0.2 on surface 2 or 3, clear

Slider

15

16

0.45

0.43

Wood/vinyl, Operable

7/8″ double glass, 0.63″ argon space, clear

Slider

15

133

0.45

0.48

Wood/vinyl, Fixed

1/2″ double glass, 0.25″ air space,

e = 0.2 on surface 2 or 3, clear

Fixed

16

16

0.46

0.51

Wood/vinyl, Fixed

7/8″ double glass, 0.63″ argon space, clear

Fixed

16

133

0.46

0.57

Aluminum with 3/8″ thermal break, Operable

1/2″ double glass, 0.25″ air space,

e = 0.1 on surface 2 or 3, clear

Slider

7

20

0.47

0.43

Wood/vinyl, Operable

7/8″ double glass, 0.63″ air space, clear

Slider

15

132

0.47

0.48

Wood/vinyl, Fixed

7/8″ double glass, 0.63″ air space, clear

Fixed

16

132

0.48

0.57

Wood/vinyl, Operable

1/2″ double glass, 0.25″ argon space, clear

Slider

15

6

0.49

0.48

Aluminum with 3/8″ thermal break, Operable

1/2″ double glass, 0.25″ air space,

e = 0.2 on surface 2 or 3, clear

Slider

7

16

0.5

0.47

Aluminum with 3/8″ thermal break, Operable

7/8″ double glass, 0.63″ argon space, clear

Slider

7

133

0.5

0.52

Wood/vinyl, Fixed

1/2″ double glass, 0.25″ argon space, clear

Fixed

16

6

0.51

0.57

Wood/vinyl, Operable

1/2″ double glass, 0.25″ air space, clear

Slider

15

4

0.52

0.48

Aluminum with 3/8″ thermal break, Operable

7/8″ double glass, 0.63″ air space, clear

Slider

7

132

0.52

0.52

Aluminum with 3/8″ thermal break, Operable

1/2″ double glass, 0.25″ argon space, clear

Slider

7

6

0.54

0.52

Wood/vinyl, Fixed

1/2″ double glass, 0.25″ air space, clear

Fixed

16

4

0.54

0.57

Aluminum with 3/8″ thermal break, Operable

1/2″ double glass, 0.25″ air space, clear

Slider

7

4

0.57

0.52

Aluminum w/o thermal break, Operable

1/2″ double glass, 0.25″ air space, clear

Slider

1

4

0.61

0.56

Wood/vinyl, Operable

1/8″ single glass, clear

Slider

15

1

0.86

0.57

Aluminum with 3/8″ thermal break, Operable

1/8″ single glass, clear

Slider

7

1

0.95

0.62

Wood/vinyl, Fixed

1/8″ single glass, clear

Fixed

16

1

0.95

0.68

Aluminum w/o thermal break, Operable

1/8″ single glass, clear

Slider

1

1

1

0.66