Sunset Hills, MO

Zero Energy Ready Home Case Study

At Stockell Homes, our commitment to exceptional energy performance is evident in every detail. Here’s how our homes deliver better efficiency, comfort, and sustainability. The following case study was done on a 7,629 square foot home in Sunset Hills, MO. 

Better environments inside & out

Energy Star Certified

Energy Star Results
Energy Star
EPA

Better environments inside & out

EPA Indoor airPlus

Every Indoor airPLUS qualified home is also ENERGY STAR certified and includes additional features to help protect you and your family against potential health risks such as moisture and mold, pest, combustion gases, garage pollutants, and in certain areas of the country, radon gas. You can also expect a more comfortable living environment because ENERGY STAR and Indoor airPLUS homes include properly engineered HVAC systems, improved duct and equipment installation, and fresh air ventilation designed for energy efficient new homes. Homes are qualified to meet EPA’s fresh air ventilation designed for energy efficient new homes. Homes are qualified to meet EPA’s comprehensive Indoor airPLUS construction specifications by a certified Home Energy Rater.

To learn more about the verified indoor air quality features of your new home, ask your builder to go over the completed Indoor airPLUS verification checklist with you.  To protect your investment for years to come, you’ll need to maintain the condition of your qualified home. Just as your car needs regular maintenance to continue running smoothly, your home will need regular maintenance, too. Follow your builder’s recommendations for home care, and plan to have a qualified HVAC system professional service your system at the beginning of each heating and cooling season. Maintaining good indoor air quality also means never smoking indoors, ventilating during and after activities that involve the use of chemicals or other pollutants, and testing your house for radon.

Zero Energy Excellence

DOE ZERH

Below is a detailed breakdown of the home’s energy performance.

Energy Performance

House Type 

DOE Zero Energy Ready Home Builder Partner ID#

Single-family detached

2017

Year built 

Square footage of Conditioned Space including Basement

2021

7629.0

Number of Bedrooms 

Square footage of Conditioned Space without Basement

5

7629.0

Site address (if not available, list the site Lot #) 

Registered Builder

************** Lane

Stockell General Contracting

Sunset Hills 

Certified Rater

MO, 63128

Gary Fries

HERS Index without On-site Generation 

Date of Rating

36

2021-11-20

HERS Index with On-site Generation 

Rating Software

1

REM/Rate – v16.0.6

HERS Index of the Target Home using size adjustment factor

Estimated annual energy costs($)

47

454

Estimated annual energy use 

Estimated annual energy savings

Electric: -1111 kWh \ Natural Gas: 174 Therms

Electric: 52796 kWh \ Natural gas: 126 Therms

Energy cost rates 

Estimated annual emissions reductions

Electric: 0.04 $/kWh \ Natural Gas: 0.65 $/Therms

CO2: 48.5 tons / SO2: 302.1 lbs / NOx: 69.9 lbs

DOE Zero Energy Ready Home Certification

As the certified Rater for this house, I certify this house meets/complies with all mandatory requirments of the DOE Zero Energy Ready home guidelines, including the following: 

X

Compliance with all ENERGY STAR Qualified Homes Version 3 requirements and checklists

X

Compliance with Mandatory Fenestration Requirements

X

Compliance with Mandatory Insulation Requirements

X

Compliance with Mandatory Duct Location Requirements

X

Compliance with Mandatory Appliance Requirements

X

Compliance with Mandatory Lighting Requirements

X

Compliance with Mandatory Fan Efficiency Requirements

X

Compliance with Mandatory EPA Indoor airPLUS

X

Compliance with Mandatory Water Efficieny Requirements

X

Compliance with Mandatory Renewable Energy Ready Solar Electric Requirements

 

This home was qualified via sampling in lieu of testing, in accordance with allowable sampling provisions as stated in the DOE Zero Energy Ready Home National Program Requirements

Optional Compliance for Builder Recognition

I further certify that the following also apply to this house: 

YES

NO

DON’T KNOW

Optional Home Builder Commitments for Recognition

*Certification under the DOE Zero Energy Ready Home permits limited exceptions to full compliance with Indoor airPLUS. Builders seeking the Indoor airPLUS label must achieve full compliance with the Indoor airPLUS Verification Checklist.

REM/Rate – Residential Energy Analysis and Rating Software v16.0.6 This information does not constitute any warranty of energy costs or savings. © 1985-2021 NORESCO, Boulder, Colorado. 

Efficiency You Can See

2018 Energy Star Certification

The certificate below verifies that the home exceeded the required benchmarks for energy efficiency.

2018 EPA Certificate

Results that matter

Air Leakage

See the results of the Air Leakage test done on the home

Whole House Filtration
Natural ACH Heating: 0.08  Cooling: 0.05
ACH @ 50 Pascals Heating: 1.04  Cooling: 1.04
CFM @ 25 Pascals Heating: 790  Cooling: 790
CFM @ 50 Pascals Heating: 1240  Cooling: 1240
Eff. Leakage Area (sq.in) Heating: 68.1  Cooling: 68.1
Specific Leakage Area Heating: 0.08  Cooling: 0.05
ELA/100 sf shell (sq.in) Heating: 0.51  Cooling: 0.51
CFM50/sf shell Heating: 0.09  Cooling: 0.09
Duct Leakage
CFM @ 25 Pascals Main Level: 14  Second Level: 10
CFM25 / CFMfan Main Level: 0.0058  Second Level: 0.0120
CFM25 / CFA Main Level: 0.0025  Second Level: 0.0054
CFM per Std 152 Main Level: N/A  Second Level: N/A
CFM per Std 152 / CFA Main Level: N/A  Second Level: N/A
CFM @ 50 Pascals Main Level: 22  Second Level: 16
Eff. Leakage Area (sq.in) Main Level: 1.21  Second Level: 0.86
Thermal Efficiency Main Level: N/A  Second Level: N/A
Total Duct Leakage Units Main Level: CFM25/CFA  Second Level: CFM25/CFA
Total Duct Leakage Main Level: 0.0145 Second Level: 0.0297
Ventilation
Adj. Sensible Recovery Eff. (%)Balanced: 74.7  ASHRAE: 62.2-2010/62.2-2013
Adj. Total Recovery Eff. (%)Balanced: 65.5  ASHRAE: 
Rate (cfm)Balanced: 100  ASHRAE: 121/217
Hours/DayBalanced: 24.0  ASHRAE: 24.0/24.0
Fan WattsBalanced: 124  ASHRAE: 
Cooling VentilationBalanced: Natural Ventilation  ASHRAE: 

ASHRAE 62.2 – Ventilation Requirements
The ASHRAE 62.2 flow rates shown above are the CONTINUOUS mechanical fresh air ventilation which will meet the ‘whole-building’
requirement under that version of the standard. The 62.2-2013 rate incorporates any appropriate ‘infiltration credit’. Intermittent
mechanical ventilation may be used if the flow rate is adjusted accordingly. For example, the runtime can be reduced to 12 hours
per day using a doubled flow rate, as long as the system provides ventilation at least once every 3 hours. For more detail, refer to
the appropriate standard.

REM/Rate – Residential Energy Analysis and Rating Software v16.0.6
This information does not constitute any warranty of energy costs or savings.
© 1985-2021 NORESCO, Boulder, Colorado

Proven Performance

Energy Cost & Features

See the breakdown of the Energy Features on the home.

Energy Features
Ceiling w/Attic R-60+5 Blown, Attic******* U=0.015
Sealed Attic None
Vaulted CeilingNone
Above Grade WallR-21+R3****** U=0.048
Foundation Walls (Cond) R-5Cont+R13 Wall****** R=18.0
Foundation Walls (Uncond)None
DoorsSteel-urth w/brk* U=0.187
Windows .25/.27****** U=0.250
Floors None
Slab FloorsR-10 Under Slab******** U=0.079
Infiltration Htg: 1240 Clg: 1240 CFM50
Infiltration MeasureBlower door
Mechanical Ventilation Balanced: ERV, 100 cfm, 142.8 watts
Interior MassNone
Mechanical Equipment 1GSHP: Htg: 90.3 kBtuh, 4.4 COP. Clg: 71.9 kBtuh, 24.8 EER, with
Desuperheater.
Mechanical Equipment 2GSHP: Htg: 42.0 kBtuh, 3.9 COP. Clg: 24.9 kBtuh, 22.2 EER, with
Desuperheater.
Mechanical Equipment 3Water Heating: Instant water heater, Gas, 0.96 EF.
Mechanical Equipment 4Water Heating: Instant water heater, Gas, 0.92 EF.
Programmable Thermostat Heat=Yes; Cool=Yes
DuctsR-8.0Conditioned space

 

Duct Leakage to Outside14.00 CFM @ 25 Pascals
Total Duct Leakage84.00 CFM @ 25 Pascals
Lights/AppliancesRating Tab
Active SolarNone
Photovoltaics9476.00
SunspaceNo

Note: Where feature level varies in home, the dominate value is shown. REM/Rate – Residential Energy Analysis and Rating Software v16.0.6
This information does not constitute any warranty of energy costs or savings.
© 1985-2021 NORESCO, Boulder, Colorado.

Outcomes You Can Trust

2005 EPACT Energy Efficient Home 45L Tax Credit

Below you will find where Gary states this home meets the requirements and gives the certificate of a ZERH.

Energy Star Results