66 Ridge View Rd- Energy Efficiency Plan - 2022-07-15
ENERGY EFFICIENCY PLAN
Project Address: 66 Ridge View Rd Northampton, MA
Conditioned Floor Area 6,351 ft2
Volume 112,541 ft3
Building Type Single family detached
Bedrooms 5
Assumptions for Preliminary Home Energy Rating
CET has completed a Preliminary Home Energy Rating based on the construction plans you have provided. Any
energy features not listed below are assumed to meet the prescriptive requirements of the IECC 2018.
Building Envelope Specifications Used in Analysis
Under Slab 4” XPS under (R-20)
Foundation Walls 2” Polyiso (R-13) on interior and 2” XPS to grade on exterior (R-10)
Exterior Walls Double Stud 10” with 3” gap (R-37)
Sloped Ceilings 5” Closed Cell Spray Foam (R-35) and 11” Cellulose (R-41)
Windows U-value = 0.20, SHGC = 0.30
Exterior Doors R-5 / U-0.20
Blower Door Test 2.0 ACH50 or better
Thermal Enclosure Checklist, sections 2&4 Meet all Checklist Requirements as verified by a HERS rater at pre-
drywall and final inspection
Plumbing & Mechanical Systems Specifications Used in Analysis
Heating and Cooling Equipment Ground Source Heat Pump
Other Heating Air Source Heat Pump
Water Heating Equipment Electric Tank Desuperheater Off Ground Source HP
Whole House Ventilation Balanced ERV venting 150 cfm using less than 150 watts
Lighting & Appliances Specifications Used in Analysis
Lighting 100% LED
Refrigerator ENERGY STAR Certified
Clothes Washer ENERGY STAR Certified
Clothes Dryer ENERGY STAR Certified
Dishwasher ENERGY STAR Certified
ENERGY EFFICIENCY PLAN
Page 2 of 2 ~ Please send signed form to the Center for EcoTechnology
Tel (413) 586-7350 ext.242 ~ Fax (413) 586-7351 ~ greenhome@cetonline.org
Preliminary Home Energy Rating Results
Based on the assumptions described above, we have calculated the following Preliminary Home Energy Rating results.
Preliminary HERS Index: 47
Estimated Mass Save Rebate: $ 8,900 *
Note that Confirmed Home Energy Rating results may vary from the Preliminary Home Energy Rating results due to
changes in building plans, energy features installed in the home, RESNET standards, software changes, and other
factors.
* = Mass Save Residential New Construction requirements and incentive amounts can change at any time without
notice at the discretion of program sponsors. We anticipate, but do not guarantee, that current program requirements
and incentive amounts will apply to this project as long as it is completed and inspected within 12 months of the date of
this document.
Preliminary Rater: Matt Zarotny
Date: 7/15/22
Job #: 22-68138