EPA has updated the ENERGY STAR Tax Credits for Home Builders webpage based on new guidance for taxpayers on the § 45L New Energy Efficient Home Credit issued by the IRS in September 2023.
ENERGY STAR Residential New Construction Program Requirements
Harmon, OK at a glance
County-Level Design Temperature Limits
Below are the heating and cooling design temperature limits for the selected state and county. These limits generally must not be exceeded in the HVAC design for an apartment that will be certified in this location. See the Design Temperature Limit Reference Guide for exceptions and details.
1% Cooling Limit102°F
99% Heating Limit19°F
Efficiency Features at a Glance
2009 IECC Climate Zone 3
Below is the set of efficiency features modeled to determine the ENERGY STAR HERS Index Target for homes in Climate Zone 3. While the features are not mandatory, if they are not used then other measures will be needed to achieve the target. See National Program Requirements Version 3.1 (PDF, 214 KB) for complete details.
Envelope, Windows, & Doors | |
---|---|
Radiant Barrier? | n/a |
Insulation Install. Quality | Grade I |
Ceiling Insulation | R-38 |
Wall Insulation | R-20 cavity or R-13 cavity + 5 cont. |
Mass Wall Insulation | R-8 ext or R-13 int |
Floor Insulation | R-19 |
Basement Wall Insulation | R-5 cont. or R-13 cavity |
Crawlspace Wall Insulation | R-5 cont. or R-13 cavity |
Slab Insulation | 0 |
Infiltration Rate | 3 ACH50 |
Windows | U-factor: 0.30 / SHGC: 0.25 |
Door: Opaque | U-factor: 0.17 / SHGC: Any |
Door: ≤ 1/2 Lite | U-factor: 0.25 / SHGC: 0.25 |
Door: > 1/2 Lite | U-factor: 0.30 / SHGC: 0.25 |
Heating and Cooling Equipment | |
---|---|
Gas Furnace | 80 AFUE, ENERGY STAR |
Oil Furnace | 80 AFUE |
Gas Boiler | 80 AFUE |
Oil Boiler | 80 AFUE |
Heat Pump | 8.2 HSPF / 15 SEER / 12 EER |
Air Conditioner | 15 SEER / 12 EER |
Water Heating Equipment | |
---|---|
Efficiency varies by tank size. Common sizes shown below. | |
Gas Water Heater | 40 gal: 0.61 EF; 60 gal: 0.57 EF |
Electric Water Heater | 40 gal: 0.93 EF; 60 gal: 0.91 EF |
Oil Water Heaters | 40 gal: 0.53 EF; 60 gal: 0.49 EF |
Solar Water Heater | n/a |
Thermostats & Ductwork | |
---|---|
Thermostat Type | Programmable |
Location of Ducts and Air Handlers |
All within conditioned space |
Duct Insulation for Ducts In Unconditioned Space |
n/a |
Duct Leakage to Outside | n/a |
Lighting & Appliances | |
---|---|
Refrigerators | ENERGY STAR |
Dishwashers | ENERGY STAR |
Ceiling Fans | ENERGY STAR |
Lighting | ENERGY STAR light bulbs in 90% of Qualifying Light Fixture Locations |