Building Green at Nathan Carlisle Homes

At Nathan Carlisle each home is ENERGY STAR CERTIFIED, verified to meet strict guidelines for energy efficiency set by the U.S. Environmental Protection Agency. 

Our homes save money on utility bills, provide a more comfortable living environment with better indoor air quality, and help protect the environment. Each house is also inspected by an independent organization and assigned a HERS rating. to the left is an example of a HERS scale. Typically, Nathan Carlisle homes score around a 70 or better! Read the description on the HERS rating system below for more information.

An energy efficient home is a better built home.

Nathan Carlisle Homes takes every measure within our homes to reduce your energy consumption thus ultimately saving you money on your utility bills. From our high efficiency HVAC systems, to our Low-E Windows, to the insulation between the walls, we know what it takes to build you an energy efficient home you will be proud of.

About the HERS Index

The HERS Index is a scoring system established by the Residential Energy Services Network (RESNET) in which a home built to the specifications of the HERS Reference Home (based on the 2004 International Energy Conservation Code) scores a HERS Index of 100, while a net zero energy home scores a HERS Index of 0. The lower a home's HERS Index, the more energy efficient it is.

Each 1-point decrease in the HERS Index corresponds to a 1% reduction in energy consumption compared to the HERS Reference Home. Thus a home with a HERS Index of 85 is 15% more energy efficient than the HERS Reference Home and a home with a HERS Index of 80 is 20% more energy efficient. Typically, Nathan Carlisle Homes score a 70 or better, which means they are 30% more energy efficient than the HERS Reference Home.

Actual savings may vary and may depend in part on occupant behavior, timing and/or fluctuating costs of energy usage, and actual climate zone conditions. All referenced energy savings is based on data published by the EPA and DOE. Feature are subject to change without notice or obligation.