Our homes are energy efficient. We are so confident you can heat and cool our typical 1860 sq. ft. home and full basement for as little as $344 per year, we will guarantee your annual heating and cooling costs for the first three years you own the home. This cost of $344 for our 1860 sq. ft. ranch was calculated using the Wayne, Nebraska location, 8¢ per KWH, and a gas rate of 66¢ per therm with a high efficiency natural gas furnace. It would calculate to be only $792 per year, just $66 per month with a propane furnace with propane at $1.69 per gallon, or $529 per year, just $44 per month with an electric heat pump and 8¢ per KWH winter and 10¢ per KWH summer rate.
The calculations, home inspections, (done both during construction and upon completion) and blower door test are done by American Energy Advisors, an independent RESNET HERS Rater and Building Performance Institute Analyst. There is no magic to building a home good enough to receive a rating in the 30 to 60 range, but everything has to be done just right. And when a home is built inside in modular sections, it is a lot easier to get everything right. Most stick builders don’t have the kind of quality control and fortitude to try to build to these standards.
*We will calculate your total energy costs using your local unit energy costs, your design, your locations’ degree days, and your preferred energy source such as electricity, natural gas, or propane, and size your HVAC equipment accordingly. Should your annual costs be more than calculated, Heritage Homes will pay the difference. Any change in energy unit costs will recalculate the cost guarantee amount. To monitor the heating and cooling energy usage only, additional meters will be required at the owner’s expense.
Building a home extra tight with energy efficient techniques doesn’t really cost a lot more. Rather, it’s about managing all the details and engineering energy efficiency into the home. Foundation walls must be insulated to an R-13, and to achieve these calculated costs, you need to use a 14 SEER electric air conditioner. Insulated ductwork is not required.
Lights, appliances, and big screen TV’s are now the biggest users of energy in a typical home ($835 compared to $344) and cost much more than the heating and cooling costs. Taxes and service charges could be as much as $397 of the total bill, and water heating costs as much as $101 per year.
RESNET. The Nation’s Standards for Home Energy Efficiency
The Residential Energy Services Network (RESNET) was founded in 1995 as an independent, non-profit organization to help homeowners reduce the cost of their utility bills by making their homes more energy efficient.
The Home Energy Rating System (HERS) Index is the industry standard by which a home’s energy efficiency is measured. It’s also the nationally recognized system for inspecting and calculating a home’s energy efficiency. You can find every home rated in the RESNET National Rating Registry at http://www1.resnet.us/registry
How Does a Home Energy Rating Work?
A comprehensive HERS home energy rating, conducted by a certified RESNET Home Energy Rater, is the most in-depth energy performance assessment of a home that you’ll find. It consists of diagnostic testing using specialized equipment, such as a blower door test, duct leakage tester, combustion analyzer and infrared cameras to determine:
- The tightness of the building envelope
- Leakage from HVAC distribution ducts
- The effectiveness of wall and ceiling insulation
- Attics, foundations and crawlspace energy loss
- The energy efficiency of windows and doors
- Water heating system and thermostat efficiency
The HERS rating provides a computerized simulation analysis utilizing RESNET Accredited Rating Software to calculate a rating score on the HERS Index. The report will also contain a
cost/benefit analysis for any heating equipment upgrades and expected return on investment.
How Does the HERS Index Work?
To calculate a home’s HERS Index Score, a certified RESNET Home Energy Rater will do a home energy rating and compare the data against a ‘reference home’ – a design modeled home of the same size and shape as the actual home, so the HERS Index Score is always relative to the size, shape, and type of home. The lower the number, the more energy efficient the home.
The U.S. Department of Energy has determined that a typical resale home scores 130 on the HERS Index while a standard new home is rated at 100.
- A home with a HERS Index Score of 56 is 44% more energy efficient than a standard new home.
- A home with a HERS Index Score of 130 is 30% less energy efficient than a standard new home.
HERS Index Score of a Home
After construction and inspection, Heritage Homeowners will receive a High-Performance Home Energy Rating Certificate. Homes built by Heritage Homes generally receive a 5 Star Plus rating with a HERS Index between 30 and 60, a very long way from the 100 rating of a standard conventionally built home. This means that it will have an energy usage of only 30-60% of the typical standard new construction home that rates 100. The certificate will show the estimated Annual Energy Consumption for heating, cooling, water heater, lights and appliances and the estimated annual energy costs of each category, plus service charges.
Our Typical Home
Our model home here in Wayne, NE with 3708 sq. ft. of conditioned space, 1854 up and down is projected to have a HERS Index of 56 – the average of all our homes scored in the last