Selecting the Best Home
1. Look for the ENERGY STAR® logo when purchasing a site-built home. Synonymous
with energy savings, ENERGY STAR is a national mark for products from appliances
to lighting and now includes new homes. ENERGY STAR builders are committed to
incorporating energy-efficient features from top to bottom in your home.
2. Ask for a Super Good Cents home when shopping for a manufactured home. Regional standards and inspections ensure that you’re getting savings throughout your new home.
Features to Discuss
with Your Builder or Salesperson
1. Select a high-efficiency furnace, water heater and A/C unit. High-efficiency
equipment buys you more heating and cooling per dollar. Be sure to discuss the
size of the equipment appropriate for your home and lifestyle. Equipment can
often be downsized when the home is built to energy-efficient standards.
2. Have your ductwork sealed and insulated. More than 80 percent of new homes have ducts that leak. When ducts are under pressure during heating and cooling, a 1-inch duct hole is equivalent to a hole in the wall that is 25 times as large, leading to significant energy losses.
3. Keep return ducts out of the attic. Hot Idaho summers can turn attics into virtual ovens, with temperatures exceeding 140 degrees on the hottest days. When return ducts are routed through these attics, instead of the walls or crawlspace, the air heats up and makes it much more difficult for the air conditioning unit to keep your home cool.
4. Pay attention to insulation levels in the underfloor, attic and walls. R-values are used to rate insulation (higher numbers provide more insulation). Code requires R19 in the floor of site-built homes, but R30 is recommended by ENERGY STAR. Super Good Cents homes have R33 in the floor. Code requires R38 in the attic, sufficient for a home, but going to R44 is cheap relative to the potential savings on your cooling bill. For wall insulation, ENERGY STAR homes include R19 or better while Super Good Cents homes have R21. In addition to the R-value, make sure the insulation is properly installed. Gaps or compression can reduce its effectiveness.
5. Select ENERGY STAR windows, now available at moderate prices. Don’t settle for a window with a U-value greater than .35, look for low-e coatings that keep rooms cooler in summer and warmer in winter and also specify windows with a lower Solar Heat Gain Coefficient (.50 or less).
6. Ask the lighting supplier for halogen or compact fluorescent substitutes for standard incandescent lighting. Also make sure all “can” lights are sealed to prevent the chimney effect where heat flows up to the roof.
7. Efficiency improvements such as these necessitate improved ventilation systems. These systems will improve comfort and air quality. Both ENERGY STAR and Super Good Cents homes include a whole house ventilation system.
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