Saving energy doesn’t have to be about deprivation. President Jimmy Carter famously suggested that Americans put on sweaters and turn down the thermostat to save energy. Not bad ideas for cutting utility bills, but plenty of new innovations in the intervening decades have also made energy efficiency more comfortable.
Insulation, radiant heat flooring and LED lights can all make your home more comfortable and inviting while using less energy.

Insulate and seal your house
Fiberglass insulation was certainly around in Carter’s time, but various alternative products and methods were not yet in widespread use. Wool, soy-based polyurethane, and recycled newspaper and cotton are all now used to keep out the winter cold and summer heat, and help regulate temperatures throughout the house. Insulating and sealing air gaps can keep cold drafts from bothering your dinner guests, and help you avoid overheating the living room just to keep the kids’ bedroom warm enough for sleeping.
Bestway Insulation of Broomfield specializes in re-insulation. The company typically lifts pieces of siding or drills small holes in brick walls, then compresses fiberglass insulation and blows in new cellulose insulation.
Debbie Weingardt of Bestway said her company first re-insulated with cellulose during the Carter administration to reduce noise levels inside homes near the airport. The homeowners soon realized unexpected savings on their energy bills.
They didn’t sacrifice comfort either. After an early spring re-insulation, Weingardt said the homeowner turned off the furnace on Wednesday, and the family didn’t notice until Sunday. Well-placed additional insulation can help boost comfort in rooms that seem to always remain cold in winter.
Gaps around recessed lights and vent pipes, for example, can be sealed with closed-cell polyurethane insulation. At an R-value of nearly 7 per square inch, it is perhaps the most efficient insulation product on the market. Closed-cell polyurethane is good for sealing gaps, but prohibitively expensive for most whole-house insulation jobs.
Get an energy audit that includes a blower door test and infrared imaging to find air leaks and poorly insulated areas in the home. Also consider caulking and weather-stripping around windows and doors, and installing energy-efficient windows.
Radiant floor heating
Once the house is well sealed and insulated, consider upgrading your heating system for more efficiency and comfort with radiant floor heating systems. The most efficient systems run hot water through pipes to directly warm floors and radiate heat into your house.
The concept has been around since ancient Rome, when baths were heated through underground chambers. The modern version took off in the early 1990s, which is when Dave Strong launched Radiant Floors, Inc., in Aurora. He co-owns the business with his son Derek.
Derek Strong said comfort is the top reason his customers seek out radiant flooring, but energy efficiency is a major side benefit. Radiant floor heating is comfortable because heat rises evenly from warm flooring. The system is silent and it keeps from drying out interior air. It also keeps household air cleaner by not blowing dust and other particles from ducts and throughout the house.
Derek said the upfront cost of a radiant flooring system with a 95 percent efficient boiler is about double the cost of a new forced-air heating system. However, the payback in utility bill savings for radiant heat systems can be as little as five years.
Radiant floor systems can be set to the same temperature throughout the house or designed with zoning valves to optimize comfort in each room. Heated electric coils or air tubes can also be used for radiant floor systems, but they are not as cost-effective or practical for most homes.
Radiant floor heating is most effective with ceramic tile and concrete subfloors, which conduct and retain heat well. Carpets, wood, linoleum and other floor coverings can reduce the efficiency of radiant heat flooring. Wood subfloors also are not ideal, but plenty of alternatives exist for such situations.
Light up comfort
Finally, with warm floors below, add warm, rich lighting above. The right lighting can make any room more comfortable and inviting. However, the most efficient lights are not always the most beautiful. One consistent complaint about compact fluorescent light bulbs is the harsh white light. Though CFL manufacturers have eliminated the flicker of old bulbs and improved the color, many still consider the bulbs less warm than traditional incandescent bulbs.
The efficient, comfortable alternative is light-emitting diode, or LED, lighting. The bulbs, which are really an array of tiny semiconductors, use 75 percent less energy than incandescent bulbs. They are rated to last at least 25,000 hours, and do not
contain mercury.
LEDs can produce all colors of the spectrum, are dimmable and provide focused, directional light. However, LEDs are still significantly more expensive than incandescent bulbs or CFLs.
Steve Graham is a freelance writer from Fort Collins











