by Shana Fong on July 16, 2010
Is your thermostat accurate? If not, chances are that the temperature sensor is being affected by cold air coming through the opening where the thermostat is mounted.
Keeping control of your thermostat is one of the simplest ways you can save a great deal of energy – and money – all year round.
Energy Facts
- During the winter, you can save as much as 2%-3% of the energy your furnace uses simply by lowering your thermostat 1°F (if it’s set between 65°F and 72°F).
- In the summer, the process is reversed. You save 3%-5% of the energy used by your air conditioner for every degree you raise the thermostat setting (if it’s set between 70°F and 82°F).
- Do you chronically forget to turn down the heat? There are low-priced, easy-to-install thermostats that adjust the temperature automatically. The simplest have built-in clocks; the more advanced models are computerized. An advanced model will, for example, turn your furnace on 30 minutes before you wake up, turn it off when you leave for work, turn it on just before you return home, and then set it for 55°F when you go to bed. Some also have a “minimum energy use” setting that monitors temperatures when you go on vacation.
Simple Ways to Save Energy
- Keep the thermostat under control. Recommended winter settings for heaters: 68°F in the daytime, 55°F at night. In the summer, turn the air conditioner’s thermostat to 78°F.
- Check the temperature. Using an accurate thermometer, make sure that the temperature near your thermostat is representative of the rest of the house. If it’s located in a drafty or sunny spot, you may be getting false readings and wasting energy.
- Plug the hole in the wall behind the thermostat with a piece of fiberglass insulation.
Excerpted from 30 Simple Energy Things You Can Do To Save The Earth, by The EarthWorks Group.
by Adam Winter on July 8, 2010
President Obama has told us that insulation is sexy—but what about water heaters? If you’d like to add an efficient, hydronics-ready water heater to the mix of products your shop sells and supports, check out this hot performer:
The Vertex 100 from Tennessee-based A.O. Smith Water Products
http://www.hotwater.com/products/residential/rg-vertex100.html
- 96% thermal efficiency
- True sealed combustion for greater efficiency and safety
- Accurate, easy-to-use digital controls
- Higher output for combined hydronics
- Side taps for combined hydronics
- Significantly quieter than competing 90% efficient water heaters
- Significantly less expensive than competing 90%+ water heaters with stainless steel tanks
- Provides a nice mix of 50 gallons of hot water storage and 100,000 BTU/h of burner power, thereby reducing standby losses incurred with very large tanks and natural draft flues
- Accommodates high hot water demands without requiring a high-capacity gas line to supply 250,000 BTU/h as is typical of tankless water heaters
Our take: This is a great product for the price point, efficiency level and footprint.
Note: Recurve does not endorse this or any other product. We encourage qualified Home Performance contractors to gain hands-on experience with products profiled in this newsletter before making their own assessments.
by Shana Fong on February 3, 2010
The City of Berkeley is once again hosting the residential natural gas efficiency contest for Berkeley residents (renters and homeowners). All residents who receive a natural gas bill from PG&E, either directly or through their landlord, are eligible to enter and win. Cooperatives are eligible this year as well.
The contest period covers natural gas use for the month of February, so start conserving now! Last year’s prizes included Whole-House Performance Testing, $100 in BART tickets, Farmer’s Market Gift Certificates and gift baskets, and Berkeley Repertory Theater tickets.
Categories include: Lowest Natural Gas Use Overall, Lowest Natural Gas use Per Person, Greatest Percentage of Natural Gas Reduction, and Most Creative Effective Strategy for reducing natural gas consumption.
Contestants may also be eligible for up to a 20% bill credit from PG&E through their Winter Gas Savings program.
Download a contest application here: http://www.ci.berkeley.ca.us/ContentDisplay.aspx?id=34650
For additional information, please contact the Contest manager at Energy@CityofBerkeley.info or call 510-981-7435. PG&E is a co-sponsor of this contest.
by Shana Fong on January 20, 2010
Here’s a helpful checklist of things to do around the house, according to season:
JANUARY/FEBRUARY
- Clean or replace furnace filter
- Check/clean heat recovery ventilator; wash or replace filter
- Clean humidifier
- Clean range hood filter
- Check basement floor drain
MARCH/APRIL
- Clean or replace furnace filter
- Check/clean heat recovery ventilator; wash or replace filter
- Clean humidifier
- Check sump pump
- Check gutters and downspouts and clean if needed
- Inspect air conditioning; service as needed (usually every two or three years)
- Inspect basement or crawl space for signs of seepage/leakage
- Ensure that ground slopes away from foundation wall
MAY/JUNE
- Clean windows, screens and hardware; install screens
- Check that air intake and exhausts are clear of debris, nests, etc.
- Clean range hood filter
- Undertake spring landscape maintenance; fertilize young trees
JULY/AUGUST
- Air out damp basements on dry days or use dehumidifier
- For central air conditioning, clean filter in air handling unit
- Check exterior finishes
- Check exterior wood for deterioration
- Check caulking and weatherstripping, including around entry door from garage and house
- Check basement floor drain trap; replenish if needed
- Have furnace/heating system serviced (every two years for an electric furnace)
SEPTEMBER/OCTOBER
- Check fireplace and chimney; service or clean if needed
- Clean range hood filter
- Clean leaves out of eavestroughs
- Check roofing and flashing for signs of wear or damage
- Close windows, skylights
- Winterize landscaping
NOVEMBER/DECEMBER
- Clean or replace furnace filter
- Check or clean heat recovery ventilator; wash or replace filter
- Clean humidifier
- Check exhaust fans
by Shana Fong on November 24, 2009
1. Test your home’s energy IQ: Get an energy audit to determine the best roadmap to a healthy, comfortable and energy efficient home.
2. Unplug energy vampires: In the average home, 40% of all electricity is used to power home appliances while they’re turned off.
3. Insulate yourself against rising energy costs: Well-installed green insulation is the biggest bang-for-your-buck improvement you can make.
4. Get your ducts in order: In California, duct leakage accounts for a loss of 30% of heating and cooling energy.
5. Reduce, then produce: Before installing an expensive solar array, make your home a lean, efficient machine — then pay a lot less for your sun collectors.