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Home Energy Magazine Online July/August 1998
CONSERVATION CLIPS
Filling In the Gap. Hoping to learn more
about potential health hazards related to installing cellulose insulation,
the National Institute of Occupational Safety and Health (NIOSH) is conducting
a one-year study. The agency will recruit 15 to 20 insulation contractor
guinea pigs from various parts of the United States and assess the installers'
exposure. Cellulose manufacturers and installers should benefit greatly
from the study, as there are no specific standards for exposure to cellulose
and little research in this area has been done. Cellulose contractors interested
in participating in the study can contact Robert McCleery, NIOSH, 4676
Columbia Parkway, R-11, Cincinnati, OH 45226. Tel:(513)841-4112; E-mail:
rtm2@cdc.gov. Energy Design Update,
March 1998, Cutter Information Corporation, 37 Broadway, Suite 1, Arlington,
MA 02174-5552. Tel: (800) 964-5118; Fax:(800)888-1816; E-mail: clicata@cutter.com;
Web site: www.cutter.com/energy/.
An Efficient Move? Does the advent of
a smaller federal government and utility deregulation spell doom for utility
energy efficiency programs? At a minimum, the trend is toward lower funding
for these programs across the country; in the Northwest, the trend continues.
The federal power marketing agency for the area is the Bonneville Power
Administration. It sells roughly half the electricity in the region and
controls about 85% of the power transmission system. The agency is looking
to cut costs for its fiscal years 2002-2006, and high on its cost-cutting
list are energy conservation programs. In order to compete more effectively
with new competitors arising from deregulation, Bonneville is hoping either
to have energy efficiency products and services pay for themselves, to
have the states take over the programs, or to have the states require all
power providers to offer energy-efficient programs. Bonneville is attempting
to honor its previous commitments to energy conservation, but its core
business strategy will no longer include development of new renewable resources
or additional related research. The recommendations are expected to be
accepted or rejected by July. Bulletin, April 1998. Northwest Power
Planning Council, 851 SW Sixth Ave., Suite 1100, Portland, OR 97204-1348.
Tel:(800)222-3355; Fax:(503)795-3370; Web site: www.nwppc.org/cost_rev.htm.
The Spin on Energy Guide Labels. Sophisticated
new dishwashers may use more energy than what the Energy Guide stickers
say they do, according to Consumer Reports. The new dishwashers
claim to save energy by using water more judiciously. But the federal government's
labels, which supposedly show a typical annual energy bill, may underestimate
the real cost of running the machines because the machines are "smart"
and can tell just how dirty those dishes really are. Tests for the EnergyGuide
call for dishwashers to be loaded with clean dishes, but smart models have
a dirt sensor that adjusts the water level accordingly. With dirty dishes,
the washers will use more hot water. More hot water use means more energy
use, which in turn may increase the machine's true running cost by $20
or more per year. A spokesperson for the Department of Energy said that
work is under way to solve the problem. Consumer Reports, March
1998. Consumers Union, 101 Truman Ave., Yonkers, NY 10703-1057. Tel:(914)378-2000;
Web site: www.ConsumerReports.org.
No More Tin Shacks. There are many kinds
of outdoor water heaters. One is an indoor gas-fired tank people put outdoors.
Another is a gas-fired heat exchanger that heats water and pumps it into
an indoor storage tank (see "Take It Outside:
Water Heaters Get Fired Up," HE Nov/Dec '96, p. 9). And, of
course, there is rooftop solar thermal. Now, American Water Heater has
designed an outdoor gas water heater. The 50-gallon Weather-Pro does not
need a separate enclosure, and an internally balanced flue eliminates the
need for a chimney. The unit is touted as saving valuable living space
and easing installation by making it unnecessary to cut through roofs and
walls to install vent pipes and gas lines. It has an input rate of 50,000
Btu per hour (compared to 15,000 Btu per hour for standard residential
electric water heaters) and has been certified by the American Gas Association
after more than two years of field testing. However, space considerations
would have to be the main reason to buy a Weather-Pro: its efficiency is
only 55%. From a Gas Research Institute news release. Contact Mike Szeremet,
GRI, 8600 W Bryn Mawr Ave., Chicago, IL 60631-3562. Tel:(773)399-8124;
E-mail: mszereme@gri.org.
A Not-So Baffling Study. There has been
some controversy over whether ridge vents should have baffles on the outside
or on the inside, or whether baffles matter at all. The big question is
whether any of them create the negative pressure necessary to draw excess
heat and moisture out of an attic. Air Vent Incorporated (a maker of externally
baffled ridge vents) contracted with the University of Illinois to test
five ridge vents. They tested molded, rolled, and corrugated vents to ASHRAE
standards. The results--verified by ASHRAE--showed that all externally
baffled systems produced the requisite negative air pressure. The systems
that had internal baffles or no baffles at all--the rolled and corrugated
styles--failed to create a negative air pressure in the test attic. In
fact, they created a slight positive pressure, meaning air was being blown
into the attic. Ridge Vent Airflow Performance Tests Conducted at the
University of Illinois is free from Air Vent Incorporated, 3000 W Commerce
St., Dallas TX, 75212. Tel:(800)247-8368. Web site: www.airvent.com.
Certified Window Installers. Last issue,
we reported on Canada's new certification program for window installers.
Now, a similar program is being developed inthe United States. The Building
Environment and Thermal Envelope Council (BETEC) and the American Architectural
Manufacturers Association (AAMA) have funding and plans to have the program
operational within two years. Update, Winter 1998. BETEC, 1090 Vermont
Ave. NW, 7th Fl, Washington, DC 20005-4905. Tel:(202)289-7800; Fax:(202)289-1092;
E-mail: betec@nibs.org; Web site: www.nibs.org.
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