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More duct sealing or new furnace?(Letter to the Editor)
I moved last year into an 18-year-old, two-story town house (2000 [ft.sup.2]). The original furnace is a 2.5-ton gas fired unit with an annual fuel utilization efficiency (AFUE) of 62%, rated two years ago. The house has an electric central air conditioner.
An energy audit done in June 2003 indicated air infiltration and return duct problems. I revamped the return system and created a second supply truck to feed the first floor. The house was air sealed in October 2003 and postsealing readings indicated a 30% improvement. At that time some duct sealing was done with tape and mastic on exposed parts, but no leakage readings were taken.
The attic currently has about 4-5 inches of loose fiberglass, so it's approximately R-11. I'm planning to upgrade in the next few weeks to R-38.The thermostat is set at 73[degrees]F for cooling and 69[degrees]F for heating. My gas usage increases to 7 [ft.sup.3] per day ($350 per month) during peak heating, and electricity ...
- Steel mill fires up new furnace -- new era.
- Newspaper article from: Pueblo Chieftain (Pueblo, Colorado) November 4, 2005 700+ words
...Steel announced plans to invest in a new furnace in 2002 as part of its ongoing plant...the mill said. The startup of the new furnace comes as the 720-worker Pueblo plant...of the Pueblo plant, described the new furnace as the top-of-the-line model...
- Duct sealing: A service that's too often ignored.
- Magazine article from: Air Conditioning, Heating & Refrigeration News NORLAND, JIM June 28, 1999 700+ words
...contractors. UTILITY INCENTIVES "Duct sealing is a chicken-and-egg situation...most utilities don't offer duct sealing programs because there aren...contractors." Still, better duct sealing seems to be beckoning some contractors...
- NEW FURNACE CAN HELP CUT HEATING COSTS HIGH-EFFICIENCY FURNACES CAN SAVE HOME...
- Newspaper article from: Post-Tribune (IN) November 24, 1996 700+ words
...impossible. And while the purchase of a new furnace may initially hurt the pocketbook...heating bills." When looking at a new furnace, home owners should check efficiency...efficiency is lost." Before selecting any new furnace, a lifetime cost analysis should be...
- Alcoa's Howmet Operation in Michigan Installs New Furnace Equipped with Latest...
- Press release article from: Business Wire May 10, 2006 700+ words
...facility in Whitehall, Michigan. The new furnace - equipped with the latest control technology...aerospace products has driven the need for a new furnace and full manufacturing capacity...Howmet Products and Services. "The new furnace is one part of our capacity enhancement...
- EFFICIENCY: Extending Duct Sealing Applications.
- Newspaper article from: Energy Optimization News August 1, 2003 700+ words
...injection system," is based on the aerosol duct-sealing device developed by Berkeley Lab researchers...acquired by Carrier Corp. Residential duct sealing that uses the Berkeley Lab technology...licensed to Aeroseal only for aerosol duct sealing. Licenses are still available for ...
- Carrier enters: Duct sealing business.(Brief Article)
- Magazine article from: Snips Bas, Ed April 1, 2002 700+ words
...Acquiring the Aeroseal diagnostic and duct sealing service is simply the next logical step...four days of training to complete the duct sealing diagnosis and sealing program. Aside...includes an actual home diagnostic and duct sealing, according to LaRose. "We strongly...
- NEW FURNACE FOR HAMMOND HEAT TREATMENT.
- Newspaper article from: The Birmingham Post (England) January 30, 1998 700+ words
...batch. Intended primarily to serve the fastener markets, the new furnace line will provide carburising and carbonisation capability...national customers. Speaking at the signing of the order for the new furnace, Hammond Heat Treatments Chief Executive, John Houseman...
- New furnace melts any metal.
- Newspaper article from: Science Letter February 3, 2003 700+ words
...Even the strongest metals melt under the extreme heat of a new furnace that will help scientists conduct higher quality research...stretch the limits of most crucibles when melted. With the new furnace, the lab can make easy work of melting all three. The furnace...
