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Reducing Swimming Pool Heat Loss

June 24, 2011

What are the primary energy losses from swimming pools? Do you have any recommendations for eliminating those losses?

Content type: Ask E Source | Document ID: TAS-AskES-32 | Author: Leland Keller

Low-Flow Prerinse Spray Valves

November 30, 2005 | Updated: January 20, 2011

What is a low-flow prerinse spray valve, and what kind of savings does it achieve?

Content type: Ask E Source | Document ID: TAS-TN-11-05c | Author: Peter Criscione

Saving Energy in Commercial Dishwashers

June 18, 2003 | Updated: January 20, 2011

Do you know of any energy-saving opportunities for commercial dishwashers—specifically for hotels?

Content type: Ask E Source | Document ID: TAS-TN-6-03c | Author: Peter Criscione

Water Heater Lifetime

March 3, 2004 | Updated: January 20, 2011

How does the lifetime of conventional water heaters compare with that of tankless water heaters for residential use?

Content type: Ask E Source | Document ID: TAS-TN-2-04c | Author: Peter Criscione

Energy Factors for Demand Water Heaters

July 3, 2002 | Updated: September 30, 2010

Where can I find energy factors (EFs) for demand water heaters (also known as instantaneous or tankless water heaters)? The Gas Appliance Manufacturers Association provides EFs for virtually all residential tank water heaters on the market, but not for demand heaters.

Content type: Ask E Source | Document ID: TAS-TN-7-02d | Author: Peter Criscione

Residential Tankless Water Heater Applications

November 20, 2003 | Updated: September 15, 2010

What residential applications are best suited for electric tankless water heaters?

Content type: Ask E Source | Document ID: TAS-TN-10-03c | Author: Peter Criscione

Watts Up at the Water Cooler?

March 1, 2010

How much energy do water fountains and water coolers use, and how can it be reduced?

Content type: Ask E Source | Document ID: TAS-TN-3-10c | Author: Kitty Stevenson

Pool Pump Savings Opportunities

November 5, 2009

What are the opportunities for saving energy in pool pumps?

Content type: Ask E Source | Document ID: TAS-AskES-5 | Author: Dan Greenberg

Drainwater Heat Recovery Device Savings

October 1, 2009

How much energy do drainwater heat recovery devices save?

Content type: Ask E Source | Document ID: TAS-TN-10-09d | Author: Peter Criscione

Solar Thermal Programs Are Hot!

July 28, 2009

Who’s getting into solar thermal energy, and why? What incentives are helping residential customers invest in solar hot water? What are the elements of successful utility programs for solar hot water?

Content type: Ask E Source | Document ID: EDRP-AskES-13 | Author: Dulcey Simpkins

Savings from Removing Sediment Buildup in Water Heaters

June 25, 2009

How much energy can be saved by removing sediment buildup in tank-type water heaters?

Content type: Ask E Source | Document ID: TAS-TN-7-09c | Author: John Sustar

Heat Pump Water Heaters in Cold Climates

June 1, 2009

Is it cost-effective to install residential heat pump water heaters (HPWHs) in heating-dominated climates, where the HPWH is withdrawing heat from the living space?

Content type: Ask E Source | Document ID: TAS-TN-6-09e | Author: John Sustar

Shutting Off Water Heaters and Legionnaires’ Disease

April 22, 2009

Are there health concerns associated with turning off domestic hot water tanks in buildings that are periodically unoccupied, such as on weekends and, in the case of schools, during vacations?

Content type: Ask E Source | Document ID: TAS-TN-5-09d | Author: Mary Horsey

Status of Heat Pump Water Heaters

February 28, 2007

What's the status of heat pump water heater (HPWH) products here and abroad? Are any utilities in the U.S. still operating successful HPWH programs?

Content type: Ask E Source | Document ID: TAS-TN-2-07a | Author: Peter Criscione