High-efficiency commercial water heater development. Annual report Jan-Dec 83

Technical Report · Sun Jan 01 04:00:00 EST 1984

OSTI ID:7065334

Demetri, E P; Vasilakis, A D; Gerstmann, J

The development of a condensing water heater for commercial applications has been completed. The selected concept consists of a high-efficiency water heater connected by appropriate plumbing to a stratified-temperature storage tank. A number of pre-production prototypes have been fabricated and installed at nine representative commercial sites. Field tests were initiated in April 1983. These consist of a side-by-side comparison with the existing conventional water heater at each site. The test results obtained to date demonstrate standby loss rates less than one-fifth of conventional values and service efficiencies which average 33% higher than conventional system efficiencies. The comparative performance data obtained under actual usage conditions show that the condensing water heater would provide average annual cost savings of $950 per year and corresponding paybacks in the range of 0.6-1.5 years.

• Research Organization: Advanced Mechanical Technology, Inc., Newton, MA (USA)
• OSTI ID: 7065334
• Report Number(s): PB-84-174713
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
APPLIANCES
EFFICIENCY
ENERGY CONSUMPTION
FIELD TESTS
HEATERS
PERFORMANCE
TESTING
WATER HEATERS