Retrofitting Combined Space and Water Heating Systems: Laboratory Tests

Schoenbauer, B. ; Bohac, D. ; Huelman, P. ; Olson, R. ; Hewitt, M.

National Renewable Energy Laboratory (U.S.)

关键词: Buildings;    Residential Buildings;    Sealed Combustion;    Integrated System;    Laboratory Tests;   

DOI  :  10.2172/1056138
RP-ID  :  DOE/GO-102012-3694
RP-ID  :  AC36-08GO28308
RP-ID  :  1056138

美国|英语

来源: UNT Digital Library

【 摘 要 】

Better insulated and tighter homes can often use a single heating plant for both space and domestic water heating. These systems, called dual integrated appliances (DIA) or combination systems, can operate at high efficiency and eliminate combustion safety issues associated by using a condensing, sealed combustion heating plant. Funds were received to install 400 DIAs in Minnesota low-income homes. The NorthernSTAR DIA laboratory was created to identify proper system components, designs, operating parameters, and installation procedures to assure high efficiency of field installed systems. Tests verified that heating loads up to 57,000 Btu/hr can be achieved with acceptable return water temperatures and supply air temperatures.