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Title: Optimizing Hydronic System Performance in Residential Applications, Ithaca, New York (Fact Sheet)

Condensing boiler technology has been around for many years and has proven to be a durable, reliable method of heating. Based on previous research efforts, however, it is apparent that these types of systems are not designed and installed to achieve maximum efficiency. For example, in order to protect their equipment in the field, manufacturers of low-mass condensing boilers typically recommend design strategies and components that ensure steady, high flow rates through the heat exchangers, such as primary-secondary piping, which ultimately result in decreased efficiency.
Publication Date:
OSTI Identifier:
1114043
Report Number(s):
DOE/GO-102013-4110
KNDJ-0-40342-00
DOE Contract Number:
AC36-08GO28308
Resource Type:
Technical Report
Resource Relation:
Related Information: Building America Case Study: Technology Solutions for New and Existing Homes, Building Technologies Office (BTO)
Research Org:
National Renewable Energy Laboratory (NREL), Golden, CO.
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy Building Technologies Office
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION RESIDENTIAL; RESIDENTIAL BUILDINGS; BUILDING AMERICA; CARB; CONDENSING BOILERS; HYDRONIC SYSTEMS; GAS-FIRED; BASEBOARD; EFFICIENCY; MODULATING; INDIRECT TANK; HOT WATER; BUFFER TANK; VARIABLE SPEED PUMPS; THERMOSTAT SETBACK; RECOVERY; RETURN TEMPERATURE; STANDBY LOSSES; HVAC; OPTIMIZATION; CYCLING; AFUE