Building America Case Study: Advanced Controls Improve Performance of Combination Space and Water Heating Systems, Minneapolis, Minnesota

Stacey Rothgeb; T. Schirber; B. Schoenbauer; D. Bohac; P. Huelman

Building America Case Study: Advanced Controls Improve Performance of Combination Space and Water Heating Systems, Minneapolis, Minnesota

Stacey Rothgeb, T. Schirber, B. Schoenbauer, D. Bohac, P. Huelman

Building Technologies and Science Center

University of Minnesota

Research output: NREL › Fact Sheet

Abstract

The combined space and water heating systems (combi) uses a high efficiency direct vent burner that eliminates safety issues associated with natural draft appliances. Past research with these systems shows that utilizing condensing water heaters or boilers with hydronic air handlers can provide both space and water heating with efficiencies of 90% or greater. Improved controls have the potential to reduce some of this complexity and boost the measured performance.

Original language	American English
Number of pages	4
State	Published - 2015

Bibliographical note

Work performed by NorthernSTAR Building America Partnership, St. Paul, Minnesota

NREL Publication Number

NREL/FS-5500-63460

Other Report Number

DOE/GO-102015-4601

Keywords

Building America
condensing
HVAC
low load homes
NorthernSTAR
residential
residential buildings
space heating
water heating

Access to Document

https://www.nrel.gov/docs/fy15osti/63460.pdf

Cite this

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AU - Bohac, D.

AU - Huelman, P.

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PY - 2015

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N2 - The combined space and water heating systems (combi) uses a high efficiency direct vent burner that eliminates safety issues associated with natural draft appliances. Past research with these systems shows that utilizing condensing water heaters or boilers with hydronic air handlers can provide both space and water heating with efficiencies of 90% or greater. Improved controls have the potential to reduce some of this complexity and boost the measured performance.

AB - The combined space and water heating systems (combi) uses a high efficiency direct vent burner that eliminates safety issues associated with natural draft appliances. Past research with these systems shows that utilizing condensing water heaters or boilers with hydronic air handlers can provide both space and water heating with efficiencies of 90% or greater. Improved controls have the potential to reduce some of this complexity and boost the measured performance.

KW - Building America

KW - condensing

KW - HVAC

KW - low load homes

KW - NorthernSTAR

KW - residential

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M3 - Fact Sheet

ER -

Building America Case Study: Advanced Controls Improve Performance of Combination Space and Water Heating Systems, Minneapolis, Minnesota

Abstract

Bibliographical note

NREL Publication Number

Other Report Number

Keywords

Access to Document

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Cite this