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Showing 1 - 50 of 102 results:

Publication Date
·
Author(s)
Burch Jay,
Thornton Jeff
·
Organization(s)
National Renewable Energy Laboratory,
NREL,
Thermal Energy System Specialists,
TESS
Description
Document outlining the current and the proposed draws and estimates typical ratings changes from draw specification changes for typical systems in four cities.
Publication Date
·
Author(s)
Northwest Energy Efficiency Alliance
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Organization(s)
NEEA
Description
Specifications for water heating systems designed to advance higher performing electric and gas heat pump water heaters.
Publication Date
·
Author(s)
Dwiantoro Deny,
Walters R,
Ries R
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Organization(s)
Building Energy Efficient Homes for America,
BEEHA,
National Renewable Energy Laboratory,
NREL,
U.S. Department of Energy,
DOE
Description
Report describing methodology, analysis, and findings from a case study of a 110-unit retrofit of gas tankless water heaters in a hot/humid climate in Alachua County, Florida.
Publication Date
·
Author(s)
Lyons James,
Moore Mike,
Thompson Margo
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Organization(s)
Building America Partnership for Improved Residential Construction,
BA-PIRC,
Newport Ventures,
U.S. Department of Energy,
DOE
Description
Report summarizing commissioning, short-term testing, utility bill data analysis, and results of on-site monitoring of a deep energy retrofit.
Publication Date
·
Author(s)
Lstiburek Joseph W
·
Organization(s)
Building Science Corporation,
BSC
Description
Research study discussing how housewraps restrict or permit the passage of water molecules based on size, but cannot control the direction in which the water vapor molecules move.
Publication Date
·
Author(s)
U.S. Department of Energy
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Organization(s)
DOE
Description
Training module describing the operation, efficiency, consumer and seller benefits, and cost comparison of Heat Pump Water Heaters (HPWH) against conventional gas, oil, or electric water heaters.
Publication Date
·
Author(s)
Ecotope
·
Organization(s)
Energy Trust of Oregon
Description
Design guide providing solutions and tools for designing central heat pump water heater systems in multifamily and other commercial buildings.
Publication Date
·
Author(s)
Bohac Dave,
Schoenbauer Ben,
Huelman Patrick H
·
Organization(s)
University of Minnesota,
UMN,
NothernSTAR,
NSTAR,
U.S. Department of Energy,
DOE
Description
Report describing combined space- and water-heating (combi) systems using a high-efficiency direct-vent burner.
Publication Date
·
Author(s)
Fang Xia,
Maguire Jeff,
Wilson Eric
·
Organization(s)
National Renewable Energy Laboratory,
NREL,
U.S. Department of Energy,
DOE
Description
Research report providing a comparison of the most common residential water heating technologies to determine energy-efficient and cost-effective water heating technologies are when subjected to a variety of typical operating conditions.
Publication Date
·
Author(s)
Maguire Jeff,
et al.
·
Organization(s)
Mountain Energy Partnership,
National Renewable Energy Laboratory,
NREL
Description
Report about a hybrid condensing water heater (thermal efficiency = 0.973, energy factor = 0.95) installed in an occupied home in Sacramento, California, and monitored for one year to determine the actual in situ efficiency.
Publication Date
·
Author(s)
Aldrich Robb,
Vijayakumar Gayathri
·
Organization(s)
Consortium for Advanced Residential Buildings,
CARB,
Steven Winter Associates,
SWA
Description
Report describing the monitored long-term performance of two solar domestic water heating systems in northern climates.
Publication Date
·
Author(s)
Winkler Jon,
Christensen Dane,
Fang Xia
·
Organization(s)
National Renewable Energy Laboratory,
NREL,
U.S. Department of Energy,
DOE
Description
Research study that utilizes EnergyPlus equipped with the moisture capacitance model to analyze the indoor relative humidity in three home types.
Publication Date
·
Author(s)
Hoeschele Marc,
Haile James,
Grant Peter
·
Organization(s)
Pacific Gas and Electric Company,
PG&E,
Energy Transition Coordinating Council,
ETCC
Description
Report describing the performance, cost, and carbon impacts of unitary heat pump water heaters with load-shifting controls in a shared configuration for a multi-family project, highlighting significant savings in energy usage, CO2 emissions, and utility costs.
Publication Date
·
Author(s)
Mosiman Garrett,
Wagner Terence L,
Schirber Tom
·
Organization(s)
NorthernSTAR,
University of Minnesota,
U.S. Department of Labor,
DOE
Description
Research study searching for combinations of existing technologies that could enable a minimally invasive, cost-competitive, easily deployable method of upgrading soil-side foundation insulation in existing buildings.
Publication Date
·
Author(s)
Hoeschele Marc,
Weitzel Elizabeth
·
Organization(s)
Alliance for Residential Building Innovation,
ARBI,
Davis Energy Group,
U.S. Department of Energy,
DOE
Description
The main objective of this expert meeting was to bring together a group of experts intimately involved with issues related to assessing the performance of residential high efficiency water heating systems.
Publication Date
·
Author(s)
Parker Danny S,
et al.
·
Organization(s)
Building America Partnership for Improved Residential Construction,
BA-PIRC,
National Renewable Energy Laboratory,
NREL,
Florida Solar Energy Center,
FSEC
Description
Research report assessing the moisture and cooling load impacts of airtightness and mechanical ventilation in homes in hot-humid climates.
Publication Date
·
Author(s)
Aldrich Robb
·
Organization(s)
Consortium for Advanced Residential Buildings,
CARB,
Steven Winter Associates,
SWA
Description
Brochure on specifications for solar thermal systems.
Publication Date
·
Author(s)
Building Science Corporation
·
Organization(s)
BSC
Description
Information sheet about groundwater control.
Publication Date
·
Author(s)
Ecotope,
Northwest Energy Efficiency Alliance
·
Organization(s)
Ecotope,
NEEA
Description
Report describing the significant potential for energy use reductions through heat pump water heaters, which have been a crucial part of Northwest power plans for decades and have recently achieved substantial savings with new integrated models and climate specifications.
Publication Date
·
Author(s)
Wiehagen Joseph,
Kochkin Vladimir
·
Organization(s)
NAHB Research Center,
National Renewable Energy Laboratory,
NREL
Description
Research study presenting results of an existing home monitoring project designed to measure wall cavity moisture characteristics.
Publication Date
·
Author(s)
Hoeschele Marc,
Weitzel Elizabeth
·
Organization(s)
Alliance for Residential Building Innovation,
ARBI,
National Renewable Energy Laboratory,
NREL,
Davis Energy Group
Description
Report on a project that enhanced the HWSIM distribution system model to more accurately model pipe heat transfer.
Publication Date
·
Author(s)
Widder Sarah H,
et al.
·
Organization(s)
Northwest Energy Efficiency Alliance,
NEEA,
Pacific Northwest National Laboratory,
PNNL
Description
Report describing the objective evaluation of space conditioning interactions between heat pump water heaters and home heating systems during winter 2016-2017, revealing a smaller than anticipated impact on space conditioning loads.
Publication Date
·
Author(s)
Kosar Douglas
·
Organization(s)
Building America Partnership for Improved Residential Construction,
BA-PIRC,
Gas Technology Institute,
GTI Energy,
U.S. Department of Energy,
DOE
Description
Report targeting the growing number of homes utilizing deep retrofit measures and new construction practices to realize sufficiently lower infiltration levels that require mechanical ventilation as prescribed by ASHRAE Standard 62.2.
Publication Date
·
Author(s)
Kingston T,
Scott S
·
Organization(s)
Building America Partnership for Improved Residential Construction,
BA-PIRC,
Gas Technology Institute,
GTI Energy
Description
Report summarizing results of testing emerging combo water heating technologies under controlled laboratory operations, that differentiate the performance of the various packaged equipment configurations being offered.
Publication Date
·
Author(s)
Winkler Jon,
Christensen Dane,
Tomerlin Jeff
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Organization(s)
National Renewable Energy Laboratory,
NREL
Description
Report documenting the measured performance of six residential ENERGY STAR vapor compression dehumidifiers.
Publication Date
·
Author(s)
Hudon Kate,
et al.
·
Organization(s)
National Renewable Energy Laboratory,
NREL
Description
Report identifying the target market for solar water heaters and potential pathways and cost/performance targets that must be met for these systems to realize large energy savings.
Publication Date
·
Author(s)
Aldrich Robb,
Mantha Pallavi,
Puttagunta Srikanth
·
Organization(s)
Consortium for Advanced Residential Buildings,
CARB,
National Renewable Energy Laboratory,
NREL,
Steven Winter Associates,
SWA
Description
Document describing good practices for insulating basements in new and existing homes.