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Title: Building America Case Study: Assessment of a Hybrid Retrofit Gas Water Heater

Abstract

This project completed a modeling evaluation of a hybrid gas water heater that combines a reduced capacity tankless unit with a downsized storage tank. This product would meet a significant market need by providing a higher efficiency gas water heater solution for retrofit applications while maintaining compatibility with the half-inch gas lines and standard B vents found in most homes. The TRNSYS simulation tool was used to model a base case 0.60 EF atmospheric gas storage water, a 0.82 EF non-condensing gas tankless water heater, an existing (high capacity) hybrid unit on the market, and an alternative hybrid unit with lower storage volume and reduced gas input requirements.

Authors:
Publication Date:
Research Org.:
Alliance for Residential Building Innovation (ARBI)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Building Technologies Office (EE-5B) (Building America)
OSTI Identifier:
1366344
Report Number(s):
DOE/GO-102017-4708
7677
Country of Publication:
United States
Language:
English
Subject:
residential; residential buildings; Building America; ARBI; retrofit, water heater; water heating; TRNSYS model; energy savings

Citation Formats

M. Hoeschele, E. Weitzel, C. Backman. Building America Case Study: Assessment of a Hybrid Retrofit Gas Water Heater. United States: N. p., 2017. Web.
M. Hoeschele, E. Weitzel, C. Backman. Building America Case Study: Assessment of a Hybrid Retrofit Gas Water Heater. United States.
M. Hoeschele, E. Weitzel, C. Backman. Thu . "Building America Case Study: Assessment of a Hybrid Retrofit Gas Water Heater". United States. doi:. https://www.osti.gov/servlets/purl/1366344.
@article{osti_1366344,
title = {Building America Case Study: Assessment of a Hybrid Retrofit Gas Water Heater},
author = {M. Hoeschele, E. Weitzel, C. Backman},
abstractNote = {This project completed a modeling evaluation of a hybrid gas water heater that combines a reduced capacity tankless unit with a downsized storage tank. This product would meet a significant market need by providing a higher efficiency gas water heater solution for retrofit applications while maintaining compatibility with the half-inch gas lines and standard B vents found in most homes. The TRNSYS simulation tool was used to model a base case 0.60 EF atmospheric gas storage water, a 0.82 EF non-condensing gas tankless water heater, an existing (high capacity) hybrid unit on the market, and an alternative hybrid unit with lower storage volume and reduced gas input requirements.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jun 01 00:00:00 EDT 2017},
month = {Thu Jun 01 00:00:00 EDT 2017}
}