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

Case Study

Case study describing the retrofit of a hybrid gas water heater that combines a reduced capacity tankless unit with a downsized storage tank.

Combustion safety testing using a smoke pen

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Building America Case Study: Simple Retrofit High-Efficiency Natural Gas Water Heater Field Test, Minneapolis, Minnesota

Case Study

Case study describing the installation four high-efficiency natural gas water heaters n single-family homes and their savings potential, installed efficiencies, and abilities to meet household demands.

Heat Pump Water Heaters in Small Spaces Lab Testing: “The Amazing Shrinking Room”

Reference

Report describing a laboratory assessment that provides insights into space requirements and venting strategies for heat pump water heaters (HPWH) to enhance retrofit installations and provide actionable guidance for manufacturers, designers, engineers, installers, and owners.

Laboratory Testing of Heat Pump Water Heater Performance: Impact of Airflow and Space Configurations

Reference

Report describing research conducted to support California’s Title 24, Part 6 Building Energy Efficiency Standards by analyzing the impact of installation location and ventilation on heat pump water heater (HPWH) performance, emphasizing the need for proper installation to maximize efficiency...