There are several studies describing indoor air quality (IAQ) and tested air-leakage rates in multifamily buildings and the dwelling unit compartmentalization rates, but much of the work is in states located in colder climates and not directly transferable to California. Therefore, there is a...

The installation of all-electric HVAC systems, particularly in commercial or nonresidential buildings, will play a key role in meeting California’s carbon reduction goals. However, barriers persist for owners, mechanical designers, and contractors when pursuing all-electric HVAC solutions....

The Santa Rosa Case Study is one of eight buildings evaluated under a Code Readiness field monitoring research effort to better understand real-world performance of dedicated outdoor air systems (DOAS) in California. The Santa Rosa site was renovated in 2019 with a new HVAC system using a DOAS unit...

Provide a scalable testing platform to support the evaluation of existing and emerging standards of HPWH’s communication, Efficiencies and performance...

This project will be an updated and broad approach to look at specific measures for enhancing the energy efficiency (EE) of boilers in CA IOU territory. Rather than focusing on boiler retrofits, which are already part of the IOU portfolio, this study will investigate the potential for add on and...

This project is phase 1 of a multi-phase pilot project for gas-fired heat pump water heaters & combination systems. This phase 1 project will do all the groundwork for the future phase 2 and 3 projects to install gas-fired water heating/combination equipment at various sites around California. ...

The project will research emerging Ultra-low NOx (ULN) Burner technologies to provide actionable recommendations of technologies and gaps for further study by the GET program. This project will research and evaluate cost-effective, efficient, and ultra-low emission burner technologies including...

The 120V heat pump water heater (HPWH) has the potential to vastly increase customer adoption of heat pump water heaters by reducing installation costs. The 120V units plug directly into existing shared or dedicated circuits at the WH location, eliminating additional electrical wiring and/or...

Water heating represents significant energy use in residential applications. Therefore, energy efficient water heating is an essential component to achieve California’s saving goals. Although gas-fired heat pump water heaters (gHPWH) have been around for over three decades, this technology has only...

This Emerging Technology (ET) study project is proposed to research emerging gas-fired water heating technologies in order to provide actionable recommendations of technologies and gaps for further study by the Statewide Gas Emerging Technologies (GET) program. This project will cover both...