Library

Report providing step-by-step instructions for heating contractors and hydronic designers for selecting the proper control settings to maximize system performance and improve response time when using a thermostat setback.

Report on two approaches to retrofitting existing double-stud walls.

Report about evaporative condensers, to provide information on a cost-effective solution for energy and demand savings in homes with cooling loads.

Document covering installation of high efficiency gas furnaces, including when to install a high efficiency gas furnace as a retrofit measure, how to identify and address risks, and steps to follow for the selection and installation process.

Report providing guidance on how to implement a compact duct system inside a plenum truss bulkhead of a one-story, slab-on-grade home.

Report describing the use of passive vents as a source of outdoor air in multifamily buildings.

Document covering the technical aspects of buried and insulated ducts (BEDs), as well as the advantages, disadvantages, and risks of BEDs compared to alternative strategies.

Report describing the sealing and insulating of HVAC duct systems in existing homes.

This document addresses adding—or improving—mechanical ventilation systems to existing homes. The purpose of ventilation is to remove contaminants from homes either directly or by dilution. This report discusses where, when, and how much ventilation is appropriate in a home, including some...

Document intending to put some context and structure around the process of balancing and tuning one-pipe steam systems to help practitioners begin to garner the potential in energy savings that this measure presents.

Document illustrating guidelines for efficient installation of interior duct systems in new housing.

Guide describing proper application, design, and installation of mechanical ventilation cooling systems for homes located in hot-dry and cold-dry climates, as well as a means of understanding the benefits, costs, and tradeoffs of these systems.

Report describing the most cost-effective ventilation and indoor air quality solutions for multifamily homes that meet ASHRAE 62.2-2016.

Research study analyzing measured energy savings from a moderate retrofit by comparing post-retrofit performance with measured pre-retrofit monitored data.

Research study outlining results of monitoring a low temperature heat pump.

Web resource that lays out the pre-work considerations, methods and finishes for installing mechanical insulation.

Standard that prescribes a testing method to determine the efficiency of space heating and/or cooling thermal distribution systems under seasonal and design conditions. This version of the standard was published in the year 2014, and is available for preview and purchase at the reference link. The...

Standard establishing a test procedure for evaluating the performance of air-cleaning devices as a function of particle size. This is the current version of the standard, which was published in the year 2017, and is available for preview and purchase at the reference link. The ASHRAE bookstore also...

FEMA Mitigation Assessment Team Report describing damages from Hurricane Michael in Florida in Oct. 2018 and recommendations for future hurricane preparedness.

Book with indepth information about hydronic systems for residential and commercial buildings.

Conference paper making the case that moving ducts to conditioned space saves energy, is practical for production builders (when accompanied by careful pre-planning), and creates significant andmarketable energy savings for homebuyers.

This report is designed to meet ASHRAE 62.2-2010/2013 and ANSI/ACCA’s 5 QI-2015 protocol, thereby improving the performance of HVAC equipment in new homes when compared to homes built to minimum code.

Database compiling extended capacity data for numerous cold climate heat pump manufacturers and models.

Report discussing the benefits of modern evaporative cooling systems for use in hot dry climate zones.

Document providing supplemental information for code enforcement professionals about headers in nonbearing walls.

Document on the development of two simple in-home efficiency test methods that can be used by technicians, researchers, or interested homeowners to verify the correct operation and energy efficiency of a homes air conditioning and heating equipment.

Document about development of recommendations to help residential HVAC designers select optimal supply inlet size and system operating conditions to maintain good thermal comfort in low heating and cooling load homes.

Research study using modeling to determine optimal combination(s) of components/pumps, high efficiency heat sources, plumbing configurations and controls that result in the highest overall efficiency for a hydronic system.

Report providing information to researchers, utility program managers, and building owners interested in controlling heating energy waste and improving resident comfort.

Article investigating how a linear input/output relationship can be used as a simple model of the performance of a combination hydronic heating system over heating only, DHW only, and combined loads.

Information sheet providing guidance about the placement of ventilation approaches.

Article describing how to properly manage condensing HVAC equipment.

Guide describing flood protection measures for utility systems, including mechanical, electrical, plumbing, and fuel.

Document with important building science considerations, designed for members of the residential construction and remodeling industries, as well as owners and managers who work in affordable housing.

Information sheet designed for the residential construction and remodeling industries, as well as owners and managers working in affordable housing. This sheet presents building guidance for both new construction and rehabilitation, as well as practices that can be used by property maintenance...

Research project aimed to verify whether homes in the New Jersey HPwES program achieved 30% source energy savings, and if so, what measures were implemented to achieve them.

Report including an overview of the buried duct research and information the retrofit methodology used to install and test the three existing duct systems, including short- and long-term data collection.

Fact sheet describing best practices in installing leak-free refrigerant systems, including specifics on creating flare joints and brazed joints, pressure testing, vacuum testing, and charging the system with refrigerant.

Information sheet describing refrigerant line installation and system startup procedures.

Technical report describing the research and development of the Ventilation-Integrated Comfort System (VICS) which is a specifically designed, energy-efficient solution that seamlessly integrates with low-capacity, ducted heating, and cooling systems, offering controllable, balanced energy recovery...

Document presenting results from testing prototype HVAC duct system designs that would locate the entire length of duct work within the air and thermal barriers of the building envelope. These include one that incorporated a high-side supply register, one that utilized a single soffit located within...

Report providing information on mechanical air-cleaning devices for ventilation when conventional methods are not warranted.

Webpage describing a DOE Cold Climate Heat Pump Challenge. The challenge engages industry partners and focuses around the Cold Climate Heat Pumps, a more environmental and efficient heating alternative to traditional heating.

Research study identifying the best performing, most energy-efficient and cost- effective techniques to provide controlled mechanical ventilation and humidity control in hot- humid climates with thermally efficient building envelopes.

Presentation providing information about correctly installing ductwork in new and existing homes.

Report proposes high performance duct measures for inclusion in California Title 24 building energy efficiency standards for 2016.

IECC code note explaining new fan efficacy requirements, along with how to determine which fans are affected by the new fan requirements.

Report aimed at gaining a better understanding about benefits, challenges and technologies associated with natural gas feedback systems.

U.S. DOE report summarizing findings from literature and research relevant to HVAC installation practices.

Report evaluating mechanical AC precooling strategies in homes as a method for improving the load factor by shifting cooling operation from on-peak to off-peak hours.