Library

2012 edition of code establishing a baseline for the design and installation of fuel gas systems and gas fired appliances through performance requirements.

2015 edition of code establishing minimum regulations for mechanical systems, including heating, cooling, ventilation, exhaust, ducts, fireplaces, combustion and hydronic systems, using prescriptive and performance-related provisions.

Case study providing homeowners guidance on installing window air conditioners.

The manual covers residential zoning issues - multiple, single-zone, and central multi-zone systems - and includes advice on working with homeowners to adapt the heating or cooling system design to meet modern home design features.

Standard for use and reference by designers, architects, engineers, contractors, installers and users for evaluating, selecting, specifying and properly installing flexible duct in heating and air conditioning systems.

Report analyzing design heating load sizing methods for superinsulated homes in cold climates and comparing them to the actual energy usage to determine if the building load calculation methodology should be changed for calculating the design heating load of these homes.

Report summarizing commissioning, short-term testing, utility bill data analysis, and results of on-site monitoring of a deep energy retrofit.

This directory contains the I=B=R Ratings for cast-iron, steel, aluminum and copper boilers, baseboard and finned tube radiation, indirect-fired water heaters, effective as of the date of this publication.

Report describing strategies to improve the aging steam heating systems in New York City to improve energy efficiency, reduce oil and gas usage, and cut maintenance costs.

Report summarizing one year of monitoring and analysis of the effectiveness of a space conditioning system at maintaining temperature and relative humidity levels in a test home, as well as room-to-room differences and the actual measured energy consumption by the space conditioning system.

Report on experiments comparing the cooling and heating seasonal and peak demand performance of different variable-capacity air conditioning and heat pump units.

Part of a larger LBNL report (Deep Energy Retrofit Guidance for the Building America Solutions Center), the Source Energy and Carbon Decisions chapter helps users carefully assess the impacts of switching from gas to electricity for heating end-uses, using source energy and/or carbon emissions...

Report presenting a parametric analysis using a numerical model of a new concept in desiccant and evaporative air conditioning.

Report investigating performance and energy savings potential of heat pump water heaters.

Report using pre- and post-system upgrade data to analyze the energy savings associated with Iowa's HVAC SAVE program for space heating.

Factsheet describing the benefits of purchasing and installing ENERGY STAR rated fans and ventilation products.

The New York State Energy Research and Development Authority (NYSERDA) is interested in finding cost-effective solutions for deep energy retrofits (DERs) related to exterior wall insulation in a cold climate, with targets of 50% peak load reduction and 50% space conditioning energy savings.

Report of a field evaluation of four novel roof designs to see how each design would reduce space-conditioned energy use so that the knowledge gained could be applied to the design of new manufactured homes.

Research study outlining savings from reducing air infiltration, with and without the addition of mechanical ventilation, using two identical laboratory homes designed to model existing Florida building stock.

Report about development of effective strategies to reduce the overall building energy use in line with Building America goals in this modestly priced market rate project.

Report presenting a cold climate project examining and alternative approach to ground source heat pump ground loop design.

Factsheet profiling a simple modification that can be made to window air-conditioners to improve their energy efficiency.

Report presenting improved air conditioner (AC) and heat pump (HP) modeling methods in the context of whole-building simulation tools.

Report examining the impacts that common installation practices and age- induced equipment degradation may have on the installed performance of natural gas furnaces, as measured by steady-state efficiency and AFUE.

Report describing the results of a 21-home field study investigating the effectiveness and failure rates of whole-house mechanical ventilation systems installed in Florida homes over the last 15 years.

Report providing information about laboratory testing of four residential window air conditioners.

Report on the long-term performance of mini-split heat pumps.

Report presenting long-term evaluation results from a hot-dry climate project that examines thermal and HVAC performance in a highly efficient home.

Guidebook providing useful examples of high performance retrofit techniques for the building enclosure of wood frame residential construction in a cold and somewhat wet climate.

Document providing information on the impact of various defects and the potential energy savings that can result from proper maintenance, and describing a two-step process for diagnosing and correcting faults. This document is targeted towards home performance contractors who are relatively...

Project discussing buried or encapsulated ducts and their pros and cons.

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

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.

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.

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.

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.

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.

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.

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

Research study about a high performance retrofit of an existing brick building (a former convent) into condominiums, all affordable housing.

Report about cost effective energy-efficient upgrades that can be implemented in the hot, dry Southwest climate.

Report about results of 10 test buildings in Chicago, studied to identify best practices for methodology, typical costs, and energy savings associated with steam system balancing.

Document covering the pros and cons of compact air distribution systems and the decision criteria that must be considered early in the whole-house design process.

This document covers a description of the need and applied solutions for supplemental dehumidification in warm-humid climates, especially for energy efficient homes where the sensible cooling load has been dramatically reduced.

Report providing performance results of a home's heat pump water heater and whole-house dehumidifier over a six-month period.

This guide and workbook offers practitioners with the knowledge to properly implement the measurement and documentation procedures required in the ANSI/ACCA 5.

Article about installing balanced ventilation systems.