Reports & Materials


Air Sealing and Ventilation Improvements for Multifamily Buildings

Presented at Better Buildings: Better Business Conference, February 2, 2012

Technical Report

Measured Residential Hot Water End Use

High-resolution data on draw volume, length, flow rate, and spacing both overall and by hot water end use; based on data collected in ten homes in the Minneapolis/St. Paul metro area.

Technical Report

Energy Efficient Cities: Using a Community-Based Approach to Achieve Greater Results in Comprehensive, Whole-House Energy-Efficiency Programs

The Energy Efficient Cities project was developed to demonstrate the delivery of innovative residential energy-efficiency programs to reduce energy use and environmental impact in at least 6,000 homes through a community-wide partnership approach.


Energy Drips Video

"Energy Drips" compares energy waste to a leaky faucet, framing energy efficiency in terms of saving money by reducing waste.


Comparison of Secondhand Smoke in Bars and Restaurants Non/smoking Sections

Information on levels of secondhand smoke measured simultaneously in the smoking and nonsmoking section of bars and restaurants in the Minneapolis-Saint Paul metro area, presented at the 2011 Indoor Air conference.

Technical Report

Application of a Linear Input/Output Model to Tankless Water Heaters

This study evaluates the applicability of a linear input/output model to gas-fired, tankless water heaters. The model can be used to reproduce performance metrics, such as the energy factor, and can be used to evaluate the impacts of alternative draw patterns and conditions.

Technical Report

Actual Savings and Performance of Natural Gas Instantaneous Water Heaters

To gain a better understanding of in situ performance, 24 natural gas water heaters were installed in ten Minnesota homes, then extensively monitored and tested under an alternating mode test procedure for 15 months.

Technical Report

Change in Indoor Particle Levels After a Smoking Ban in Minnesota Bars and Restaurants

The primary objective of this study was to provide detailed time-of-day and day-of-week secondhand smoke–exposure data for representative bars and restaurants in Minnesota.

Technical Report

Actual Savings and Performance of Natural Gas Tankless Water Heaters

This project field tested efficiency improvements and energy savings achieved by replacing standard hot water heaters with tankless models.

Technical Report

Secondhand Smoke Transfer and Reductions by Air Sealing and Ventilation in Multiunit Buildings: PFT and Nicotine Verification

This study was undertaken to quantify bulk air transfer between units and document transfer of Secondhand Smoke species before and after treatments that sealed boundaries between units and provided a minimum amount of continuous exhaust ventilation of each unit.