The Effects of Fuel-Efficient Cookstoves on Fuel Use, Particulate Matter, and Cooking Practices: Results from a Randomized Trial in Rural Uganda
Last registered on March 15, 2019

Pre-Trial

Trial Information
General Information
Title
The Effects of Fuel-Efficient Cookstoves on Fuel Use, Particulate Matter, and Cooking Practices: Results from a Randomized Trial in Rural Uganda
RCT ID
AEARCTR-0003778
Initial registration date
March 12, 2019
Last updated
March 15, 2019 11:03 AM EDT
Location(s)
Region
Primary Investigator
Affiliation
UC Berkeley
Other Primary Investigator(s)
PI Affiliation
UNHCR
PI Affiliation
Cornell University
PI Affiliation
Fordham University
PI Affiliation
UC Berkeley
Additional Trial Information
Status
Completed
Start date
2011-10-10
End date
2012-09-30
Secondary IDs
Abstract
Smoky cookfires contribute to global climate change and kill approximately four million people annually. Manufactured fuel-efficient cookstoves have the potential to reduce these burdens. While many studies have examined the effects of fuel-efficient cookstoves, this study is the first to do so while selling stoves at market prices. Fuelwood usage and household air particulates decline by 0-2% after introducing a fuel-efficient stove. These reductions are smaller than predicted in laboratory and well short of World Health Organization pollution targets. Even when introducing a second fuel-efficient stove, most households continued to use their traditional smoky stoves for a majority of cooking time.
External Link(s)
Registration Citation
Citation
Beltramo, Theresa et al. 2019. "The Effects of Fuel-Efficient Cookstoves on Fuel Use, Particulate Matter, and Cooking Practices: Results from a Randomized Trial in Rural Uganda." AEA RCT Registry. March 15. https://www.socialscienceregistry.org/trials/3778/history/43405
Experimental Details
Interventions
Intervention(s)
Intervention Start Date
2011-10-10
Intervention End Date
2012-09-30
Primary Outcomes
Primary Outcomes (end points)
Stove use, wood use, and particulate matter concentrations.
Primary Outcomes (explanation)
Secondary Outcomes
Secondary Outcomes (end points)
Secondary Outcomes (explanation)
Experimental Design
Experimental Design
We randomly assigned the timing (into two groups) that buyers of the Envirofit G3300 received their Envirofit. In approximately four week intervals: half of the buyers received their first Envirofit stove, then the other half received their first Envirofit stove, and then all (as a surprise) received a gift of a second Envirofit stove.
Experimental Design Details
Randomization Method
Randomization done in office by a computer.
Randomization Unit
household level
Was the treatment clustered?
No
Experiment Characteristics
Sample size: planned number of clusters
NA
Sample size: planned number of observations
168 households
Sample size (or number of clusters) by treatment arms
84 treatment
84 control
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB
INSTITUTIONAL REVIEW BOARDS (IRBs)
IRB Name
Committee for Protection of Human Subjects
IRB Approval Date
2011-10-07
IRB Approval Number
2010-06-1665
Post-Trial
Post Trial Information
Study Withdrawal
Intervention
Is the intervention completed?
Yes
Intervention Completion Date
September 30, 2012, 12:00 AM +00:00
Is data collection complete?
Yes
Data Collection Completion Date
September 30, 2012, 12:00 AM +00:00
Final Sample Size: Number of Clusters (Unit of Randomization)
NA
Was attrition correlated with treatment status?
No
Final Sample Size: Total Number of Observations
164 households
Final Sample Size (or Number of Clusters) by Treatment Arms
82 treatment 82 control
Data Publication
Data Publication
Is public data available?
No
Program Files
Program Files
Reports and Papers
Preliminary Reports
Relevant Papers