In this project, Berkeley Air completed an assessment of the post-acquisition services for improved cookstoves (e.g., user maintenance training, replacement parts, and repair services) in four regions of Peru. Methods included the implementation of in-depth household surveys to assess current stove use behavior, maintenance practices, stove durability, access to and use of after-sales services. In-depth surveys were administered to a total of 600 households located across four study regions. Stove use and performance was also measured in a sub-sample of households using Kitchen Performance Tests and stove use monitors.