Islam Safir Technician Contact SAFIRIM@ORNL.GOV All Publications Hydronic Shell: An Affordable Solution for Multifamily Deep Energy Retrofit Residential HVAC Fault Detection: Field Data Analysis and Interviews with Smart Thermostat Manufacturers Residential HVAC Fault Data Collection Plan: Refrigerant Undercharge and Overcharge Faults... Organizations Energy Science and Technology Directorate Buildings and Transportation Science Division Building Technologies Research Section Building Envelope Materials Research Group