TY - JOUR AU - Healy, William AU - Ullah, Tania AU - Roller, John C2 - ASHRAE Transactions DA - 2011-11-01 LA - en M1 - 117 PB - ASHRAE Transactions PY - 2011 TI - Input-Output Approach to Predicting the Energy Efficiency of Residential Water Heaters – Testing of Gas Tankless and Electric Storage Water Heaters ER -