Recommendations for 15% Above-Code Energy Efficiency Measures for Single-Family Residences

Abstract

This paper presents an overview of the recommendations for achieving 15% above-code energy performance for single-family residences. The analysis was performed using a simulation model of an International Energy Conservation Code (IECC)- compliant, single family residence in Houston, Texas. To accomplish the 15% annual energy use reductions, twelve measures were considered, which include: tankless water heater, solar domestic hot water system, gas water heater without the standing pilot light, ducts in the conditioned space, improved duct sealing, increased air tightness, window shading and redistribution, improved window performance, improved heating and cooling system efficiency. After the total annual energy use was determined for each measure, they were then grouped to accomplish a 15% total annual energy use reduction.