U.S. Department of Energy - Energy Efficiency and Renewable Energy

Building Technologies Program – Appliance & Equipment Standards

Residential Furnaces and Boilers Technical Support Document Analytical Tools

Life Cycle Cost Spreadsheets

Subgroup Analysis for Non-Weatherized Gas Furnaces

LCC Regional Spreadsheets (5000 HDD & 6000 HDD)

NIA Spreadsheets

Other Analytical Tools