StacksVerified U.S. regulatory reference

10 CFR §434.604

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
604.1 Compliance with this section is demonstrated if the Design Energy Use is equal to or less than the Energy Use Budget. 604.2 The energy consumption shall be measured at the building five foot line for all fuels. Energy consumed from non-depletable energy sources and heat recovery systems shall not be included in the Design Energy Use calculations. The thermal efficiency of fixtures, equipment, systems or plants in the proposed design shall be simulated by the selected calculation tool.