e-CFR banner

Home
gpo.gov
govinfo.gov

e-CFR Navigation Aids

Browse

Simple Search

Advanced Search

 — Boolean

 — Proximity

 

Search History

Search Tips

Corrections

Latest Updates

User Info

FAQs

Agency List

Incorporation By Reference

eCFR logo

Related Resources

 

Electronic Code of Federal Regulations

e-CFR data is current as of November 7, 2019

Title 10Chapter IISubchapter DPart 431Subpart E → §431.87


Title 10: Energy
PART 431—ENERGY EFFICIENCY PROGRAM FOR CERTAIN COMMERCIAL AND INDUSTRIAL EQUIPMENT
Subpart E—Commercial Packaged Boilers


§431.87   Energy conservation standards and their effective dates.

(a) Each commercial packaged boiler listed in Table 1 of this section and manufactured on or after the effective date listed must meet the indicated energy conservation standard.

Table 1—Commercial Packaged Boiler Energy Conservation Standards

Equipment categorySubcategoryCertified rated inputEfficiency level—
effective date:
March 2, 2012*
Hot Water Commercial Packaged BoilersGas-fired≥300,000 Btu/h and ≤2,500,000 Btu/h80.0% ET.
Hot Water Commercial Packaged BoilersGas-fired>2,500,000 Btu/h82.0% EC.
Hot Water Commercial Packaged BoilersOil-fired≥300,000 Btu/h and ≤2,500,000 Btu/h82.0% ET.
Hot Water Commercial Packaged BoilersOil-fired>2,500,000 Btu/h84.0% EC.
Steam Commercial Packaged BoilersGas-fired—all, except natural draft≥300,000 Btu/h and ≤2,500,000 Btu/h79.0% ET.
Steam Commercial Packaged BoilersGas-fired—all, except natural draft>2,500,000 Btu/h79.0% ET.
Steam Commercial Packaged BoilersGas-fired—natural draft≥300,000 Btu/h and ≤2,500,000 Btu/h77.0% ET.
Steam Commercial Packaged BoilersGas-fired—natural draft>2,500,000 Btu/h77.0% ET.
Steam Commercial Packaged BoilersOil-fired≥300,000 Btu/h and ≤2,500,000 Btu/h81.0% ET.
Steam Commercial Packaged BoilersOil-fired>2,500,000 Btu/h81.0% ET.

*Where EC is combustion efficiency and ET is thermal efficiency.

(b) Each commercial packaged boiler listed in Table 2 of this section and manufactured on or after the effective date listed in Table 2 must meet the indicated energy conservation standard.

Table 2—Commercial Packaged Boiler Energy Conservation Standards

Equipment categorySubcategoryCertified rated inputEfficiency level—
Effective Date:
March 2, 2022*
Steam Commercial Packaged BoilersGas-fired—natural draft≥300,000 Btu/h and ≤2,500,000 Btu/h79.0% ET.
Steam Commercial Packaged BoilersGas-fired—natural draft>2,500,000 Btu/h79.0% ET.

*Where ET is thermal efficiency.

[81 FR 89306, Dec. 9, 2016]

Need assistance?