Current DOE CCMS record

VIESSMANN B1HE-120 Boiler Specifications

Source facts reported to DOE for this exact model identifier.

Key specifications

DOE-reported brand
VIESSMANN
Exact model number
B1HE-120
Boiler class
Gas-fired hot water boiler
Input capacity
120,000 BTU/h
AFUE
95%
Standby power
4.2 W
Off-mode power
0 W

DOE source details

DOE basic model number(s)
B2HE-85

Source & freshness

DOE CCMS source page

Source snapshot retrieved: September 20, 2026

These records were reported to DOE. Appearance here is not a DOE compliance determination, independent test, or approval.