Current DOE CCMS record

WILLIAMSON-THERMOFLO GWA-067 Boiler Specifications

Source facts reported to DOE for this exact model identifier.

Key specifications

DOE-reported brand
WILLIAMSON-THERMOFLO
Exact model number
GWA-067
Boiler class
Gas-fired hot water boiler
Input capacity
67,000 BTU/h
AFUE
84%
Standby power
9 W
Off-mode power
9 W

DOE source details

DOE basic model number(s)
CGA-3

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.