Please ensure Javascript is enabled for purposes of website accessibility

We are closed on Friday, July 4th, 2025 for Independence Day weekend and reopening Monday July 7th, 2025. Enjoy and be safe.

We ship to most places in continental USA
Chat with us
Need help
Our Locations

Williamson GWA-166-N-T-S3-W GWA Series 3, 166 Input MBtu, 84% AFUE, Natural Gas, Atmospheric Vent, Water Boiler, Taco 007, LWCO

SKU
GWA166EI

In Stock. Ships in 1-7 Business Days.

Retail : $4,626.00 - $1757.88 =
$2,868.12 You Save (38%)
selected

selected

selected

selected

selected

selected

selected

- +

Product details

Williamson GWA-166-N-T-S3-W GWA Series 3, 166 Input MBtu, 84% AFUE, Natural Gas, Atmospheric Vent, Water Boiler, Taco 007, LWCO

FEATURES
  • 38,000 to 233,000 Btuh Input
  • Natural or Propane
  • Factory tested
  • Easy service
  • One-piece access door
  • All controls in easy reach
  • Cast iron sections with built-in air separator
  • Insulated heavy-gauge steel jacket
  • Low water cut-off
Williamson
See All Williamson Products

Specification Sheet

Basic Information
MPN ? Manufacturer Part Number GWA-166-N-T-S3-W
Manufacturer Williamson
Series ? A manufacturer's grouping of items that match, coordinate, or complement each other. GWA Series 3
Dimensions and Measurements
Weight ? Weight 325.00
BTU Input 166,000
AFUE 84%
Characteristics and Features
Material ? The material(s) used in the construction of the product. Cast Iron
Boiler Type Residential/Commercial
Fuel Type Natural Gas
Venting Chimney Vent
Venting Type Atmospheric Vent
More from Williamson
Document

Click Here to Explore All Boilers



By using this site you agree to our Terms, Conditions of Use and Privacy Statement
© 2025 AF Supply Corp. All Rights Reserved.