GWI - Series 3 - Gas Water - Induced Draft
- 48,000 to 190,000 BTU Input
- Natural or Propane
- Versatile
- Induced-draft design allows sidewall or chimney venting
- High efficiency
- AFUE's to 84%
- Spark-ignited pilot with electronic control
- Compact design
- Factory tested
- Easy service
- One-piece access door
- All controls in easy reach
- Color-coded wiring
- Cast iron sections with built-in air separator
- Insulated heavy-gauge steel jacket
- Low water cut-off
Williamson - Thermoflo GWI Brochure