WTGO Oil Boiler
High Efficiency Oil Boiler - Tankless Heater (Water)
Models
WTGO-3, WTGO-3L, WTGO-4, WTGO-5, WTGO-6, WTGO-7, WTGO-8, WTGO-9Key Features
- High capacity/high efficiency tankless heater
- Quick open top and swing-away burner door with full chamber access increases visibility for inspection and servicing
- Includes factory-wired circulator, service switch and Weil-McLain exclusive captured elastomer seals for added reliability
- Recessed target wall design protects unit from flue brushes
- Two flue outlets- rear and top - for complete venting flexibility
- Oil-fired water boiler with cast iron sections
- Energy Star Rating
- Available assembled or as a knockdown for installation areas with limited space
- 85% AFUE
Efficiency Rating Chart
| Model | I=B=R Burner Cap (GPH) | DOE Heating Capacity (MBH) | Net I=B=R Ratings (MBH) | Min. Chimney Size:
Rectangular (in) | Annual Fuel Utilization Efficiency (AFUE) |
|---|---|---|---|---|---|
| WTGO-3 | 0.95 | 115 | 100 | 8 x 8 | 85.3 |
| WTGO-3L | 0.95 | 114 | 99 | 8 x 8 | 84.5 |
| WTGO-4 | 1.20 | 145 | 126 | 8 x 8 | 85.0 |
| WTGO-5 | 1.45 | 175 | 152 | 8 x 8 | 85.0 |
| WTGO-6 | 1.75 | 212 | 184 | 8 x 8 | 85.0 |
| WTGO-7 | 2.00 | 242 | 210 | 8 x 8 | 85.0 |
| WTGO-8 | 2.30 | 266 | 231 | 8 x12 | -- |
| WTGO-9 | 2.55 | 295 | 257 | 8 x12 | -- |
Product Manuals and Literature
- Brochure
(1.35 MB)
Architects/Engineers
We have all the technical information you need to specify the right HVAC equipment.
Distributors
Login to our Distributors Only section to view parts catalog, service bulletins and more.