Ultra Oil Boiler
3-pass cast iron high efficiency heat exchanger
Models
UO-3 (0.80 GPH), UO-3 (1.00 GPH), UO-4, UO-5Key Features
- Optional Advanced Features Module that provides indoor/outdoor reset, DHW priority, stage firing and more
- Dedicated water-only oil boiler
- Flexible direct or chimney venting - no power assisted fan needed
- Reversible swing-away burner door
- Three-pass cast iron heat exchanger with captured elastomer seals
- Energy Star Rating
- 86% AFUE
Efficiency Rating Chart
| Model | I=B=R Burner Cap (GPH) | DOE Heating Capacity (MBH) | Net I=B=R Ratings (MBH) | Min. Chimney Size | Annual Fuel Utilization Efficiency (AFUE) |
|---|---|---|---|---|---|
| UO-3 (0.80 GPH) | 0.80 | 98 | 85 | 8 x 8 | 86.5 |
| UO-3 (1.00 GPH) | 1.00 | 122 | 106 | 8 x 8 | 86.5 |
| UO-4 | 1.20 | 146 | 127 | 8 x 8 | 86.2 |
| UO-5 | 1.40 | 172 | 150 | 8 x 8 | 86.5 |
Product Manuals and Literature
- Brochure
(2.11 MB)
- User Manual
(1.74 MB)
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