BOILER DIMENSIONS & RATINGS
Table 7.1: Boiler Ratings
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| Series WBV/WV |
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| Heating |
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| Minimum | ||
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| 5 | , |
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| AFUE, |
| Water Content, | ||||||
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| Capacity |
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| Stack | |||||||||
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| Input | MBH |
| Net I=B=R Ratings4 |
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| Draft |
| Model |
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| Steam, | Steam, | Water, |
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| Required, | ||||
| Number | GPH¹ | MBH | Water |
| Steam | sqft | MBH³ | MBH² | Water |
| Steam |
| Water |
| Steam | in. W.C. | |
| 0.60✚✪ | 84 | 75 |
| – | – | – | 65 | 87.5✸ |
| – |
| 11.75 |
| – | |||
| 0.85 | 119 | 104 |
| 103 | 321 | 77 | 90 | 86.2✸ |
| 84.8 |
| 11.75 |
| 12.00 | |||
| 1.05 | 147 | 126 |
| 124 | 388 | 93 | 110 | 85.0 |
| 83.6 |
| 11.75 |
| 12.00 | |||
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| 0.95✚ | 133 | 117 |
| – | – | – | 102 | 87.0✸ |
| – |
| 14.75 |
| – | |||
| 1.25 | 175 | 151 |
| 151 | 471 | 113 | 131 | 85.4✸ |
| 85.3✸ |
| 14.75 |
| 14.87 | |||
| 1.50 | 210 | 180 |
| 179 | 558 | 134 | 156 | 85.1 |
| 84.3 |
| 14.75 |
| 14.87 | |||
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| 1.75 | 245 | 212 |
| – | – | – | 184 | 85.5✸ |
| – |
| 17.75 |
| – | |||
| 1.95 | 273 | 235 |
| – | – | – | 204 | 85.0 |
| – |
| 17.75 |
| – | |||
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✸As an ENERGY STAR® Partner, PB Heat, LLC has determined that these firing rates meet the ENERGY STAR guidelines for energy efficiency. ✝ Top venting only.
✚Nozzles for these firing rates not provided as standard equipment. Consult factory for price and availability. ✪ This firing rate can only be achieved with a Riello
1 Burner input based on No. 2 fuel oil with a heating value of 140,000 Btu per gallon.
2 Net I=B=R water ratings based on an allowance of 1.15.
3 Net I=B=R steam ratings based on an allowance of 1.333.
4 Consult factory before selecting a boiler for installations having unusual piping and pickup requirements, such as intermittent system operation, extensive piping systems, etc.
5 Heating Capacity and Annual Fuel Utilization Efficiency (AFUE) ratings are based on U.S. Government tests, with 13% CO2 and
6 Chimney Size: 8" x 8" x 15 ft.
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