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SB Series Commercial Condensing Boilers
Its intelligent water channeling facilitates the condensation process and created even greater energy efficiency (up to 98%). The SB615 utilizes standard US burners and conventional controls and is a perfect match with thermostream boilers in multiple boiler systems. The SB615 and the SB735 are constructed with stainless steel fire tubes and a full three-pass flue design extracts latent heating and maximizes overall efficiency. Its simplified system design eliminates the need for dedicated boiler pumps, bypass and or shunt pumps.
- Ultra High Efficiency - Up to 98%
- No Restriction on Return Temperature and Flow Rates
- Stainless Steel Hydro-Formed Fire Tubes for Long Life
- Dual Returns Provide Unique Design Opportunities
- Suitable for Natural Gas or Liquid Propane Forced Draft Burners
- Low NOx and CO Levels, Meeting Air Quality Control Regulations
- 484 to 4,079 MBH Output
- Simple design eliminates the need for dedicated boiler pumps, bypass or shut pumps
- Perfect match for Thermostream boilers in multiple boiler systems
| MODEL | Input MBtuH | Output MBtuH | Net IBR MBtuH | HP | Combustion Eff. | Water Content Gal. | Dimensions HxWxD | Dry Weight |
|---|---|---|---|---|---|---|---|---|
| SB615-240 | 835.0 | 791.0 | 688.0 | 23.6 | 96.5 | 179.0 | 55.5 x 38.25 x 70 | 1950 |
| SB615-310 | 1080.0 | 1022.0 | 889.0 | 30.5 | 96.4 | 171.0 | 55.5 x 38.25 x 70 | 2030 |
| SB615-400 | 1393.0 | 1317.0 | 1145.0 | 39.3 | 96.3 | 180.0 | 63.5 x 38.25 x 70 | 2600 |
| SB615-510 | 1776.0 | 1678.0 | 1459.0 | 50.1 | 96.2 | 229.0 | 69.75 x 43.25 x 75.25 | 2970 |
| SB615-640 | 2228.0 | 2104.0 | 1830.0 | 62.8 | 96.2 | 223.0 | 69.75 x 43.25 x 75.25 | 3020 |
| SB735-790 | 2751.0 | 2650.0 | 2265.0 | 77.8 | 94.7 | 494.0 | 81.25 x 54 x 91.25 | 3811 |
| SB735-970 | 3378.0 | 3251.0 | 2827.0 | 97.0 | 95.6 | 660.0 | 81.25 x 54 x 108.25 | 4780 |
| SB735-1200 | 4179.0 | 4079.0 | 3547.0 | 121.8 | 96.5 | 668.0 | 81.25 x 54 x 108.25 | 4855 |
| SB615-145 | 506.0 | 484.0 | 421.0 | 14.4 | 97.1 | 148.0 | 54.25 x 35.5 x 68.75 | 1690 |
| SB615-185 | 644.0 | 612.0 | 532.0 | 18.2 | 96.7 | 147.0 | 54.25 x 35.5 x 68.75 | 170 |
Warranty Information
- Heat Exchanger for 120 months -
- All Parts for 12 months -
Available Documents
- View Document (Color, Consumer Literature, Boilers - Commercial)
- View Document (Black & White, Installation & Operation, Boilers - Commercial)
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- View Document (Black & White, Boilers - Commercial, Dimensions)
- View Document (Black & White, Boilers - Commercial, Dimensions)
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- View Document (Black & White, Boilers - Commercial, Dimensions)
- View Document (Black & White, Boilers - Commercial, Dimensions)
- View Document (Black & White, Boilers - Commercial, Dimensions)
- View Document (Black & White, Boilers - Commercial, Dimensions)
- View Document (Black & White, Boilers - Commercial, Dimensions)
- View Document (Black & White, Boilers - Commercial, Dimensions)
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