Boiler Specs: watertube_gas
Boiler performance specifications — thermal efficiency, turndown ratio, operating pressure, flue gas temperature, and fuel input rate by boiler type and output capacity (MBH)
| boiler type | capacity range MBH | flue gas temp F (F) | fuel input rate MBH (MBH) | notes | operating pressure range psig (psig) | thermal efficiency pct (%) | turndown ratio (dimensionless) |
|---|---|---|---|---|---|---|---|
| watertube_gas | 1,000 | 395 | 1,205 | 1000 MBH industrial watertube gas boiler; D-type or O-type design; Cleaver-Brooks FLX series or Bryan Steam LB; steam 125 psig or hot water; 5-pass bent tube design (CB FLX) achieves 83-85% efficiency; modulating burner with 5:1 turndown | 125 | 83 | 5 |
| watertube_gas | 2,000 | 400 | 2,410 | 2000 MBH industrial watertube gas boiler; Cleaver-Brooks FLX or M5M; steam generation 125-150 psig; large commercial / industrial process; membrane wall or bent-tube design; 5:1 turndown standard; low NOx <20 ppm with premix burner | 125 | 83 | 5 |
| watertube_gas | 5,000 | 400 | 6,024 | Industrial watertube gas boiler 5000 MBH; O-type or D-type watertube; steam generation 125-150 psig; industrial process or steam distribution system; Bryan Steam LB or Cleaver-Brooks ClearFire-H; can also serve as fire-side heat exchanger | 125 | 83 | 5 |
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