Boiler Specs: condensing_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) |
|---|---|---|---|---|---|---|---|
| condensing_gas | 50 | 110 | 52 | Small condensing gas-fired boiler 50 MBH output; AFUE/thermal efficiency 96% typical; low flue gas temp indicates condensing mode; min return water temp 130F or below for condensing; modulating burner 5:1 turndown; HTP EFT-50 or equiv | 15 | 96 | 5 |
| condensing_gas | 100 | 115 | 105 | 100 MBH condensing gas boiler; residential/light commercial; Navien NCB-200; Bosch Greenstar 151 | 15 | 95 | 5 |
| condensing_gas | 200 | 120 | 211 | 200 MBH light commercial condensing gas; Lochinvar KNIGHT 201; Crown BWC 200 | 15 | 95 | 6 |
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