| Heating Capacity* | BTU/h | 78,000 |
| COP (Higher Heating Value)* | | 1.43 |
| Max Return Temp (at full fire) | ° F/C | 132/55.6 |
| Max Return Temp (at min fire) | ° F/C | 142/61.1 |
| Delta T (at full fire) | ° F/C | 20/6.7 |
| Gas Input (Higher Heating Value) | BTU/h | 54,500 |
| Modulation (fully variable) | | 4:1 |
| Combustion | | Condensing |
| NOx Compliance (Ultra-Low NOx) | ng/J | <14 |
| Nominal Hydronic Flow | gpm/lpm | 8.5/30 |
| Glycol Concentration | | 40% |
| Ambient Temp (min—max) | ° F/C | -40 — 130/-40 — 54 |
| Voltage | VAC | 115 |
| Maximum Power | Amp | 6 |
| Length | in/cm | 48/121.9 |
| Width | in/cm | 34/86.4 |
| Height || Height with Chimney | in/cm | 44/111.8 || 56.5/143.5 |
| Weight | lbs/kg | 550/249.5 |
| Hydronic Connection FNPT – dia | in/cm | 1/2.5 |
| Gas Connections FNPT – dia | in/cm | 0.5/1.3 |
| Electrical Knockouts (x2) – dia | in/cm | 0.5/1.3 |
| Hydronic Pressure Drop (Nominal Condition) | psi/kPa | 5/34.5 |
| Approximate NH3 Charge | lbs/kg | 12/5.4 |
| Approximate H2O Charge | lbs/kg | 8/3.6 |
| CTA2045 Compliance | | Future release |
| Communications Capabilities | | MODBUS |
| Certification | | ANSI, CGA |
