
 
            | Item # | Input Modulation | Capacity | First Hour Rating | Thermal Efficiency | 
|---|---|---|---|---|
| PH76-50 | N/A 25000 to 76000 BTU/hr | N/A 50 gal | N/A 133 gal | N/A 97 % | 
| PH76-60 | N/A 25000 to 76000 BTU/hr | N/A 60 gal | N/A 140 gal | N/A 97 % | 
| PH76-80 | N/A 25000 to 76000 BTU/hr | N/A 80 gal | N/A 154 gal | N/A 95 % | 
