Performance Data

Performance Data Charts
Use Of These Charts Will Determine:
- Model Of The Indirect-Fired Water Heater
- MBH Net Boiler Output Required For Hot Water Generation
- Boiler Water Temperature Required
To Use The Performance Charts, These Conditions Must Be Known:
- Domestic Water Temperature Rise
- Continuous Draw GPH or First Hour Rating GPH
• For the purpose of this manual,
First Hour Rating GPH = Continuous Draw GPH + Usable Storage*
• For hot water requirements greater than those listed, multiple water tanks must be used.
• Smart Series indirect-fired water heaters will absorb less than 200,000 BTU per hour with boiler
supply temperature of 240º F and domestic water outlet temperature of 210º F.
• The installing contractor assumes responsibility for compliance with state or local codes.
Min. Circulator
Flow Rate [gpm]
Usable Storage [gal] Model
Smart-60
Smart-80
Smart-100
50 gal
60 gal
80 gal
20 gpm
22 gpm
24 gpm
Smart-120
100 gal
28 gpm
Boiler Head loss
at Min. Flow
4.0 Ft
4.0 Ft
3.5 Ft
4.5 Ft
1
* Approximately 85% of storage capacity