• Residential Water Heater Sizing

• Commercial Quick Sizing
• Commercial Fitness Center/Gymnasium
• Residential

Gas

Atmospheric Vent

• 1 Heater
• 1 Heater, 1 Storage Tank
• 2 Heaters
• 2 Heaters, Return Circ.
• 2 Heaters, 1 Storage Tank
• 3 Heaters
• 3 Heaters, Return Circ.

Models with Integrated Mixing Device

• 1 Heater
• 1 Heater, Return Circ.
• 1 Heater, 1 Storage Tank
• 2 Heaters
• 2 Heaters, Return Circ.

• TTW

• PDX

• Direct Vent

Ultra High Efficiency

• 1 EF
• 1 EF, Storage Tank, Return Circ.
• 1 EF, Storage Tank, No Return Circ.
• 2 EF, Return Circ.
• 2 EF, No Return Circ.
• 2 EF, 1 Storage Tank, Return Circ.
• 2 EF, 2 Storage Tanks
• 2 EF, 2 Storage Tanks, Return Circ.
• 3 EF
• 3 EF, Return Circulation
• 3 EF, 1 Storage Tank
• 4 EF
• 5 EF, 2 Storage Tanks
• 5 EF, 2 Storage Tanks, Return Circ.

Standard Models

1 Heater, Return Circulation

• Top Connection
• 1 Storage Tank, TC
• 2 Storage Tanks, TC
• 3 Storage Tanks, TC
• 4 Storage Tanks, TC
• Side Connection
• With Mixing Valve
• With Mixing Valve, TC

2 Heaters, Return Circulation

• Top Connections, Return Circulation
• 1 Storage Tank, TC, RC
• 2 Storage Tanks, TC, RC
• 3 Storage Tanks, TC, RC
• 4 Storage Tanks, TC, RC
• No Return Circulation
• Side Connections

3 Heaters

• TC, RC
• SC, RC
• 3 Heaters & 3 Storage Tank, SC, RC

4 Heaters

• TC, RC
• SC, RC

5 Heaters

• TC, RC

• Light Duty TTW Installation

Volume Water Heater Models

• 1 Heater, 1 Vertical Storage Tank
• 1 Heater, 1 Horizontal Storage Tank
• 1 Heater and 1 Storage Tank, 2 Temperatures
• 1 Heater, 2 Vertical Storage Tanks
• 2 Heaters, 1 Storage Tank

Tankless Gas Models

• Basic Installation
• Circulation System
• Standard Installation - 2 WH
• Standard Installation - 3 WH
• Standard Installation - 4 WH
• Standard Installation - 5 WH
• Space Heating - Floor Radiant Heating -1 WH
• Backup Storage - 1 WH
• Backup Storage/Circ. - 1 WH
• Backup Storage - 3 WH
• Freeze Protect./Circ - 6 WH
• Power Failure/Freeze Protect

Commercial Electric

• 1 Heater, TC, RC through drain valve
• 2 Electric Brutes with Vertical Storage Tank

Wall Hung

• Single Wall Hung with Bottom Connections