• Keystone KWC Series

Pennco Keystone KWC Series

KWC Series

The Pennco Keystone KWC Series features a dependable cast iron heat exchanger with cast iron push nipples.  The sections and push nipples expand at the same rate when heated.  By using similar materials instead of less expensive gaskets, the boiler maintains a water tight seal. 

In the Less Coil version, the control monitors water temperature and delays the burner starting until any residual heat has been transferred. Thermal purge logic measures rate of temperature change inside the boiler and delays burner firing accordingly. This maximizes efficiency by turning on the burner only when needed.

In the With Coil version the Low Limit Control seeks maximum temperature to satisfy domestic hot water call bypassing thermal purge logic.


-Assembled boiler with insulated jacket
-Completely installed and wired Beckett AFG Series Oil Burner equipped with:
• Oil Nozzle
• Primary Control
• CAD Cell
• PSC Motor
• Interrupted Duty Ignition and Clean Cut Pump

- Flue Brush
- Target Wall (Vacuum Formed Refractory Ceramic Fiber)
- DuraBlanket Insulation Chamber
- Barometric Draft Control 6"
- Combination Temperature/Pressure Gauge
- Circulator Pump wired with 5'' harness for supply or return mounting in the field
- 3/4" Boiler Drain Valve
- 30 psi ASME Relief Valve
- Extra Boiler Tap for Expansion Tank or Air Elimination

- Swing Burner Door - Provides easy access for servicing and maintaining the bruner/boiler


Alternate Firing Rate Kits

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