Eco-King Ultimate Commercial Boiler EK 399 CHB
 Most Items Ship Same Day 
        
      
      (Warranty, Return and Refunds)
         Most Items Ship Same Day 
        
      
      (Warranty, Return and Refunds)
      
          
    
    High-Efficiency Commercial Wall-Hung Boilers
🔥 Up to 96% Efficiency – High-efficiency condensing boilers with European state-of-the-art technology
⚡ Multiple Sizes & Models – Available in 300, 400, and 500 MBH, with boiler or volume water heater options
🌟 ASME Stainless Steel Heat Exchanger – Durable, corrosion-resistant, and long-lasting
🔗 Cascade Capability – Connect up to 16 boilers in a row for large-scale heating
📦 Racking Systems – 2–4 units per rack with Low Loss Header, plug-and-play ready
💨 3-in-1 Venting Adapters – Vent directly off the top with (C)PVC, PP, or stainless steel
📱 Smart Connectivity – Optional Wi-Fi with mobile app, plus outdoor sensor, Bacnet/Modbus connections
💧 Multiple Pump Connections – Supports dual temperature operation for DHW tanks and heating systems
| Dimensions (h x w x d): 33" X 17" x 21" | 
| Weight: 173 lbs. | 
| Estimated Water Content: 2.19 gpm | 
| Flow/Return connections: 1" | 
| Gas connection: 3/4" | 
| Exhaust & Intake connections (multiple options): 100 / 110 / 4” | 
| Gross Input: 399,000 BTU | 
| AFUE *1 : - | 
| Combustion Efficiency: 94.7% | 
| Gas Supply Pressure: nom/min/max : 7"/3.5"/11" | 
| Electrical Supply: 120 V / Phase / 60V / 12A | 
| Recovery Rate (DHW Models): 428 gph | 
Documents and guides:
Questions?
        Speak with an expert 
1-888-615-0755
      
 
               
             
             
                 
                 
         
    	