Pump Sizing & Savings Calculator for Performance+™ System    
    .    
    Your System Details    
    Type of solar pool heating system:†    
   
   
    Number of OKU collector panels:    
       
    Size of pools surface area:    
    m2    
    Pump height - from waterline to collectors:    
    m    
    Total PVC pipe run from pool to collector and back:**    
    m    
    PVC pipe size - from pool to roof:    
   
   
    Average depth of pool:    
    m    
    Approximated volume of pool water:    
    m3    
     
    Compare to Which Industry Standard System?    
    Number of tubes per 160mm strip width:    
   
   
    Constrain L/min/m² flow to:    
       
    (installers typically use 5 L/min/m²)    
     
 
    Simulated Results - Compared System Specs    
    Performance+™ System   Equivalent PVC Tube System    
           
    Select your pump:    
         
    Collector water flow rate (L/min/m²):§    
       
         
    Simulated system flow rate (L/min)    
         
    Pools daily volume turnover:‡    
       
         
    Simulated collector Heat Removal Factor:    
         
    Reduced collector efficiency due to lower system flow rates:    
       
    (try not to go below a 10% loss)    
    Pressure drop from pump head height:    
         
    Pressure drop from pool to collector pipe run:    
         
    Pressure drop from collector array:    
         
    Total system pressure drop:    
         
       
     
    Compare Savings: Performance+ vs PVC Tube   .
    Pump wattage saved due to the lower pump power Performance+ system:    
       
    Extra upfront cost of Performance+ panels vs PVC tube system:    
       
         
    Over a 35 year period    
    Total electricity cost for Performance+ system:¥    
       
    Total electricity cost for PVC tube system:    
       
    Balance elecricity savings over 35 years:    
       
    Balance total savings after the extra cost of the Performance+ panels and a 15 year replacement PVC system is factored in:    
       
         
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