The SOLARflo package from Andrews Water Heaters offers a complete solar thermal solution for pre-heating domestic hot water in a commercial applications. The package can be combined with either an Andrews Water Heater or a Potterton Commercial boiler with a twin coil solar cylinder.

SOLARflo includes solar collectors, (either flat plate or excavated tube), roof mountings, (flat roof A-frame, pitched roof on or in or façade mounting), a pump station and controller, a solar cylinder and associated equipment to complete the installation.

  • Glazed flat plate or excavated tube solar collectors to suit your application and building size
  • Integrated system controls for easy monitoring and management
  • Can help to significantly reduce your carbon dioxide emissions
  • Meets the requirements of the Renewable Heat Incentive (RHI)
  • Solar collectors offering high absorption efficiency
  • Compatible with many of our other products including the ECOflo water heater

Description SOLARflo
Manufacturer Andrews Water Heaters
Technical Detail:
Vessel Sizes 450, 550, 700, 900, 1250 (litres)
Max Flow Rate (solar circuit) 30 l/min
Max Pressure Drop: (solar circuit) See curve in pump station instructions
Pressure: (solar circuit) Max 6bar(g)
Temperature: (solar system) 120ºC. Higher Temperatures will occur
Pressure: (dhw system) Standard 3.5bar
Temperature: (dhw system) Operating 60ºC Max 95ºC

Controller 230V/1ph/50hz, 4Amps.

Pump station is powered and controlled by the controller. This does not include any immersion heaters.
Sensors PT1000
DHW Heating Vessels:

Combined (twin coil or coil and immersion heater).

Pre-heat (single coil)
Top Up Systems for Preheat Any Andrews Water Heaters gas fired condensing water heater
Primary Heating Valve control
Enable signal
Immersion heater options
Boiler system


Learn more about the SOLARflo by downloading product literature.

Download your Building Information Modeling (BIM) object(s) for this product.

Interested in this product for your premises? Complete the form below and someone from the team will contact you shortly.

Alternatively, speak to your Area Sales Managers about this or any of our products. You can find their details here.

Fill out my online form.

Andrews Water Heaters