Active and direct solar water heating system
Active and direct solar water heating system
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Varm Commercial Pool Series 121 kW – 145 kW Heat Pump
Varm Commercial Pool Series 121 kW – 145 kW Heat Pump
Active and indirect solar water heating system - Image 1
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Active and indirect solar water heating system
Active and indirect solar water heating system - Image 2
Active and indirect solar water heating system - Image 3

Active and indirect solar water heating system

Product Overview

Our Active Indirect Solar Water Heating System is a high-efficiency, premium solar solution designed for areas with hard or poor-quality water. Using a closed-loop heat transfer system, it delivers clean, stable, and scale-free hot water while protecting the system and extending its lifespan.

A glycol-based heat transfer fluid circulates through the solar collectors via a high-efficiency pump. A smart temperature controller transfers heat to a built-in heat exchanger, heating domestic water indirectly for safe, hygienic use.

The closed-loop design prevents scaling, corrosion, and freezing, making the system ideal for homes, hotels, hospitals, institutions, and industrial applications in Kenya.

The stainless steel insulated storage tank minimizes heat loss, while flexible installation supports flat and pitched roofs. Supplied as a complete package with backup electric heater and safety controls, the system ensures reliable hot water day and night.

Technical Specification
Model SIA 200 SIA 300 SIA 500 SIA 1000 SIA 1500 SIA 2000 SIA 3000
Tank Capacity (Litres) 200 L 300 L 500 L 1000 L 1500 L 2000 L 3000 L
System Type Indirect Active (Closed Loop) Same Same Same Same Same Same
Tank Orientation Vertical, Ground Mounted Same Same Same Same Same Same
Inner Tank Material Stainless Steel Plate (SUS 304/316)** Same Same Same Same Same Same
Outer Tank Casing Powder-Coated & Galvanized Steel Plate Same Same Same Same Same Same
Insulation Polyurethane Foam (PUF) PUF PUF PUF PUF PUF PUF
Insulation Thickness 50–70 mm 50–70 mm 60–80 mm 60–80 mm 70–90 mm 70–90 mm 80–100 mm
Heat Exchanger Type Built-in Coil (Copper or Stainless Steel Optional) Same Same Larger Coil Larger Coil Industrial Coil Industrial Coil
Collector Type Flat Plate Collectors Same Same Same Same Same Same
Number of Collectors 2 2 4 6 9 12 18
Collector Mounting Options Pitched Roof / Flat Roof Same Same Same Same Same Same
Circulation Pump High-Efficiency Pump for Closed Loop Same Same Same Same Same Same
Control System Differential Automatic Temperature Controller Same Same Same Same Same Same
Backup Electrical Heater Included (Thermostat Controlled) Same Same Same Same Same Same
Safety Components Pressure & Temperature Relief Valve Same Same Same Same Same Same
Air Release Valve Included Included Included Included Included Included Included
Expansion Vessel Included (For Closed Loop Pressure Management) Same Same Same Same Larger Vessel Larger Vessel
Solar-to-Solar Connectors Included Same Same Same Same Same Same
Operating Pressure 1.0–1.5 bar (System Dependent) Same Same Same Same Same Same
Max. Temperature Rating 90°C 90°C 90°C 90°C 90°C 90°C 90°C
Heat Transfer Fluid Water / Propylene Glycol Mix (Anti-Freeze & Anti-Corrosion) Same Same Same Same Same Same
Heat Transfer Mechanism Forced Circulation (Pump Based) Same Same Same Same Same Same
Recommended Applications Homes / Small Institutions Homes / Medium Institutions Commercial / Industrial Industrial / Estates Hotels / Industrial Large Industries Large Commercial Complexes
System Weight (Approx., Empty) ~130 kg ~170 kg ~260 kg ~480 kg ~720 kg ~950 kg ~1500 kg
System Weight (Approx., Full) ~330 kg ~470 kg ~760 kg ~1480 kg ~2220 kg ~2950 kg ~4500 kg
Warranty 5 Years (Tank & Collectors) Same Same Same Same Same Same
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