Solahart CS13C Series

solahart cs13c rooftop solar hot water system

Solahart CS13C Series: Efficient Hot Water for All Climates

At Solahart East Gippsland, we believe every home deserves reliable hot water, regardless of the weather. The Solahart CS13C Series is a premium, roof-mounted “closed-circuit” system designed to provide efficient performance even in low to medium solar gain areas. Built to withstand the harsh Australian environment, it is the perfect solution for frost-prone regions and areas with difficult water chemistry.

Take control of your household costs with a high-performance system that captures more energy on cooler days while protecting your investment from the elements.

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Closed-Circuit Protection: Reliability in Any Weather

The CS13C Series uses a specialised “closed-circuit” design to protect your system from internal damage. Instead of heating your household water directly in the panels, it heats a non-toxic heat-transfer fluid called Hartgard. This fluid then transfers its heat to the water in your tank, preventing mineral build-up and ensuring the collectors never freeze during cold East Gippsland mornings.

Featuring the Australian-designed Envelope solar collector, the CS13C series extracts the maximum amount of energy from the sun with its high-efficiency 13-riser absorber surface.

solahart cs13c rooftop solar hot water system

Product Benefits at a Glance

  • Superior Efficiency in Low Light: Specifically designed for areas with low to medium solar gain, ensuring high-performance water heating even on overcast or cooler days.
  • Ultimate Frost & Corrosion Protection: The closed-circuit thermosiphon technology uses Hartgard fluid to shield your collectors from freezing temperatures and aggressive water chemistry.
  • Substantial Energy Savings: Can reduce your water heating energy consumption by up to 65% to 83%, significantly cutting your utility bills and carbon footprint.
  • Space-Saving Roof Design: Both the tank and collectors are mounted on the roof, freeing up valuable ground space and utilizing natural thermosiphon principles for low-maintenance operation.
  • Long-Lasting Durability: The ceramic-lined tank features Solahart Super-Shield® enamel and a protective sacrificial anode for enhanced longevity in harsh environments.
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Frequently Asked Questions

How does it protect against "Harsh Water"?

Because it’s a closed-circuit system, your actual tap water never flows through the solar collectors. This prevents minerals from clogging or corroding the delicate internal pipes, keeping the system running efficiently for years.

Will I have hot water when it's cloudy?

Yes. Every CS13C system comes standard with an in-built electric or gas booster. This ensures you have steaming hot water regardless of the weather, while the solar panels do the heavy lifting whenever the sun is out.

What is the warranty on this system?

The CS13C is backed by a 10-year warranty on the cylinder and collectors, plus a 5-year warranty on parts and labour, providing long-term peace of mind.