The Solahart CS13C Free Heat Series uses closed-circuit thermosiphon technology for reliable, corrosion-resistant solar hot water. Perfect for areas with harsh water conditions, this system delivers long-lasting performance.

The Solahart CS13C Free Heat Series features closed-circuit thermosiphon technology, providing enhanced protection against corrosion, making it the perfect solution for harsh water conditions. This system ensures efficient and reliable hot water year-round, backed by an optional electric or gas boost. The TRV valve ensures safe pressure relief, while the Super Shield Enamel® coating offers maximum protection against corrosion, particularly in harsh water environments.

USPs:

• HIGH PERFORMANCE in harsh water conditions^, with corrosion protection for long-term reliability.
• TRV valve for safe pressure relief during high temperature or pressure events.
• Closed-circuit design prevents system damage caused by aggressive water chemistry.
• Super Shield Enamel for maximum durability and corrosion resistance.
• Electric or gas boost ensures hot water availability, regardless of weather conditions.
• Minimal maintenance, providing a hassle-free solution for harsh water areas.

Energy & CO₂ Savings:

• Reduced Energy Use: Save up to 65% on water heating costs compared to traditional systems.#
• Reduce CO₂ emissions by around 0.8 to 2.3 tonnes annually, the same as removing a small car from the road.#

Warranty:

• 10-year warranty on the collector and tank.*
• 5-year warranty on parts and labour.*

Systems Available:
181CS13C, 302CS13C, 303CS13C

Collectors: CS13C - provides higher performance in low-to-medium solar gain areas.

^ Harsh water regions – the Solahart warranty may not apply if the water heater is connected to a water supply which has a Total Dissolved Solids content >2500mg/L. If the water supply is scaling with a saturation index > 0.8 a low watts density heating unit must be used, or is corrosive with a saturation index <-1.0 a corrosion resistant heating unit must be used, for warranty to apply to the heating unit.

# Energy savings of up to 65% to 75% shown are based on Australian Government-approved TRNSYS simulation modelling of a Solahart 302CS13C Free Heat, and using a medium load in Zone 3 and apply when replacing an electric water heater. Any savings will vary depending upon your location, type of Solahart system installed, orientation and inclination of the solar collectors, type of water heater being replaced, hot water consumption and fuel tariff. Maximum financial savings off your hot water bill are achievable when replacing an electric water heater on a continuous tariff. Refer to solahart.com.au for more information.

* Solahart Warranty Details: Free Heat 10/5/5 warranty, 10-year cylinder and collector supply, 5-year parts supply, 5-year labour applies only when installed as a complete new system.

HartStat OTP is supplied as standard on CS13C Free Heat systems. HartStat OTP is mandatory on 302 and 303CS13C Free Heat Systems in New Zealand.

For servicing and safe access, a space equal to the tank length should be left on the water connection end of the system, and 1m (40in) should be left on the three other sides of the installation. SP Free Heat & CS13C
Free Heat Systems can be installed as a solar pre-heater with an in-line Solahart gas booster water heater. Refer to the Solahart gas booster specification sheet for further details on the gas booster.