The HDWS 350 L heat pump solar storage tank was specially designed for modern heating systems in which heat pumps and solar systems are operated together. Thanks to the latest technology and high-quality materials, it ensures even heat distribution and improves the energy efficiency of your system.

With innovative insulation – up to type 600 with 75mm PUR rigid foam (directly foamed) and from type 750 with fleece insulation (Made in Germany) – optimal insulation performance is guaranteed. Two double-wound smooth tube heat exchangers (1 inch tube) ensure efficient heat transfer, while the robust quality steel S275JR, designed according to EN 10025 and EN12897:2006, in combination with the enamel coating according to DIN 4753 ensures durability and optimal corrosion protection. You also receive a guarantee of up to 5 years (with proven maintenance).

Product features at a glance

• Insulation:
  • up to type 600: 75mm PUR rigid foam (directly foamed)
    
• Two double-wound smooth tube heat exchangers (1 inch tube) for efficient heat transfer
• Highest processing quality with quality steel S275JR according to EN 10025, manufactured according to EN12897:2006
• Enamelled according to DIN 4753 for optimal corrosion protection
• Operating pressure: 10 bar
• test pressure: 16 bar
• Maximum operating temperature: 95°C
• Up to 5 years warranty (with proven maintenance)