New Zealand Solar Systems Specifications

Solar Water Heater with Normal metal Heat Tubes

NZ Solar hot water heating equipment meets and exceeds ISO 9001 standards. All NZ Solar hot water systems are built to NZ standards.

All NZ Solar hot water systems can be configured to maximise the requirements of the customer. By using the glass evacuated tubes there is inbuilt flexibility in the design of your new system. The tubes can be configured in banks of 20, 24 or 30 giving total flexibility of power output and installation size.

Due to the special thermal heat pipe inside a vacuum tube allowing for heat transfer the heater can dispense with the water feeding into the vacuum tube.

This delivers many advantages:

• Massive power production
• High efficiency
• Long service life
• Fast start and outstanding resistance to freezing and temperature strain

All qualities that are, not only desirable, but absolutely necessary in New Zealand's extremely variable climate.

The NZ Solar heating systems feature excellent thermal characteristics, high operating temperatures, all-weather application and very high reliability (tried and tested in good working order at temperatures as low as -50C).

For normal NZ Solar heat tubes:

• Degree of Vacuum: >5x10-3 Pa
• Coating: Aluminium Nitride
• Absorption coefficient: >0.93
• Emissivity: <0.08
• Starting Temperature: <25C
• Maximum Temperature: 250C
• Freeze Proof: -50C
• Service Life: 15-20 years
• Wind Resistance: 55m/s (grade 11)
• Hail Proof: 25mm
• Glass Material: Concentrated borosilicate glass
• Absorber Plate: Copper Profile
• Size of Single Tube: (mm) 58x1800
• Weight of a Single Tube: 2.0 kg
• Size of Condenser end: (mm) 14x50
• Heating-up coefficient: >95%
• Recommended flow rate of 2/3 litres per minute

Glass-evacuated Tube Solar Water Heater

Advantages of NZ Solar Glass-evacuated Tube Solar Water Heater

• Uses AL-N/AL heat adsorption coating on the vacuum tubes; this provides high heat absorption with a low emission rate.
• The water inlet and outlet points are located at the lower parts of the water cylinder to reduce calorific loss.
• Superior all glass vacuum heat collection tubes.
• The inner body of the cylinder is SUS304 food grade stainless steel for corrosion resistance, longer life, non-pollution of the water...clean and hygienic.
• Ultra-strong insulation properties of the high-density urethane layer between the cylinders
• An Electronic controller is mounted at a convenient point within the house. This allows the homeowner to assess at a glance what the water heating system is doing.
• A microcomputer controls the water temperature bringing electricity to boost the solar system on days of continual unfavourable weather patterns.

Specifications for Hot Water Cylinders: Direct System

• Dual layered water cylinders
• The water cylinders are machine made, a functional design pressed from stainless steel, good looking and durable. The inner water cylinder is made from food grade stainless steel and argon welded to assist in providing untainted water.
• A 60mm polyurethane cell between the tanks assists in insulation.
• The cylinder supports are metal, firm, stable and easy to install.
• The connections between the glass tubes and the water cylinder are made from long lasting silicon.

All components guaranteed

NZ Solar Unit Sizes & Weights: