Unpressurised Rooftop Solar Energy Shower Hot Water System

📋

Basic Specifications

Model NO.	CNP-58
Structure	Compact Type
Pressure	Unpressurized
Interior Material	Stainless Steel
Collector Components	Glass Vacuum Tube
Composition	Tank Insulation
Certification	CE, ISO9001, CCC
Heat Preservation	72hours
Circulation Type	Direct / Open Loop
Inner Tank Material	SUS304 or SUS316
Outer Tank Material	Color Steel, Stainless Steel
Bracket Material	Color Steel, Stainless Steel, Aluminuim
Production Capacity	5000 per Month

🔆

High Efficiency Solar Geyser System

Vacuum Tube Solar Energy Water Heater (50L - 500L) with CE Approval

Quick Guidance

Free brand/LOGO print based on 20GP/40HQ quantity
1% free spare parts provided
Factory audited by SGS, TUV and BV
Delivery time: 12 days after deposit
Certificates: EN12976, CE, CCC, ISO9001, ISO14001, ISO45001

Work Principle

Non-pressure Vacuum Tube Solar Water Heater

Through a thermo-siphon effect (in which hot water rises), hot water circulates between the collectors and the water tank while there is sun and is stored at the end of the day in an insulated tank.

Detailed Photos

Technical Parameters

Compact Non-Pressure Technical Data
Capacity	From 6 tubes (60L) to 50 tubes (500L)
Inner Tank	0.31mm - 0.6mm SUS304-2B / SUS316 Stainless Steel
Insulation	50-60mm High-density Polyurethane Foamed
Solar Collector	3.3 Borosilicate Glass with AL/AL-ALN/ALN Coating
Glass Thickness	1.6mm
Max Pressure	0.06 Mpa
Heat Loss	0.6~0.7w/(m2.c)
Option 1	Assistant tank (3L-50L) for automatic watering
Option 2	Electrical heater and intelligent controller

Installation Instructions

Versatile Design: Suitable for both Flat roof and Pitched roof installations.

✅

Quality Control & Services

Professional Service

Fast delivery (40ft container in 7 days)
Experienced sales team for fast confirmation
Customized designs for different global markets
Mixed loading support for other solar goods
Installation guidance and technical training

❓

Frequently Asked Questions

1. Is solar water heating a viable alternative to gas or electricity?

Solar is a supplement. It cannot totally replace gas or electric as there are days with little sunlight. A correctly sized system provides 60%-70% of a household's hot water needs annually. The system can be automated to guarantee hot water regardless of weather.

2. How long will it take to recoup my investment?

Depending on your location and usage, the cost may be recouped as quickly as 4-5 years through reduced electricity or gas bills. You will make considerable savings during the long lifespan of the heater.

3. Can the solar collectors be used in cold conditions?

Yes. Collectors can be used in temperatures as low as -30°C, though performance is reduced in extreme conditions. Good heat output is still achieved in mild sub-zero conditions.

4. What happens if one of the tubes is broken?

Tubes are strong but easily replaceable if broken. The collector can still operate with broken tubes, though efficiency decreases, so we recommend immediate replacement through your local distributor.

5. Will water be heated on a cloudy day?

Yes. While output is reduced on overcast days, the collector still provides heating. On heavily clouded or rainy days, automation ensures gas or electric boosting maintains the required temperature.

6. How do I protect the system during subzero temperatures?

Freeze protection can be implemented via a controller with a low-temperature setting. When the temperature drops below 5°C, the pump circulates water to warm the collector. In extremely cold areas, a closed loop with a glycol/water mix is used.