Solar Water Heater | Water Solar Heater | Non-Pressure Solar Water Heater with Assistant Tank by our company is an affordable and eco-friendly water heating solution tailored for residential use. Designed with a non-pressurized system and equipped with an assistant water tank, this product ensures continuous hot water supply through gravity flow, even in areas with inconsistent water pressure. It’s ideal for warm to moderate climate regions and households looking to minimize electricity usage.
Non-Pressure Operation – Simplified gravity-fed water heating ideal for remote or rural homes.
Assistant Tank – Automatically maintains water levels for consistent system operation.
Thermosyphon Design – No need for pumps or power; naturally circulates water.
Stainless Steel Tank – Food-grade inner tank ensures hygiene and corrosion resistance.
Highly Efficient Vacuum Tubes – Fast water heating even in low sunlight.
Affordable & Reliable – Easy to install and cost-effective over time.
Electric Heater Option – Ensures hot water during cloudy weather.
Flexible Capacity Range – Suitable for individuals or large families.
Installation Location: Rooftop / Ground mounted (slope required)
Packaging: Corrugated export boxes or wooden crates for safety
Delivery Time:
< 100 Units: Within 10–15 Days
≥ 100 Units: 15–25 Days (based on production queue)
OEM Support: Available with minimum 50 units per order
Markets Served: Africa, South Asia, Latin America, Middle East, Pacific Islands
Climate Suitability: Works best in warm and sunny environments
Our company specializes in solar thermal solutions that are dependable, user-friendly, and affordable. With deep experience in manufacturing non-pressure solar water heaters for residential use, we ensure our systems are built to last with high-quality stainless steel and borosilicate vacuum tubes. Our heaters with assistant tanks are popular among homeowners seeking a reliable hot water supply without the burden of electrical dependency.
| | Absorbing Area | Vacuum tube | Tank Capacity | Qty per | ||
| | 20GP/40HQ | |||||
| MODEL NO. | Container | |||||
| | (m2) | Diameter(mm) | Length(mm) | No.(pcs) | (Liter) | (set) |
| ENSUN-CNP80-58/1.8 | 0.8 | 58 | 1800 | 8 | 80 | 92/235 |
| ENSUN-CNP100-58/1.8 | 0.8 | 58 | 1800 | 10 | 100 | 78/200 |
| ENSUN-CNP120-58/1.8 | 0.96 | 58 | 1800 | 12 | 120 | 68/170 |
| ENSUN-CNP150-58/1.8 | 1.9 | 58 | 1800 | 15 | 150 | 55/141 |
| ENSUN-CNP180-58/1.8 | 2.16 | 58 | 1800 | 18 | 180 | 48/118 |
| ENSUN-CNP200-58/1.8 | 2.4 | 58 | 1800 | 20 | 200 | 42/108 |
| ENSUN-CNP240-58/1.8 | 2.8 | 58 | 1800 | 24 | 240 | 36/90 |
| ENSUN-CNP300-58/1.8 | 3.6 | 58 | 1800 | 30 | 300 | 28/70 |
| ENSUN-CNP360-58/1.8 | 4.3 | 58 | 1800 | 36 | 350 | 24/62 |
| Material of inner tank | 0.31mm-0.5mm thickness,food grade SUS304-2B or SUS316L | |||
| Material of outer tank | 0.4mm thickness,Stainless steel 202 or SUS304 | |||
| Insulating layer | 50-55mm thickness,45kg/m3 high density polyurethane foamed | |||
| Inlet and outlet hole | Male G 1/2,3/4…… | |||
| Max. pressure | 0.05Mpa | |||
| Solar collector tube | 3.3 Borosilicate glass with Cu-SS-ALN/ANL. coating | |||
| Thickness of glass tube | 1.6mm/1.8mm/2.0mm/2.2mm | |||
| Vacuum tube tightness | P≤0.005 Pa | |||
| Average heat loss coefficient | ULT=0.6~0.7W/(m2.C) | |||
| Bracket(frame) | 1.2mm thickness stainless steel or 1.5mm galvanized steel | |||
| Frame angle | 20/38/45 degrees | | ||
| Structure of tank: | 5 holes for air vent,overflow,water inlet and outlet,electric heater | |||
| Welding | Argon arc welding | |||
| Fastening pieces: | Made of stainless steel screw | |||
| Tank capacity | From 50-500L | |||
SUNECO Solar Technology has an experienced team dedicated to ensuring the highest standards in solar water heating performance. We are committed to delivering personalized customer solutions and ensuring long-lasting product reliability in every installation. Your orders for solar heating systems are closely monitored and implemented to maintain superior product quality from production to delivery.
SUNECO’s solar thermal division operates 24 hours a day, 7 days a week, ensuring responsive service and support across all time zones and regions. Whether you need a solar water heater for a home, a custom solar collector for a commercial building, or accessories for a full installation, SUNECO is ready to serve with consistent excellence and technical expertise.
