100L solar water heater is a newly installed integrated high-pressure system in Malawi, using a heat pipe model with copper pipes and aluminum fins inside evacuated tubes for fast and efficient heat transfer. Durable, affordable, and bankable, it provides a reliable clean energy hot water solution for household use.
100L Solar Water Heater Working Principles:
The integrated pressurized solar water heater utilizes heat pipes for efficient water heating. Here’s an overview of its operation:
1. Solar Collector: Mounted on the roof or in sunlight-rich areas, the collector consists of evacuated tubes, each containing a copper heat pipe.
2. Evacuated Tubes & Heat Pipes: The heat pipe, filled with a working fluid (e.g., water or alcohol), has two sections: an evaporator in the collector and a condenser in the storage tank.
3. Solar Absorption & Heat Transfer: Sunlight heats the fluid in the evaporator, causing it to vaporize. The vapor then moves to the condenser, where it releases its heat, warming the water in the tank.
4. Gravity Circulation: Gravity drives the condensed liquid back to the evaporator, ensuring continuous circulation.
5. Pressurized Storage Tank: The tank is pressure-resistant and stores hot water, which can be supplied directly to plumbing fixtures.
6. Temperature Regulation: Sensors and a controller maintain optimal temperature and pressure for efficient and safe operation.
This system is highly efficient, providing reliable hot water even in varying weather conditions, while offering better water pressure than non-pressurized alternatives.
100L Solar Water Heater Unique Selling Points
●Adjustable mounting bracket – suitable for both flat roofs and sloped roofs, ensuring flexible installation.
●Newly designed vacuum tube holder for improved stability and longer service life.
●Upgraded electric heating element cover for enhanced safety and easy maintenance.
●316L stainless steel socket, offering excellent corrosion resistance and durability.
100L Solar Water Heater Overview:
| Overview | |||||
| Model: | Solar Vacuum Tube | Aperture Area | Gross Area | Capacity | |
| Item No. | Qty /【pcs】 | Size /【mm】 | 【M2】 | 【M2】 | 【L】 |
| IronMan-100L | 10 | Φ58 X 1800 | 0.94 | 1.546 | 100 |
100L Solar Water Heater Specification:
| Heat Pipe Solar Water Heaters Technical Parameters | ||
| 1 | Model | IRONMAN-SERIAL |
| 2 | Water Tank | |
| 3 | Material of Outer Tank Shell | High Quality Stainless Steel Plate |
| 4 | Material of Inner Tank Chest | Food Grade SUS304-2B SS |
| 5 | Water Tank Diameter | 【360/470 mm】 |
| 6 | Water Tank Insulating Layer | High Density Polyurethane,【55mm】 |
| 7 | Vacuum Tube | |
| 8 | Tube Structure | All-Glass Double-Tube Co-Axial Structure |
| 9 | Glass Material | High Borosilicate 3.3 glass |
| 10 | Tube Size | 58*1800mm * 24 Tubes |
| 11 | Coating Material | 【Cu/SS-ALN(H)/SS-ALN(L)/ALN】 |
| 12 | Sediment Method | Tri-Element Magnetron Sputtering Plating |
| 13 | Absorb Ratio | 0.93-0.96> 92% (AM 1.5) |
| 14 | Emission ratio | 0.04-0.06(800C±50C) |
| 15 | Heat Pipe | |
| 16 | Heat Pipe Material | TU1 Copper |
| 17 | Heat Pipe Condenser Size | 【Ø14mm Diameter】【80mm Length】 |
| 18 | Heat Pipe Body Size | Ø8mm Diameter |
| 19 | Riwatt Heat Pipe Pocket | 【316 STAINLESS STEEL】 |
| 20 | Heat-Transfer-Fins | Premium Complete Type (Super Model) |
| 21 | Max.Working Temp | -37 ~250C |
| 22 | Start-up Temp. of Heat Pipe | <=30C |
| 23 | Working Pressure | 0.7Mpa. |
| 24 | Testing Pressure | 1.2Mpa. |
| 25 | Daily Efficiency | 55% |
| 26 | Heat Pipe Material | TU1 Copper |
| 27 | Bracket | |
| 28 | Bracket Material | Stronger Stainless Steel or Galvanized Steel |
| 29 | Bracket Angle | 27° |
| 30 | Bolts & Nuts | Stainless Steel |
100L Solar Hot Water Heating System Warranty:
Water tank Solar vacuum tube and bracket: 5 years
Accessories(PT valve, check valve, SR609C controllers, magnesium anode. backing up electrci heating element,vacuum safety valve…): 1 year
100L Solar Geysers Accessories:
| Heat Pipe Solar Water Heater Accessories | ||
| Serial No. | Description | QTY. (Pcs) |
| ❶ | PT VALVE (90/95℃ Degree ) 3/4’’ | 1 |
| ❷ | Non Return & Pressure Relief Valve 3/4’’ | 1 |
| ❸ | Backing up electric heater element. 1’ or 1 1/4” | 1 |
| ❹ | Vacuum Safety Valve | 1 |
| ❺ | Magnesium Anode | 1 |
| ❻ | SR609C Solar Controller | 1 |
| ❼ | Pre-Water-Filters | 1 |
| ❽ | Thermostatic mixing valve – 3/4’’ | 1 |
FAQs – 100L Solar Water Heater
1. What is a 100L solar water heater suitable for?
A 100L solar water heater is ideal for small families (2–3 people), apartments, staff housing, and light commercial use. It provides sufficient hot water for daily bathing and household needs while saving electricity.
2. How does a heat pipe solar water heater work?
The heat pipe system absorbs solar energy through evacuated tubes. Heat is transferred efficiently to the water tank without direct contact between water and the heat pipe, ensuring fast heating and high thermal efficiency.
3. Can the 100L solar water heater be installed on different roof types?
Yes. The system comes with an adjustable bracket, making it suitable for both flat roofs and sloped roofs, allowing flexible installation in various building structures.
4. Is an electric backup heater included in the system?
Yes. The 100L solar water heater is equipped with an electric heating element for backup, ensuring a continuous hot water supply during cloudy days or at night.
5. What materials are used to ensure durability and long service life?
The system features high-quality evacuated tubes, a newly designed tube holder, and a 316L stainless steel socket, providing excellent corrosion resistance, safety, and long-term reliability.
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