Compact Pressurized Solar Geyser for Year-Round Hot Water

Compact Pressurized Solar Geyser for Year-Round Hot Water

Working Principle

Flat plate solar water heater is one of common solar water heater for solar water heating system in home.

It provides quality hot water with its new solar energy efficient flat plate design.

This collector includes a selective coating to maximize the solar heat absorption, weather resistant aluminum framing and interior fiberglass insulation for increased efficiency.

Flat plate solar water heater advantages:

1. Copper core and pipes in flat plate as heat exchanger, with a quick startup and super efficiency

2. Three high-tech methods of coating (Selective coating / Black chrome / Titanium-nitride-oxide) to meet your upper needs

3. Laser welding technology ensures seamless jointing of copper core and pipes

4. Modularized collector, arbitrary combination with architectural structure, adaptable to either slope or flat roof, little maintenance needed

5. Designed a new model storage tank from SUS 304, SUS 316L or enamel suitable for any kind of water type

6. The water tank has triple protection, there is T/P valve, negative pressure valve and pressure relief valve, then the water heater can work under different operating condition

Specification And Data

1. We have full stock, and can deliver within short time

2. OEM and ODM order are accepted, Any kind of logo printing or design are available.

3. Strong technical team, accept complex project design work

4. More than 15 years of production experience can better help customers solve problems

5. Before shipping, strictly control the quality so that customers can receive satisfactory products

Flat-Plate Solar Water Heater FAQs

1. What is the difference between flat plate solar water heaters and vacuum tube solar water heaters? Which is better?

• There's no absolute "better," only "better fit."

• When choosing a flat-plate solar water heater, consider aesthetics, durability, pressurized drainage, and architectural integration.

• In areas with very cold winters, vacuum tube solar water heaters are a better choice if they offer higher efficiency in extreme weather.

3. Will they freeze in winter?

• Flat plate solar water heaters have proven antifreeze solutions:

• Indirect system (antifreeze): This is the most popular and reliable method. Antifreeze fluid circulates through the collector circuit instead of water. The antifreeze fluid doesn't freeze at low temperatures, but instead transfers heat to the water in the tank through a heat exchanger. This is the solution used by most flat-plate solar water heaters and is very safe.
  

• Drainage antifreeze: Some systems automatically drain the collector water at low temperatures to prevent freezing.

• Thus, with proper design, they can be used safely in cold regions.

4. Can hot water be produced on rainy days?

• Yes, but an auxiliary power source is required. All solar water heaters are affected by weather. Flat-plate solar water heaters are equipped with an insulated water tank that can store hot water for one to two days on sunny days. During periods of continuous rain, the system automatically activates auxiliary electric heating (or connects to a gas or air-energy water heater as a backup heat source) to ensure a constant supply of hot water.

5. How much does it cost to install a system? How long is the payback period?

• The price depends on the tank capacity, brand, and installation difficulty.
  

• Price: A typical system (100-150 liters) is suitable for a family of three to five, with an initial investment typically ranging from several thousand to tens of thousands of RMB.
  

• Return: This is primarily reflected in savings on electricity or gas bills. Depending on daily hot water usage and local electricity prices, the payback period is typically four to eight years. The system can last for over 15 years and provide essentially free hot water for many years thereafter.
  

6. What is its service life? Is regular maintenance required?

• Service life: Very long. The main structure of a flat-plate collector (the absorber and cover glass) can have a service life of 20 years or more. The insulated water tank has a lifespan of approximately 10 to 15 years.
  

• Maintenance: Minimal maintenance is required. Maintaining the collector surface is crucial, as rainwater washes away most dust, and occasionally checking the system pressure and pipe insulation is essential. Its robust construction eliminates vulnerable parts like vacuum tubes that require separate replacement, making it a worry-free solution.

7. Is the water pressure sufficient?

• Very sufficient!
  

• Flat-panel systems are typically pressurized systems, with the water tank built into the system and relying on mains water pressure for topflow. As a result, the shower experience is the same as with a domestic gas or electric water heater, with sufficient water pressure and no need for an additional pump.
  

8. Is it suitable for all building types?

• It is ideal for new construction or flat-roofed buildings.
  

• Architectural Integration: Due to its aesthetically pleasing, flat appearance, it is particularly suitable for installation on the roofs or balconies of villas, low-rise residential buildings, and public buildings, blending seamlessly into the architectural design.
  

• High-rise buildings: Installation is also possible, but the pipe shaft and installation location must be planned during the initial building design phase.
  

9. Are there any government subsidies or preferential policies? Many countries and regions have implemented subsidies to encourage the use of renewable energy. These subsidies may include:

• Energy-saving subsidies: A one-time cash grant is provided upon purchase or installation.

• Tax exemptions: Certain tax benefits may apply.
  

• For specific policies, please consult your local housing and construction department, the National Development and Reform Commission, or relevant energy management departments for the latest and most accurate information.