Solar Water Heating Systems Background
Solar Water Heating Systems

Energy-Efficient Solar Water Heater Powered by the Sun

Reduce electricity and fuel costs with reliable solar water heating systems designed for homes, apartments, hotels, hospitals, hostels, and industrial applications.

Sustainable Hot Water

Sustainable Hot Water Solutions for Homes & Businesses

Solar water heaters, also known as solar domestic hot water systems, provide a cost-effective and environmentally friendly way to generate hot water using solar energy. These systems capture heat from sunlight and transfer it to water for daily usage.

Solar water heating systems can be used in a wide range of climatic conditions and help reduce dependence on electricity, diesel, gas, and other conventional energy sources.

Since sunlight is a renewable energy source, solar water heaters offer long-term savings while supporting sustainable energy practices.

What is a Solar Water Heating System?

A solar water heating system uses solar collectors to absorb heat from sunlight and transfer it to water stored in an insulated tank. The heated water can then be used for residential, commercial, and industrial applications.

Solar water heaters are widely used because they help reduce energy consumption, lower utility bills, and provide a reliable supply of hot water throughout the year.

Why Choose Solar Water Heating?

Lower Energy Costs

Reduce electricity and fuel expenses associated with conventional water heating systems.

Significant savings

Environmentally Friendly

Utilize renewable solar energy and reduce carbon emissions.

Zero carbon footprint

Reliable Hot Water Supply

Provides consistent hot water for daily residential and commercial needs.

Continuous availability

Low Maintenance

Designed for long-term operation with minimal maintenance requirements.

Hassle-free operation

Long Service Life

Quality solar water heating systems offer years of reliable performance.

Durable performance

Versatile Applications

Can be installed in homes, apartments, hotels, hospitals, hostels, industries, and institutions.

Highly adaptable

Types of Solar Water Heating Systems

Prompt Power Systems flat plate collector solar water heating panel
Flat Plate Collector

FPC Systems

Reliable Solar Water Heating for Moderate Climate Conditions

A Flat Plate Collector (FPC) consists of a flat rectangular panel containing an absorber plate, a transparent glass cover, and thermal insulation. These collectors absorb solar radiation and transfer the heat to water circulating through the system.

Key Features

  • Consists of a flat, rectangular panel with an absorber plate, transparent glass cover, and insulation.
  • Performs efficiently in moderate climatic conditions with good sunlight exposure.
  • Suitable for temperatures up to approximately 80°C to 90°C.
  • Ideal for residential water heating and space heating applications.
  • Generally less expensive to install compared to advanced collector systems.
  • Simpler construction with lower maintenance requirements.
  • Requires a relatively larger installation area.
Prompt Power Systems evacuated tube collector solar water heating panel
Evacuated Tube Collector

ETC Systems

High-Efficiency Solar Water Heating Technology

An Evacuated Tube Collector (ETC) consists of multiple glass tubes with a vacuum layer between the outer and inner tube surfaces. This vacuum insulation significantly reduces heat loss and improves thermal efficiency. ETC systems provide excellent performance even during colder weather conditions.

Key Features

  • Consists of a series of vacuum-insulated glass tubes.
  • Each tube contains an absorber plate and heat transfer mechanism.
  • Vacuum insulation minimizes heat loss and improves efficiency.
  • Performs exceptionally well during colder weather and cloudy conditions.
  • Achieves higher energy output with less collector surface area.
  • Suitable for applications requiring higher water temperatures.
  • High-pressure, high-density PUF insulated storage tank.
  • Advanced technology designed for enhanced thermal performance.
Technical Specifications

Product Specifications & Details
Thermal Data Sheets

Flat Plate Collector (FPC)

Warranty: 1 Year
DescriptionSpecification
Capacity100 LPD / 200 LPD / 255 LPD / 300 LPD / 500 LPD
Inner TankStainless Steel (304L)
Outer CladdingColour coated sheet or Stainless Steel
CirculationThermosyphon
Raiser & Header TubeCopper
Absorber SheetAluminum
Absorber CoatingHighly Selective Absorbing Black Chrome (withstands up to 300°C)
InsulationRockwool / Polyurethane Foam (PUF)
No. of Fins9 Nos

Evacuated Tube Collector (ETC)

Warranty: 5 Years
DescriptionSpecification
Capacity100 LPD / 150 LPD / 200 LPD / 250 LPD / 300 LPD / 500 LPD
Inner TankStainless Steel (304L)
Outer CladdingColour coated sheet or Stainless Steel
Hermetic Sealing RingsSilicon Rings
Tube MaterialBorosilicate Glass
Tube Diameter58 mm
Tube Length1800 mm
Tube Thickness1.6 mm
InsulationPolyurethane Foam (PUF)
StandColour Coated GI Sheet
Electrical BackupOptional (Extra Charges)

Applications of Solar Water Heating Systems

Solar water heating systems are widely used in:

Residential Homes
Apartments & Villas
Hotels & Resorts
Hospitals & Healthcare Facilities
Hostels
Educational Institutions
Commercial Buildings
Industrial Facilities
Food Processing Units
Community & Public Infrastructure Projects

FPC vs ETC – Which is Better?

Both Flat Plate Collectors (FPC) and Evacuated Tube Collectors (ETC) are effective solar water heating technologies. The most suitable option depends on your hot water requirements, installation space, budget, and climatic conditions.

FPC Systems

  • Durable construction
  • Suitable for moderate climates
  • Lower installation cost
  • Ideal for residential applications

ETC Systems

  • Higher thermal efficiency
  • Better performance in cold weather
  • Higher water temperature capability
  • More energy from smaller area

Frequently Asked Questions

Find out more about solar water heating capabilities, savings, and performance.

A solar water heating system uses solar collectors to absorb heat from sunlight and transfer it to water for residential, commercial, and industrial use.
Both technologies are effective. FPC systems are suitable for moderate climates, while ETC systems generally provide higher efficiency and better performance in colder conditions.
Savings depend on water usage and local energy costs, but solar water heaters can significantly reduce electricity or fuel expenses used for water heating.
Yes. Modern systems are designed to provide heated water even during cloudy conditions, though performance may vary based on sunlight availability.
They can be installed in homes, apartments, hotels, hospitals, hostels, industries, educational institutions, and commercial facilities.
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