100 Litre ETC Solar Water Heater
A 100 LPD solar water heating system designed for residential hot water requirements using renewable solar energy.
Available Models: WA-100, GI-100
Price for WA-100
₹24,125
₹19,300
20% Off
The crossed price is the pre-discount price. The displayed selling price includes 20% off. Final quotation may vary with installation, location and selected configuration.
100 Litre / 100 LPD
ETC Technology
Solar Powered
Residential Use
100 Litre Solar Water Heater Price in India
The Sun Stellar 100 litre ETC solar water heater is available in 2 model options: WA-100, GI-100. Offer prices after 20% discount currently range from ₹19,300 to ₹20,000. Final installed price can depend on site conditions, piping, location and the selected system configuration.
Lower Dependence on Electricity
Solar thermal energy is used to heat water during the day, helping reduce reliance on conventional electric water heating.
ETC Solar Technology
Evacuated Tube Collectors use double-layer borosilicate glass tubes to absorb solar energy while limiting heat loss.
Designed for Practical Hot Water Use
The 100 litre capacity can be considered for residential hot water needs. Final sizing should be based on actual daily consumption and site conditions.
100 LPD Solar Water Heater Specifications
Verified product information and system details available from Sun Stellar.
| Brand | Sun Stellar |
|---|---|
| Available Models | WA-100, GI-100 |
| Capacity | 100 Litres / 100 LPD |
| Collector Technology | ETC (Evacuated Tube Collector) |
| Energy Source | Solar Energy |
| Primary Application | Residential hot water |
| Typical Installation Area | Rooftop or open area with adequate sunlight |
| Starting Offer Price | ₹19,300 |
| Offer Price Range | ₹19,300 – ₹20,000 |
| Displayed Discount | 20% |
| Warranty | Varies by specification; confirm for selected configuration |
Key Features
Built around Sun Stellar's ETC solar water heating technology.
- 100 litre daily hot water capacity class
- Evacuated Tube Collector technology
- Renewable solar energy based water heating
- High density PUF insulation used across Sun Stellar ETC systems
- Low maintenance design
- System options are available for different water conditions
- Electrical backup can be considered for low-sunlight periods, subject to configuration
For detailed tank material, tube count, tube dimensions and water-condition configuration for the current 100L model, request the latest technical sheet from Sun Stellar.
How Does a 100 Litre ETC Solar Water Heater Work?
ETC solar water heating uses sunlight collected through evacuated glass tubes to heat water and store it in an insulated tank for later use.
1
Sunlight
Solar radiation falls on the evacuated tube collectors.
2
Heat Absorption
The ETC tubes absorb solar energy and convert it into heat.
3
Natural Circulation
Water circulates through the system as hot and cold water density changes.
4
Hot Water Storage
Heated water is retained in an insulated tank until required.
Is a 100 Litre Solar Water Heater Right for Your Home?
A 100L solar water heater can be considered for residential hot water requirements, but the right capacity should be selected from actual usage rather than litre capacity alone.
- Number of people using hot water daily
- Number of bathrooms and usage pattern
- Bucket bath versus shower usage
- Local climate and available sunlight
- Water quality in your area
- Rooftop space, orientation and piping distance
Not sure which solar water heater capacity is right? Share your household requirement with Sun Stellar before ordering.
Ask for capacity recommendation →Installation Checklist
Before installation, confirm:
- Open rooftop area with good sunlight exposure
- Suitable orientation for the solar collector
- Stable installation surface and support structure
- Cold-water inlet and hot-water distribution piping
- Water quality and appropriate system configuration
- Backup heating requirement for prolonged cloudy periods
Choose the ETC System According to Water Quality
Sun Stellar lists multiple ETC system options for different water conditions. Final product selection should be confirmed for your site.
Stellar Prime
Positioned by Sun Stellar for soft water regions, with seam-welding technology and high-density PUF insulation.
Stellar Magic
Positioned for hard water regions and uses a non-welded technology with an assistant tank.
Stellar Shield
Positioned for extreme hard water regions with a galvanised iron inner tank and epoxy coating.
100 Litre Solar Water Heater vs Other Capacities
Capacity selection should follow actual hot water consumption. This comparison is intended as a selection guide rather than a fixed user-count recommendation.
| Capacity | Best Considered When | What to Check |
|---|---|---|
| 100 Litre | Daily hot water requirement is relatively low | Users, bathing pattern, climate |
| 150 Litre | You need a mid-size residential capacity | Bathrooms, peak-time demand |
| 200 Litre | You need a larger residential hot water reserve | Daily consumption and rooftop conditions |
| 250 Litre | You are considering an intermediate residential capacity | Actual daily consumption and peak-time demand |
| 300 Litre | Daily hot water requirement is higher | Usage pattern, site and piping |
| 500 Litre | Higher-capacity residential or suitable commercial requirement | Project sizing and technical configuration |
Why Choose Sun Stellar for Solar Water Heating?
Sun Stellar manufactures solar water heating systems and lists residential as well as larger project installations across India.
System Selection by Water Condition
ETC options are available for soft, hard and extreme hard water conditions.
Insulated Hot Water Storage
Sun Stellar ETC systems use insulation to help reduce heat loss from stored hot water.
Installation Experience
Sun Stellar showcases solar water heating installations across residential, institutional and hospitality projects.
100 Litre Solar Water Heater FAQs
What is the price of a 100 litre solar water heater?
Sun Stellar currently lists the following 100 litre options: WA-100: ₹24,125 MRP, ₹19,300 after 20% off; GI-100: ₹25,000 MRP, ₹20,000 after 20% off. Final quotation may vary with installation, location and configuration, so confirm the latest price before purchase.
What does 100 LPD mean in a solar water heater?
LPD means litres per day. A 100 LPD solar water heater refers to a system in the 100 litre daily hot water capacity class under suitable operating conditions.
What is ETC in a solar water heater?
ETC stands for Evacuated Tube Collector. It uses evacuated double-layer glass tubes to absorb solar energy and reduce heat loss while heating water.
Is a 100 litre solar water heater suitable for my family?
Suitability depends on the number of users, bathing habits, bathrooms, local climate and daily hot water consumption. Sun Stellar recommends confirming capacity against actual usage before purchase.
Does a solar water heater work on cloudy days?
Heating output reduces when solar radiation is low. On partially cloudy days some output may still be available. A suitable electrical backup can be considered where uninterrupted hot water is required.
Can an ETC solar water heater be used in hard water areas?
Sun Stellar lists different ETC configurations for soft, hard and extreme hard water regions. Water quality should be checked so the appropriate system configuration can be selected.
What maintenance does a 100 LPD solar water heater need?
Domestic solar water heating systems generally need periodic checks of plumbing, collector tubes, tank and connections. In hard water areas, scaling may require descaling over time, and damaged glass tubes should be replaced when necessary.
Where should a 100 litre solar water heater be installed?
Solar water heaters are normally installed on a terrace, rooftop or other open area with good sunlight exposure. Collector orientation, structural suitability and piping should be checked before installation.
Get the Latest 100 Litre Solar Water Heater Price
Share your location, number of users and hot water requirement with Sun Stellar to confirm the right capacity, configuration and installation quotation.
