OEM PV Solar Water Heater
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PV Solar Water Heater
Millionsun specializes in the OEM and ODM manufacturing of PV Solar Water Heaters for distributors, solar water heating brands, EPC contractors, and installation companies worldwide.
This direct-drive solution uses PV panels to energize the tank heating element. No collectors, pumps, heat exchangers or antifreeze needed. Available 30L–500L; offered as full units, SKD/CKD or custom designs.
It heats water from 20°C to 55–60°C in 4–6 hours under good sunlight. Supports new installation and retrofitting for electric, solar thermal, heat pump & commercial hot water systems.
Key Features & Performance
Direct PV Heating
Sunlight-to-hot-water direct conversion, no thermal collectors or circulating fluid.
Simple & Fast Installation
No complex pipework or mechanical parts, easy on-site assembly.
20+ Year Lifespan
Durable PV panels with ultra-low maintenance demands.
Minimal Upkeep
Simplified structure reduces failure rate and service costs.
Flexible Placement
Roof, wall and ground mounting available.
Safe DC Direct-Drive
table and reliable electric heating solution.
Wide Retrofit Support
Upgrades electric, solar thermal and heat pump water systems.
Storage System Ready
Supports energy storage connection for higher energy efficiency.
PV Solar Water Heater Specifications
| Type | P-TS30L / 100L | P-TS150L / 300L |
|---|---|---|
| Tank Volume | 30L–100L | 150L–300L |
| Water Tank | Volume range: 30–100L Inner container: Stainless steel 304 or 316L Outer material: Painted steel Electric heating: 1500W / 220V Insulation: Polyurethane, thickness 50mm | Volume range: 150–300L Inner container: Stainless steel 304 or 316L Outer material: Painted steel Electric heating: 2400W / 220V Insulation: Polyurethane, thickness 50mm |
| Solar PV Panel | Power: 1500W Size: 1700 × 1150 × 30mm Quantity: 3 pcs Wire: 12m | Power: 2000W Size: 1500 × 900 × 30mm Quantity: 6 pcs Wire: 12m |
| Bracket | Support: Ramp roof support (standard) Material: Aluminum alloy Bolts & nuts: Stainless steel 304 | |
| Controller | Quantity: 1 pc | |
What we offer?
OEM & ODM Manufacturing Support
Private Label Production
Custom Tank Capacity & Configuration
Complete System or Component Supply
Retrofit Solutions for Existing Water Heating Systems
Technical Documentation & Engineering Support
Custom Project Solutions
Customized capacities up to 500L and project-specific system configurations are available for OEM customers and commercial projects.
Recommended Applications:
Detached Houses
Villas
Holiday Homes
Hotels
Apartments
Commercial Buildings
Business Value
Why PV Solar Water Heaters Create Commercial Value
Creates additional sales opportunities by upgrading existing electric, solar thermal, and heat pump water heaters.
Lower Installation Costs
Eliminates pumps, loops, heat exchangers and antifreeze to save installation expenses.
Less After-Sales Work
Fewer components reduce failure risks and maintenance workload.
20+ Year Lifespan
Long-life PV panels bring attractive returns for distributors and project developers.
Wide Application Scenarios
Works for residential, commercial, off-grid, island and retrofit projects.
Rich Retrofit Potential
Supports upgrades of existing hot water systems to tap renovation market demand.
Product Comparison & Solution Advantages
Relying on the grid for a long time
Using solar power to generate electricity and heat
Ongoing electricity bills
Significantly reduce operating costs
Use affected by power outage
Can be combined with an energy storage system
Energy costs keep going up
Long-term stable energy source
A collector and circulation pipes are needed
No loop pipeline
There’s a risk of leaking
Simpler structure
Needs antifreeze maintenance
No antifreeze needed
Maintenance is complicated
Almost maintenance-free
Multiple system components
Fewer system components
Need a compressor
No compressor
There is noise and vibration
Silent mode
Refrigerant maintenance
No refrigerant
Trouble fixing stuff is complicated
The system is simple
Installation is complicated
Installation is easier
The equipment is heavy
The system is more lightweight
Retrofit Solutions & Business Opportunities
| Existing System Upgrade Opportunities | Business Value for Partners |
|---|---|
| Electric Water Heater Retrofit | Provide solar upgrade solutions to reduce electricity consumption and create new energy-saving replacement opportunities |
| Traditional Solar Water Heater Upgrade | Offer simplified PV heating solutions with fewer components, easier installation, and lower maintenance requirements |
| Heat Pump Water Heater Upgrade | Provide an alternative solution with simpler structure, no compressor, no refrigerant, and reduced service requirements |
| Commercial Hot Water System Upgrade | Develop customized PV heating solutions for hotels, apartments, and commercial projects to improve energy efficiency |
How the System Works?
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Manufacturing & Supply Capabilities
Professional OEM & ODM Manufacturing
OEM Manufacturing
Millionsun makes solar water heating products for partners worldwide.
Our Factory
- 8,000 m² Production Facility
- 80+ Employees
- 6 Automated Production Lines
- Dedicated tank production workshop
- Tank production since 2010
- Tank output: 4,000 units per month
Flexible Supply Options
- Complete Systems
- CKD/SKD Supply
- Component Supply
- Private Label Production
- Customized Configurations
Technical Resources Center
Frequently Asked Questions
Do you provide OEM and ODM manufacturing services?
What water tank capacities are available?
Can the system be customized?
Can the system operate off-grid?
Can existing water heaters be upgraded?
What is the typical production lead time?
What technical support do you provide?
Request OEM Quotation
Visit Our Factory
Building 14, Baiwang Science and Technology Park, No.40, Chuangxing North Road, Gaobu Town, Dongguan City, Guangdong Province, China