Wall-Mounted Solar Water Tank
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Wall-Mounted Solar Water Tank
Millionsun specializes in OEM and ODM manufacturing of wall-mounted solar water tanks for distributors, solar brands, system integrators, and installers worldwide.
A wall-mounted solar water tank is designed to be installed on vertical walls, saving valuable floor space. The tank can be used as a pre-heat tank for solar systems, a storage tank for heat pump systems, or as a standalone electric water heater.
Key Features & Performance
Wall-Mounted
Fits solid vertical walls, zero floorspace requirement; great for apartments & compact rooms.
Stainless-Steel Inner Tank
Food-grade SUS304/SUS316, anti-corrosion, hard-water tolerant, potable-water safe.
Compact Design
Small footprint with reliable hot-water storage for space-constrained homes.
50 mm PU Foam Insulation
Effective heat retention and low heat loss.
Electric Backup Heating
Built-in element with auto temperature control for low solar / heat-pump output.
0.7 MPa Pressurized System
Mains-pressure hot water for showers and faucets.
Fast Installation
Supplied with mounting bracket, standard fittings; installable within 2 hours by qualified technicians.
Standard Wall-Mounted Tank Specifications
| Model | FC/100L | FC/150L | FC/200L |
|---|---|---|---|
| Dimension (mm) | Φ520 × 975 | Φ520 × 1312 | Φ520 × 1590 |
| Tank Capacity (L) | 105 | 155 | 210 |
| Inner Tank | SUS316L / 304 stainless steel, thickness 1.5 mm | ||
| Outer Tank | Galvanized steel sheet with UV coating, thickness 0.5 mm | ||
| Insulation | Polyurethane foam, thickness 50 mm | ||
| Tank Cap | Engineering plastics | ||
| Connector | G 3/4" Male thread | ||
| Working Pressure | 0.7 MPa | ||
| Test Pressure | 1.2 MPa | ||
| Electric Backup | 1.5 kW or 2.4 kW (optional) | ||
| Safety Devices | TP valve (temperature & pressure), Air valve | ||
| Heat Exchanger | Optional internal copper coil (on request) | ||
| Warranty | 5 years | ||
What we offer?
OEM & ODM Manufacturing Support
Private Label Production
Space-Saving Wall-Mounted Design
Pressurized (0.7 MPa Working Pressure)
Electric Heating Element Options
Compact Size for Tight Spaces
Custom Project Solutions
Custom tank capacities, dimensions, connection positions, and electrical specifications available for OEM customers and project requirements.
Recommended Applications:
Apartments and condominiums
Small homes with limited floor space
Bathroom or kitchen installation
Pre-heat tank for solar thermal systems
Heat pump buffer tank
Business Value
Source tanks for your own system assembly. Custom specs available.
Product Comparison
How the System Works?
As a Solar Pre-Heat Tank
Cold water enters the wall-mounted tank first. The tank is connected to solar collectors which pre-heat the water. Pre-heated water then flows to the main water heater (or the tank's own electric element brings it to the final temperature).
As a Heat Pump Storage Tank
The wall-mounted tank stores hot water produced by a heat pump. The tank's insulation keeps the water hot until needed. The electric element acts as backup for high-demand periods.
As an Electric Water Heater
The tank works as a standard electric water heater with thermostat-controlled heating. Compact size fits where a full-sized tank cannot.
Manufacturing & Supply Capabilities
Integrated Manufacturing Resources
- 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
- Standalone tanks
- Tanks with electric heating element installed
- Complete system packages
- Private label / custom branding
- SKD/CKD components supply
Technical Resources Center
Frequently Asked Questions
We work systematically to integrate corporate responsibility in our core business and make our expertise available for the benefit of the societies where we operate.
Do you offer OEM service?
Yes. We make tanks for your brand. Tank size, connections, heating elements, and packaging — all customizable.
What sizes are available for wall-mounted tanks?
Standard capacities from 30L to 200L. Custom sizes available for OEM projects.
Can the tank be used without solar?
Yes. The tank works as a standard electric water heater with its own heating element.
Is the tank pressurized?
Yes. Working pressure is 0.7 MPa (7 bar). Test pressure is 1.2 MPa (12 bar).
What materials are used for the inner tank?
SUS304 or SUS316 stainless steel. You choose based on your water quality and budget.
How is the tank mounted?
A steel wall-mount bracket is included. The bracket fixes to the wall with anchor bolts, and the tank hangs securely on the bracket.
What support do you provide?
Product documents, installation guides, dimension drawings, and project support.
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