Electric Boilers for Global Brands
Professional OEM/ODM manufacturer of wall-hung electric boilers for overseas brands, importers, and distributors.
Electric heating & electric combi models, 3–24 kW, up to 99% efficiency.
Electric Boiler Product Range
Two technology paths — electric heating for pure central heating, electric combi for heating plus instant hot water — covering 3 kW to 24 kW output for every cold-climate application.
Water and Electricity Separation Heating System
Die‑Cast Aluminum Heating Element – True Water‑Electricity Separation. ExampleHome electric boiler heating system is designed with a physical barrier between the water circuit and the electrical circuit. Water flows exclusively through a stainless steel tube, while the heating wire is enclosed in a separate insulated layer. The two are cast together into a solid aluminum block, ensuring that water and electricity never come into contact.
Experience the future of safe and durable heating with our advanced water-electricity separation solution.
Aluminum Magnesium Alloy Casting Heat Exchanger
Superior heat conductivity and corrosion resistance
Stainless Steel Water Channel
Reduces limescale up to 50% and prolongs lifetime
Nickel-Chromium Heating Element
Insulated heat-conducting magnesium powder for maximum safety
How to Choose the Right Electric Boiler for Your Market?
Six questions, in order, will take you from "our climate is a bit different" to a shortlist of two or three models.
Climate Zone
How cold does it get?
Extreme cold (-30°C) needs higher output. Moderate cold (0°C to -10°C) can use standard models.
→ Tell us your lowest winter temperature and we size accordingly.
Heating Load
What is the heated area?
Rough rule: 80-100 W/m² for well-insulated homes, 120-150 W/m² for older buildings.
→ Share the floor area and insulation level — we calculate the exact kW needed.
Hot Water Demand
How many bathrooms run simultaneously?
One bathroom: 12-18 kW. Two bathrooms: 20-24 kW. Three+: 28-36 kW.
→ Match capacity in the table below.
Power Supply
What is the local voltage and phase?
Single-phase 220-240V for smaller units (up to 12 kW). Three-phase 380-400V for higher outputs. We configure every unit for your local grid.
→ Tell us your grid specification — we match the electrical design accordingly.
Heat Efficiency
Electric heating or heat pump compatible?
Electric boilers deliver near 99% efficiency with zero flue losses. Compatible with heat pump hybrid systems for even lower running costs in moderate climates.
→ Electric models eliminate flue, gas supply and combustion risks — ideal where gas is unavailable.
Comfort Level
Who is using it?
Families with children and elderly benefit from precise temperature control and anti-scald protection. Smart thermostats add remote control and scheduling.
→ We offer models with OpenTherm, Wi-Fi, and multi-zone control.
Compare Models
The quick reference we send with every quote.
| Model | Power | Best For |
|---|---|---|
| EK-3s | 3 kW | Small studios, single room |
| EK-6s | 6 kW | Small apartments, 1 bedroom |
| EK-9s | 9 kW | Apartments, 1-2 bedrooms |
| EK-12C | 12 kW | Standard homes, 2 bedrooms |
| EK-18C | 18 kW | Larger homes, 2-3 bedrooms |
| EK-24C | 24 kW | Large homes, 3-4 bedrooms |
How an Electric Boiler Works
Four stages from thermostat call to warm radiators — no combustion, no flue, no emissions.
Thermostat Signal
Room thermostat or smart controller detects temperature drop and sends a signal to the electric boiler's control board.
Electric Heating Element
The control board activates the non-immersion heating element(s). Electrical resistance converts nearly 100% of energy into heat with zero flue losses.
Heat Transfer
The heating element transfers thermal energy directly to the water in the primary circuit, raising it to the set flow temperature for radiators or underfloor heating.
DHW Priority (Combi)
In combi models, when a hot tap opens, a flow sensor diverts all heating power to the plate heat exchanger for instant domestic hot water, then returns to central heating.
Thermostat Signal
Room thermostat or smart controller detects temperature drop and sends a signal to the electric boiler's control board.
Electric Heating Element
The control board activates the non-immersion heating element(s). Electrical resistance converts nearly 100% of energy into heat with zero flue losses.
Heat Transfer
The heating element transfers thermal energy to the water in the primary circuit, raising it to the set flow temperature.
DHW Priority (Combi)
In combi models, when a hot tap opens, a flow sensor diverts all heating power to the plate heat exchanger for instant domestic hot water.
Electric Boiler Application Scenarios
Radiator Heating
Wall-hung electric boilers deliver high-temperature water (70-80°C) to traditional radiators, providing fast, responsive heating for homes of all sizes. Compatible with both single-pipe and two-pipe radiator systems. No flue or gas supply needed.
Underfloor Heating
Electric boilers excel with underfloor systems, operating at low flow temperatures (35-45°C) for maximum comfort. Near 99% efficiency with zero flue losses. Ideal for well-insulated new builds and retrofits where gas is unavailable.
Electric Boiler OEM/ODM Manufacturing
Design Customization
- Appearance & panel design
- Capacity & dimension tuning
- Voltage & phase configuration
- Brand logo & label design
Technical Customization
- Heating output per market
- Thermostat & safety device configuration
- Control method (OpenTherm / Wi-Fi)
- Cold climate adaptation
Packaging Customization
- Export-grade carton & foam
- Multi-language manual
- Product certification labeling
- Container-optimized packing
Development Process
- Requirement analysis & spec definition
- Engineering design & sampling
- Sample production & type testing
- Mass production & QC inspection
Electric Boiler Global Certifications
Our electric boilers are certified for major cold-climate markets worldwide.
We work with certification bodies to ensure your products meet local regulatory requirements.
We can also supply sample units and full technical drawings so that you can carry out local testing and obtain certifications in your own market.
Electric Boiler Quality Control System
Our ISO9001 certified quality management system ensures every electric boiler meets strict standards. From raw material inspection to final testing, we maintain 7-step quality control throughout the production process.
Supplier Management
Careful selection and annual evaluation of suppliers to ensure consistency.
Incoming Inspection
All components before entering our warehouse are inspected against specifications.
First Sample Inspection
The first product is inspected before mass production begins.
In-Process Inspection 1
100% inspection of semi-finished products.
In-Process Inspection 2
100% inspection of finished products.
Routine Inspection
Periodic checks are conducted on the production line.
Final Inspection
AQL sampling is performed based on customer requirements before shipment.
Supplier Management
Careful selection and annual evaluation of suppliers to ensure consistency.
Incoming Inspection
All components before entering our warehouse are inspected against specifications.
First Sample Inspection
The first product is inspected before mass production begins.
In-Process Inspection 1
100% inspection of semi-finished products.
In-Process Inspection 2
100% inspection of finished products.
Routine Inspection
Periodic checks are conducted on the production line.
Final Inspection
AQL sampling is performed based on customer requirements before shipment.
Electric Boiler FAQ
About ExampleHome — Electric Boiler Manufacturer
Example Home Appliance Co., Ltd. is a professional electric boiler manufacturer founded in 2011, specializing in wall-hung electric heating and electric combi boilers for cold-climate markets. Our electric boiler product range covers 12 kW to 40 kW output, supporting both single-phase 220-240V and three-phase 380-400V configurations. With ISO9001 certification and international approvals including Certified, ErP, and certification. We serve clients across 30+ countries. Our factory covers 5,000 square meters with an annual production capacity of 200,000 units, providing reliable OEM/ODM services for distributors, importers, and brands worldwide.
Related Guides
Explore our comprehensive guides and resources to learn more about electric boiler selection, installation, and maintenance.
View All GuidesKnow Your Market? Send Us Your Requirements.
Destination country · Climate zone · Heating area · Number of bathrooms · Power supply · Installation type · Target volume. We will come back with two or three models, certifications, MOQ and lead time, usually within one working day.