Instant & Endless & Customizable Tankless Water Heater
- Customizable power (kW) or flow rate (GPM) for any application.
- Ultra-thin electric designs and compact gas units.
- Heats water only when needed, eliminating standby energy loss and reducing operating costs.
- Certified for international markets (CE, UL, etc) with multiple safety protections.
- From concept and design to mass production and global delivery
Your Reliable Tankless Water Heater Manufacturer
As a leading tankless water heater manufacturer with over 20 years of experience, Haoha provides comprehensive OEM/ODM services for electric and gas tankless water heaters. We have supported global brands in Europe, Asia, the Middle East, and Africa to succeed in their markets with reliable, high-performance products.
Our tankless water heaters deliver instant heating, precise temperature control, and endless hot water. Whether you need an ultra-thin electric model for apartments or a high-capacity gas unit for hotels, we engineer each system for long-term reliability and compliance with local standards. Within 12+ automated production lines and manufacturing bases in China and Morocco, we ensure stable capacity, strict quality control, and fast delivery to grow with you.
Electric Tankless Water Heaters Category by Different Power
We customize the electric tankless water heaters with different power as your requirements.
Compact and efficient, ideal for point-of-use applications like handwashing sinks in kitchens, or bathrooms.
Ideal for small apartments or residential bathrooms that require a single shower. Delivers stable and reliable hot water with fast and stable heating.
Suitable for family homes within 1-2 simultaneous showers or medium-demand usage.18kW ~ 24kW provides stable hot water supply with precise temperature regulation for multiple fixtures.
Designed for larger households or light commercial applications that require higher flow rates. High-efficient hot water supply with advanced temperature stability.
Gas Tankless Water Heaters Category by GPM & Flow Rate
Different applications have different needs of GPM & Flow rate, we customize the gas tankless water heater as your requirements.
Ideal for one-bathroom homes, providing a balanced solution for daily residential hot water needs with stable performance and optimized energy efficiency.
Support one shower plus additional fixtures simultaneously, delivering consistent hot water for family households.
Designed for medium to large homes with multiple bathrooms that offer strong and reliable hot water supply for simultaneous operation of several fixtures.
Commercial-grade solution built for high-demand environments such as hotels, gyms, and restaurants, providing continuous, high-volume hot water with durable performance.
Why Choose Our Gas Tankless Water Heater?
Haoha provides full OEM/ODM service for your product with advanced water heating technology.
On-demand heating delivers continuous hot water whenever you need it.
Advanced gas combustion technology reduces energy waste and lowers.
Wall-mounted, tankless structure frees up valuable indoor space.
Produce hot water instantly, eliminating preheating time and standby heat loss.
Intelligent temperature control ensures consistent hot water, even during multi-point use.
Consume gas only when hot water is needed. Reduce long-term energy expenses.
Multiple built-in safety systems including flame failure, overheat, and anti-freeze protection.
No storage tank means less corrosion and scale buildup, extending product lifespan.
Advanced Instant Heating Technologies for Every Market
We integrate the latest innovations to ensure your tankless water heater delivers top-tier performance, efficiency, and durability. We provide copper heating chamber (CHC) technology to provide stable, durable, and cost-effective heating. Thick film heating (TFH) enables an ultra-thin, space-saving design with rapid, efficient, and quiet operation. Multiple smart sensors ensure precise temperature control within ±0.5°C for consistent comfort. And high-efficiency heat exchangers, low-NOx combustion systems, and advanced safety protections.
Flexible OEM/ODM Customization from Concept to Production
From inside components to outer casing, control panel interfaces, and smart features such as Wi-Fi connectivity, we customize every detail of your tankless water heater. Our professional R&D team works closely with you throughout the process of OEM/ODM. Whether you’re looking for branding customization or developing a completely new model from the ground up, our manufacturing capabilities ensure your requirements are accurately turned into reliable products, ready for global markets.
Tankless vs. Tank: The Clear Advantage
Tankless water heater offers significant benefits over traditional storage tank water heaters such as endless hot water, energy consumption reduction, space-saving, long lifespan and low maintenance demands. Compared with tank water heater, tankless model requires less or low maintenance. It provide the flexible installation for various applications.
Yes. With proper freeze protection and designed for stable gas pressure, our gas tankless models are proven to perform well even in North European and Canadian winters.
We provide long-lasting tankless water heaters for residential and commercial use. With proper maintenance, our gas tankless water heaters typically last 15-20 years or more.
Please share your specifications such as target market, preferred energy type (electric or gas), required capacity (kW or GPM), certification needs, and any branding or design specifications. We can also help develop concepts from your initial ideas.
Yes. Our tankless water heater has a compact design and clear connection layout. For most applications, installation by a qualified electrician or plumber is quick and efficient. Detailed installation instructions and technical support are provided
Tankless water heaters are wall-mounted and compact, saving up to 70% of floor space compared to traditional storage water heaters.
For a small apartment, a 3.5-13kW electric tankless water heater is ideal. Compact and wall-mounted, it delivers instant hot water for a shower or sink, saves space and reduces energy costs.
Yes. 18-24kW electric or 7-8 GPM gas tankless water heaters can supply 2 showers at the same time. High-capacity models support multiple bathrooms or light commercial use.
