
Manufacturing Strength
1M+ units annual output by our automated manufacturing

OEM/ODM Capability
In-house engineering team, full product development support

Global Certfications
CE · ISO9001 · RoHS · UL · 3C · Solar Keymark · CB, etc.

On-Time Delivery
Stable supply and fast delivery from our global sites
Product Categories We Offer
We offer a wide range of solutions for water heater, all ready for fully OEM/ODM customization.






Global Certifications & Proven Patents
Our water heaters meets global compliance standards with CE, 3C, RoHS, ISO, Solar Keymark and more to ensure low energy-consumption, premium-quality and high-reliability for your business.
How to Start your Project
- STEP 1Send Requirements & Get QuoteSend your product ideas, specifications, or sketeches with us. We can start it at any node. We'll review your requirements and provide a detailed quotations including price, lead time and MOQ.
- STEP 2Engineering & ProposalTo ensure the best design and cost efficiency, our R&D team will evaluate your requirements and offer optimized solutions such as material recommendations, production feasibility and water tank capability.
- STEP 3Sample ApprovalWe create your water heater prototype or samples based on the approved design. You can test, review, and request adjustments untils the sample meets your expectations.
- STEP 4Production & QCOnce the sample is apporved, we will move to mass production. Our automated lines and strcit quality control processes will ensure consistent performance, durability, and compliance with global standards.
- STEP 5Shipping & DeliveryAfter final QC, products will be packaged and shipped. We offer flexible logistics options including sea, air, and courier shipping to ensure on-time delivery worldwide.

Why Hundreds of Customers Trust HAOHA?
Since 2005, we have focused on manufacturing inner water tanks to support our clients’ water heater premium heart for over 20 years. Building on this expertise, we have expanded into comprehensive water heating system manufacturing to offer complete OEM/ODM solutions for global markets.

Strict Quality Control
300,000 times fatigue test, QC at every step ensures premium-quality water heaters.

Reliable Global Supply
12 Factories in China & Morocco and flexible logistics ensure reliable global supply.

Technical Support Service
24/7 Professional technical teams handle your technical questions.
Our Premium-Quality is Built on Every Step
Our water heater manufacturing always starts from raw material processing. To support our customers' business success easier, we meticulously manage every detial during every stage of production
What Can HAOHA Do?
Customization
We can customize any details you need, such as water tank capacity and even the materials of inner tanks.
Manufacture
HAOHA offers all water heater manufacturing solutions with premium-quality, even if you only need inner water tanks to assemble products in your country.
Logistics Worldwide
Our flexible logistics help us to ship products to all over the world, our Morocco factory ensures fast delivery to Europe, Africa, Middle-East and Americas.
Support & Warranty
Every question you meet is supported by our professional support teams during the whole process of your project. We provide free replacement for product damage during shipping or with quality defects.
How We Provide Premium
Most of customers keep choosing HAOHA as long-term cooperate partner because we provide premium water heater to their business success easier.

Automated Welding
Every inner water tank and water heater at HAOHA factories is built using robotic welding to ensure consistent quality.

Decades of Dedication
With over 20 years of experience in water heater design and manufacturing, we handle every detail design, maintenance, and production.

Long-lasting Tank
Our inner water tanks are manufactured at 860℃ and designed for decades-long durability, ensuring customers’ products operate smoothly.

Global Market
We provide customizable products according to your requirements and market needs, helping customers succeed more easilier.
What Our Clients are Saying
- We are a newly established company. It is very helpful that Haoha accepts small order. At the same time, they offer us the competitive price and great quality to help us business success.
Kwame Adu - We have maintained a five-year partnership with Haoha, who consistently ensure every water heater is delivered on schedule and provide quality inspection reports for each consignment.
John Anderson - We have several water heater suppliers in China, but Haoha stands out as our most satisfactory provider. As a construction company, they frequently offer design recommendations for our project-specific water heaters and make adjustments to suit our products.
Leonhart Schmidt

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