What Can You Customize?
For a gas tank water heater, we can customize the inner water tank material that is the beginning of building a tank water heater. You can choose glass-lined tanks or stainless steel tanks depending on corrosion resistance requirements. Custom capacities ranging from 50L to 2000L to meet residential, commercial and industrial demands. Besides, we also provide free CAD design for you to help you design what you need. We also customize the capacity of your water tank inside water heaters for you. Not only for these, your logo, packing box, and control system are all can be customized in Haoha. You provide the concept, our team handles the full product development process

Your Reliable Gas Tank Water Heater Manufacturer
With over 20 years of experience in water heating systems, Haoha always provides reliable gas tank water heater solutions for our customers. More than 12 automated production lines in Haoha build strong inner water tanks to ensure your gas tank water heaters have the premium quality. We output over 1,000,000 units for annual production capacity with 12 manufacturing sites. More and more customers choose to trust Haoha as their business partners.
Since we have our own steel factory for the raw materials of inner water tanks, we can control the quality starting from the basic components. Meanwhile, you can customize your inner water tank’s materials, with stainless steel and glass-lined options available. In addition, the water tank capacity is also customizable from 50L – 2000L for any scenario you need. We always use our premium-quality and high customizability to help customers succeed in their markets worldwide.
Types of Gas Tank Water Heaters
A typical natural gas hot water heater tank features a glass-lined or stainless steel inner tank designed to resist corrosion and extend service life. The enlarged flue design improves heat exchange efficiency and ensures stable combustion performance, and the use of immersion thermostat, high temperature limiter and temperature/pressure safety valve offer more safety features to be safely operated.
Low nitrogen emission models are designed to meet strict environmental regulations in many international markets. These units offer cleaner combustion, reduced emission, and quieter operation.
The regular style type gas tank water heater also utilises a natural venting system; therefore, it is very cost-effective, structurally sound and with wide compatibility.
The regular style type gas tank water heater uses a natural venting format, and it is very economical in cost, and is structurally sound and has wide applicability.
Gas tank water heaters, which are a type of storage are run in a mode of operation where the water is stored and insulated with gas heating. They are mature and long lasting in nature, thus supplying a constant flow of ample amounts of water to satisfy domestic demands including hot water.
Capacities of Gas Tank Water Heaters
We customize the gas tank water heaters by different capacity as your requirements. Compared with other systems, a tank gas water heater can provide a continuous supply for hot water for multiple users at the same time. The water heater tank gas design ensures stable temperature and efficient energy usage.

The standard size of the gas tank water heater is 340L; others can be ordered depending on the request. It has a high thermal efficiency and is meant to be installed on the floor, and is designed to be used outside.

The standard size of the gas tank water heater is 420L; others can be ordered depending on the request. It has a high thermal efficiency and is meant to be installed on the floor, and is designed to be used outside.

The standard size of the gas tank water heater is 450L; others can be ordered depending on the request. It has a high thermal efficiency and is meant to be installed on the floor, and is designed to be used outside.

The standard size of the gas tank water heater is 500L; others can be ordered depending on the request. It has a high thermal efficiency and is meant to be installed on the floor, and is designed to be used outside.
The Features Why You Choose Us
Get your gas tank water heater solutions in Haoha. We help you create from zero to product. Your business success is ready when you are.

Get hot water instantly by our efficient gas heating system.

Designed for high efficiency and energy-savings to meet your customers needs.

Low emission supports a greener economy worldwide.

Choose the tank size that fits your markets, we build mold for you.

With durable performance and reliable hot water supply.

Multiple safety protection systems, from inside to out.

Global manufacturing sites across China and Morocco.
Support Green Economy with Our Eco-Friendly
With lower emissions and high efficiency, our gas tank water heaters support a green economy by reducing energy consumption while delivering reliable hot water. Customers provide the ideas, then we are responsible for full OEM/ODM work. We offer reliable gas tank water heaters with energy-saving systems based on your requirements. Our solutions meet global certifications in most countries, such as 3C, CE, RoHS, Solar Keymark and ISO etc.


Strict Quality Control For All Your Gas Tank Water Heater
Every gas water heater manufactured by Haoha undergoes rigorous quality inspections. After fabrication, each inner tank must pass two pressure tests and one pulse test before being approved for use in gas tank water heater production. Finished gas tank water heaters undergo gas tightness testing and leakage protection testing to prevent gas leaks and electrical leakage, ensuring product quality.
How We Build a Gas Tank Water Heater?


We build the inner water tank with high-quality raw materials by our robotic welding line to avoid human-factor differences. Glass-lined and stainless steel as the inner water tank materials options for you. Top-quality copper heating element equipped inside gas tank water heater to higher thermal efficiency, longer service life, and premium reliability. After every stage during the production, we control the quality to eliminate risks caused by any manufacturing errors or differences.
Our Gas Tank Water Heater Product Series
We offer complete OEM/ODM customized solutions for every scenario for you because we specialize in manufacturing & designing gas tank water heaters. Our gas water heater tank systems are designed to deliver stable and efficient hot water for residential, commercial, and industrial applications. A gas water tank heater stores heated water in an insulated tank, ensuring a reliable supply whenever hot water is required. Our gas tank water heater also featured instant water heating functions for you.

Gas tank water heater model for residential use, offering stable hot water and durable performance with our premium-quality inner water tank inside.

We can customize the large capacity gas tank water heaters for commercial use with high-quality hot water supply service.

Some industrial scenarios need a stable hot water supply for the production process. Our industrial gas tank water heater model is suitable for various industrial requirements.
We like to manufacture the gas tank water heaters quickly at Haoha. The routine products typically need 3-5 days, and the custom products need 7-10. But shipping speed is a little slow; it might take around a month.
Our factory can manufacture the pressure relief valve. If you need other hardware, we can purchase it from our suppliers at the lowest price delivered with your gas tank water heaters.
We recommend that the gas tank water heater’s installation method be an outdoor landing. Because the gas tank water heater covers a large area.
We offer multi-energy solutions on gas tank water heaters as your needs, such as gas + electric or gas + solar + heat pump.
Our gas tank water heaters model support for most types of gas such as LPG, natural gas, or other regional gas standards, it depends on your requirements.
Yes. We offer 50L, 60L, 100L, 120L, 150L, 300L, 500L, 1000L, 2000L size for general options. But we actually can customize any of your required capacity.
A gas tank water heater is a storage-type hot water system that heats water using natural gas or LPG and stores it inside an insulated tank for continuous hot water supply.
A gas burner heats the bottom of the storage tank, transferring heat to the water inside. Cold water enters through the inlet pipe while heated water is stored in the insulated tank until needed.
Yes. Many large-capacity gas tank water heaters are designed for outdoor floor-standing installation, depending on the ventilation and safety requirements.










