Everything you need to know about instant electric water heaters, OEM manufacturing, and importing from China
About the manufacturer
PAMTTON (Zhongshan Pinteng Electric Appliance Industrial Co., Ltd.) is a leading instant electric water heater manufacturer based in Zhongshan, Guangdong, China. With CE and RoHS certified products, OEM/ODM capabilities, and a monthly capacity of 50,000+ units, PAMTTON serves B2B clients across South America, Southeast Asia, the Middle East, and Africa.
PAMTTON's factory is located in Zhongshan, Guangdong Province, China — one of China's major home appliance manufacturing hubs. The full address is:
Room 5, 2nd Floor, Building A, No.18 Jianye Road, Nantou Town, Zhongshan, Guangdong, China
Zhongshan is adjacent to Shenzhen and Guangzhou, providing convenient access to major shipping ports for export. The nearest ports are Shenzhen Yantian Port and Guangzhou Nansha Port.
PAMTTON's factory has a monthly production capacity of 50,000+ units. Our production line includes:
Assembly line for instant water heater units
Heating element manufacturing and testing
PCB programming and quality control
100% electrical safety testing station
Water pressure testing facility
Packaging and labeling line
Lead time is 25-35 days for standard orders, 20-25 days for repeat orders.
Products & technology
Instant (tankless) water heaters heat water on demand as it flows through the unit, eliminating the need for a storage tank. Key differences:
Instant water heaters save 30-40% energy compared to storage heaters because:
No standby heat loss: Storage heaters continuously reheat water to maintain temperature, wasting energy even when not in use. Instant heaters only activate when hot water is needed.
On-demand heating: Water is heated only for the duration of use (typically 10-15 minutes per shower), not 24/7.
High efficiency heating elements: PAMTTON uses bare wire heating elements with 98%+ thermal transfer efficiency.
No tank maintenance: Eliminates energy costs associated with tank insulation and anode rod replacement.
OEM (Original Equipment Manufacturer): The buyer provides design specifications and the manufacturer produces to those specs. The buyer's brand goes on the product. Example: You send us your water heater design, we manufacture it with your logo.
ODM (Original Design Manufacturer): The manufacturer designs the product and the buyer selects from existing designs, customizing branding and minor features. Example: You choose from our P1/DF/S1/A/X2/B series, we add your logo, packaging, and any color changes.
PAMTTON offers both OEM and ODM services. For most buyers, ODM is faster and more cost-effective since the product is already designed and certified.
The minimum order quantity (MOQ) depends on the level of customization:
ODM (existing model, custom branding): 500 units per model
OEM (custom specifications): 500 units per model
New mold development: 1,000+ units
Custom color/packaging only: 200 units (negotiable)
PAMTTON offers flexible MOQ negotiation for first-time buyers. Contact us to discuss your specific needs.
Production lead time:
Standard ODM order: 25-35 days from deposit receipt
Repeat order (existing specs): 20-25 days
OEM with new specifications: 35-45 days
New mold development: 60-90 days
This includes component procurement, assembly, 100% quality testing, packaging, and pre-shipment inspection. Shipping adds 15-30 days by sea freight depending on destination.
PAMTTON offers extensive customization for OEM/ODM clients:
Branding: Custom logo on unit, packaging, and manual
Colors: White, black, or custom color matching
Display: LED, LCD, or mechanical knob controls
Power rating: 5500W, 7500W, or 8500W configurations
Accessories: Choose shower head style, flow valve type, anti-electricity wall