Zhongshan Anto Electric Appliance Co., Ltd. is one of the leading manufacturers and suppliers of large storage electric water heater - bulk oem & factory direct supply in China, also supports customized service. Welcome to wholesale cheap large storage electric water heater - bulk oem & factory direct supply made in China here and get quotation from our factory. Quality products and low price are available.
Why Procurement Teams Choose Our Storage Water Heater
Selecting the right commercial storage water heater for a large project requires balancing thermal efficiency, regulatory compliance, supply-chain reliability, and total-cost-of-ownership across dozens or hundreds of installed units. Our product family has been purpose-developed to remove friction at every stage of that process.
1. Wholesale Pricing and Minimum Order Quantity
We operate a tiered pricing structure designed specifically for import distributors and project contractors. Our standard MOQ is 50 units per SKU, with volume pricing thresholds at 100, 300, and 500-unit increments. For consolidated container orders (typically 400-600 units of mixed capacity), we offer ex-works pricing benchmarked 12-18% below comparable products sourced through trading intermediaries.
Spot orders for catalogue models ship within 7-10 business days. Bespoke or high-volume orders require a 20-30 day lead time for dedicated quality inspection and documentation preparation.
2. OEM and ODM Customisation Capabilities
Our in-house engineering team supports full OEM and ODM development. Customisation options span:
- Branding and Aesthetics: Custom logo, colour-matched RAL finishes, private-label packaging and bilingual user manuals
- Technical Specifications: Voltage variants (110V / 220V / 240V), thermostatic precision, element wattage (1.5kW - 3kW), digital vs. mechanical control panels
- Connectivity: Optional WiFi module for smart-home integration (Tuya / Google Home / Amazon Alexa compatible)
- Inner Tank Materials: Standard enamel, premium stainless steel 304/316, or glass-lined variants
NDA-protected sample development is available within 15 business days. Mass production tooling is retained at no additional charge for orders above 500 units annually.
3. Certifications and Regulatory Compliance
All units carry full CE and RoHS certification for EU, UK, and EEA markets. Our ISO 9001:2015-certified production facility undergoes annual third-party audits. We can also facilitate SAA/RCM for Australia, SASO/GSO for Gulf markets, SNI for Indonesia, and BIS for India.
4. Production Capacity and Delivery
Our Zhongshan facility operates 6 production lines with a combined monthly output of approximately 18,000 units. Standard shipping: FOB Guangzhou / Shenzhen. CIF available on request. For project orders above 500 units, we routinely structure phased delivery schedules aligned to your installation programme.
5. After-Sales Support
Every commercial account is assigned a dedicated key account manager for pricing, production updates, documentation, and claims management.
- 3-year inner tank warranty (pro-rata replacement for manufacturing defects)
- 1-year full component warranty (heating element, thermostat, safety valve)
- Online troubleshooting library with video guides in 6 languages
- Spare parts programme - key components held in stock for 7 years post-production
- Field defect rate on commercial orders consistently below 0.3%
Frequently Asked Questions - B2B Buyers
Q1. What is the MOQ, and can it be mixed across capacities?
Standard MOQ is 50 units per order. For mixed-capacity orders, minimum per SKU is 20 units with a combined total of at least 50 units. Container-load orders (400-600 units) attract our most competitive pricing tier.
Q2. How long does OEM sample development take, and is there a cost?
Standard OEM samples are delivered within 10-15 business days. A refundable sample fee ($120-$250) is credited against your first production order. Full ODM development requires a separate NRE quotation.
Q3. Which certifications are available, and at what cost?
CE and RoHS certificates are standard and provided free. Additional certifications (SAA, SASO, SNI, BIS) range from $800 to $3,500 depending on the certifying body.
Q4. What are your standard payment and shipping terms?
For new accounts: 30% deposit by T/T, 70% against copy of B/L. Standard shipping is FOB Guangzhou or Shenzhen. CIF available to major ports on request.
Q5. How do you handle quality defects or warranty claims?
Every unit passes hydraulic pressure testing, electrical safety testing, and a functional heat-up cycle before shipment. A photographic claim submitted within 30 days of receipt is processed within 5 business days.
Q6. Can you support phased delivery for large construction projects?
Yes. For project orders above 500 units, we structure phased delivery schedules in 3-4 tranches aligned to your installation programme to minimise warehouse requirements.
Q7. Is the product compatible with hard water regions?
All models include a replaceable magnesium anode rod that actively inhibits limescale and corrosion. For regions with TDS above 500ppm, we recommend our stainless-steel inner tank variant.
Technical Specifications
| Parameter | 30L | 50L | 80L | 100L | 120L | 150L |
|---|---|---|---|---|---|---|
| Rated Voltage | 220-240V AC, 50/60Hz (110V available on request) | |||||
| Rated Power | 1,500W | 2,000W | 2,000W | 2,000W | 2,500W | 3,000W |
| Thermostat Range | 35-75 degrees C (factory default: 60 degrees C) | |||||
| Temperature Accuracy | +/-1 degrees C (digital) / +/-3 degrees C (mechanical) | |||||
| Max Working Pressure | 8 bar (0.8 MPa) | |||||
| Heat-Up Time (cold to 60C) | 28 min | 42 min | 68 min | 85 min | 102 min | 128 min |
| Heat Loss (24h) | Less than 2.5 degrees C/h (80mm PU foam insulation) | |||||
| Inner Tank Material | Enamel-coated steel (stainless steel 304 on request) | |||||
| Anode Rod | Magnesium (26mm x 300mm), replaceable | |||||
| Heating Element | Copper, dry-fire protected | |||||
| Safety Devices | Pressure relief valve (8 bar), thermal cut-off (95 degrees C), anti-electric-wall | |||||
| Inlet / Outlet | G3/4" BSP (adaptors to G1/2" included) | |||||
| Installation | Vertical wall-mount (horizontal available on 80L+) | |||||
| IP Rating | IPX4 | |||||
| Body Colour | White (RAL 9003) standard; custom RAL on request | |||||
| Warranty | Inner tank: 3 years | Components: 1 year | |||||
| Certifications | CE, RoHS, ISO 9001:2015 | |||||
| Carton Qty (40HQ) | 840 pcs | 720 pcs | 620 pcs | 480 pcs | 400 pcs | 320 pcs |




