Water heater — power 20000, material Powder Coated Steel. The complete factory specification follows. Made by Zhongshan Hobun Electric&gas Appliances Co., Ltd. (18 years on the platform, factory-assessed). Send your target quantity and destination for a firm quotation with current lead times.
Key Features of This Water Heater
- Model Number: L1PB20-A
- Power (W): 20000
- Power Source: Electric, Gas
- Power: 20KW
- Housing Material: Metal
- Material: Powder Coated Steel
Technical Specifications
| Gas Type | Natural Gas |
|---|---|
| Storage / Tankless | Instant / Tankless |
| Application | Household, Commercial, Hotel |
| Volume (Litre) | 8 – 12 L(2.11-3.17gal) |
| Smoke Extraction Method | Forced Exhaust Type |
| Power (W) | 20000 |
| Heat Exchanger | Copper |
| Method Ignition | Electronic Ignition |
| Installation | Wall-mounted |
| Housing Material | Metal |
| Warranty | 1 Year |
| After-Sales Service Provided | Free Spare Parts |
| Operating Language | English |
| Display Type | LED Display Screen |
| App-Controlled | Yes |
| Power Source | Electric, Gas |
| Private Mold | No |
| Logo/Graphic Design | Silk Screen Printing |
| Packaging Types | Corrugated Box, Color Box |
| Place Of Origin | Guangdong, China |
| Brand | Haobang |
| Model Number | L1PB20-A |
| Product Name | China 20KW 24KW 28kw domestic boiler gas water heater |
| Usage | Household Heating & Shower water |
| Material | Powder Coated Steel |
| Power | 20KW |
| Key Words | Wall Mounted Gas Boilers |
| Exhaust Type | Balance Constant Temperature |
| Function | House Heating & Shower |
| Color | White |
| MOQ | 50 Pcs |
| Selling Units | Single item |
| Single Package Size | 83X47X39 cm |
| Single Gross Weight | 24.0 kg |
Product Details






Model | L1PB20 | L1PB24 | L1PB28 | ||||
Gas Type | NG(natural gas ) | ||||||
Rated Gas Pressure | 2000Pa | ||||||
Working gas pressure | 1500-3000Pa | ||||||
Gas flow(standard ressure)(m2/h)(max heat load) | 2m2/h | 2.4m2/h | 2.8m2/h | ||||
Heating system | Rated Heat Input(KW | 20 | 24 | 28 | |||
Rated Heat Output(KW) | 17.8 | 21.3 | 24.9 | ||||
Min. Heat Input(KW) | 8.2 | 9 | 9.4 | ||||
Min. Heat Output(KW) | 7.3 | 8 | 8.4 | ||||
Heating water temperature range | 30℃-80℃ | ||||||
Max pressure | 0.3MPa(3bar)(80℃) | ||||||
Expansion tank | 6L | 6L | 7L | ||||
Max water flow | 145L(80℃ 0.3MPa) | 145L(80℃ 0.3MPa) | 165L(80℃ 0.3MPa) | ||||
Shower system | Rated Heat Input(KW) | 20 | 24 | 28 | |||
Hot Water Capacity with T=30℃ | 8.3kg/min | 10kg/min | 11.6kg/min | ||||
Working water pressure | 0.015-0.4Mpa(3 bar) | ||||||
Heating water temperature range | 30℃-60℃ | ||||||
Pipe connection | Gas Input | G3/4'' | |||||
Heating water input | G3/4'' | ||||||
Heating output | G3/4'' | ||||||
Cold water input | G1/2'' | ||||||
Shower hot water output | G1/2'' | ||||||
Heating reference area(m2) | ≤120 | ≤150 | ≤200 | ||||
Max electric power(W) | 120 | 120 | 140 | ||||
Voltage/Frequency | 220V/50Hz | ||||||
Electricity And Water Protection Grade | IPX4D | ||||||
Exhaust pipe(mm) | 60mm(outlet)/100mm(inlet)( 1m length) | ||||||
Product Dimensions(mm) | 740*410*313 | ||||||
Packing Dimensions(mm) | 830*470*390 | ||||||
N.W/G.W(kg) | 31.5/34 | 32.5/35 | 33.5/36 | ||||
Container Qty (20GP/40GP/40HQ) | 155/310/350 | ||||||






























Q1 : Are you manufacture or trading company?
We are a manufacturer specializing in gas water heater, gas stove , gas boiler, established in 1997
Q2 : What is your MOQ?
100pcs/per model
Q3 : How long you can offer a sample for my inspection?
Depends on models, Sample 5-20days
Q4 : Is OEM is acceptable?
Yes, OEM is welcome.
Q5 : What is the delivery time?
The delivery time is 30-35 days after order was confirmed and received deposit.
Q6 : What is your payment term?
T/T 30% deposit in advance 70% balance against the copy of B/L
Shipping port : Zhonshan/Guangzhou/Shenzhen
More question please contact us!!!
Ordering and Pricing
- Minimum order quantity: 50 piece
- Volume pricing:
- 50–299 piece: US $185 / piece
- 300–999 piece: US $175 / piece
- 1000+ piece: US $170 / piece
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this water heater?
The standard minimum order quantity is 50 piece. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a 1 Year warranty. Spare parts and technical support remain available after the warranty period.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Zhongshan Hobun Electric&gas Appliances Co., Ltd., based in China. The company 18 years as a verified Alibaba.com supplier, operates its own manufacturing, passed third-party supplier assessment. Browse the full Zhongshan Hobun Electric&gas Appliances Co., Ltd. range on HVACR Nexus.
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