

12L Low Water Pressure Gas Water Heater
12l low water pressure gas water heater for home use is a B2B option for gas water heater installation, OEM/ODM sourcing and export orders. Confirm fuel type, capacity, water pressure, packaging and destination-market requirements before ordering. 12L low-water-pressure gas water heater with copper heat exchanger for residential and export applications where inlet pressure and hot-water demand must be matched carefully. Confirm LPG/NG, water pressure, flow, exhaust, heat-exchanger design, and destination requirements before sampling.
For a technical quote: send the application, measured pressure, fuel, annual quantity, and installation environment.
Place of Origin: China
Minimum Order Quantity: 50 pcs
Payment Terms: L/C, T/T, Western Union
Supply Ability: 30000 pcs per month
Port: Zhongshan, Guangzhou, Shenzhen
Delivery time: By T/T, within 30 days after receiving 30% deposit
12L low-water-pressure flue-exhaust model selection
This page is focused on the listed 12L model within the broader flue-exhaust product range. It is for buyers who need to review water conditions, LPG or natural-gas configuration, flue installation and the required 12L hot-water supply before selecting a final order configuration.
12L model reference
| Selected capacity | Rated heat load | Product size (mm) | Packing size (mm) |
|---|---|---|---|
| 12L | 24KW | 620 × 340 × 180 | 710 × 405 × 230 |
Low-water-pressure selection checks
- Measure incoming water condition at the actual installation.
- Confirm the stated 0.02-0.8MPa operating-water-pressure range against the site condition.
- Confirm LPG or natural-gas configuration and destination-market requirement.
- Check inlet filters, pipework, valves, flue route and service access.
- Confirm whether a zero-water-pressure valve option is required for the final configuration.
12L low-water-pressure FAQ
Is this page a 6-20L product or a 12L model? The product selection on this page is the 12L model; other capacities in the technical table are reference options within the broader series.
Does the stated pressure range guarantee the same result everywhere? No. Final performance must be reviewed against the actual water condition and installation arrangement.
Fuel Type: LP Gas & Natural Gas
Water Pressure: 0.02-0.8MPa
Thermal Efficiency: ≥85%
Heat Exchanger Material: Copper
Ignition Type: Auto Ignition
Power Source: Battery, Gas
Exhaust Way: Flue Exhaust

Features
1. Flue exhaust instant gas water heater;
2. Low water pressure start-up function, big flow rate;
3. White or any color powder coating, SS, glass panel;
4. Fully water-controlled automatic impulse ignition;
5. Flame-out protection;
6. Anti-dry combustion protection;
7. Over-pressure and water drainage anti-freezing protection (optional);
8. Overheating protection;
9. Advanced combustion system with the Winter/summer switch to save energy (optional);
10. 20 minutes auto-off (optional);
11. Colorful LCD temperature display to know water temperature and working status (optional).
Product specification

Product loading quantity
Series | Hot Water Supply L/Min △t 25°C | Rated Heat Load | Product Size(mm) | Packing Size(mm) | Loading Quantity 20GP/40HQ(PCS) |
| 1 | 6L | 12KW | 440*300*120 | 520*335*180 | 900/2150 |
| 2 | 7L | 14KW | 500*300*155 | 610*355*190 | 680/1640 |
| 3 | 8L | 16KW | 520*320*155 | 610*370*205 | 610/1460 |
| 4 | 10L | 20KW | 590*340*180 | 670*405*230 | 465/1070 |
| 5 | 12L | 24KW | 620*340*180 | 710*405*230 | 430/1010 |
| 6 | 14L | 28KW | 650*395*188 | 720*460*240 | 350/840 |
| 7 | 16L | 32KW | 650*395*188 | 720*460*240 | 350/840 |
| 8 | 20L | 40KW | 700*440*188 | 800*490*240 | 290/710 |
Customised service
Heat Exchanger

Valve
Zero-water-pressure valve or Normal water-pressure valve.

Knob and Display Options

Gas Water Heater Factory FAQ
Yes. We are a professional gas water heater factory founded in 1997, with experience in OEM and ODM production.
Our MOQ is 50 pieces per model.
Sample preparation usually takes 10 to 20 days, depending on the model and customization requirements.
Yes. OEM orders are welcome. We can support customized branding, packaging, and product specifications.
The standard delivery time is about 30 days after the order is confirmed and the deposit is received.
Our payment term is T/T: 30% deposit in advance and 70% balance before shipment
WhatsApp: +86 158 7604 6823
12L low-pressure model selection
Low-pressure performance depends on the water system, gas supply, valve, flow detection, heat load, and temperature-rise target. Buyers should share measured inlet conditions instead of relying on a generic low-pressure claim.
Project information
- Minimum and normal water pressure
- Required flow and temperature rise
- LPG/NG and gas pressure
- Exhaust and installation environment
- Heat-exchanger, sample, and parts requirements
Request a 12L low-pressure review: info@kechangwaterheater.com | WhatsApp +86 158 7604 6823





