6-12L Flue Exhaust Gas Water Heater, front product view, gallery image 1

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6-12L Flue Exhaust Gas Water Heater, product detail view, gallery image 2

6-12L Flue Exhaust Gas Water Heater, product detail view, gallery image 3

6-12L Flue Exhaust Gas Water Heater, product detail view, gallery image 4

6-12L LPG/NG Flue-Exhaust Gas Water Heater Capacity Series

Name: 6-12L Flue Exhaust Gas Water Heater for Residential Hot Water Supply
Brand: KECHANG

6-12l flue exhaust gas water heater for apartments 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. 6-12L flue exhaust gas water heater for household and export applications where the project has a suitable flue route and installation environment. LPG and natural gas options, capacity selection, OEM branding, and export packaging can be reviewed.

Before sampling: confirm flue layout, room ventilation, gas type, water pressure, target flow, and local installation rules.

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

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6-12L flue-exhaust selection for residential hot-water installations

This 6-12L range is for residential buyers who need to select a flue-exhaust tankless heater by required hot-water supply, gas configuration, water condition and approved installation arrangement. Confirm the final model before evaluating packaging or OEM options.

Residential capacity reference

Capacity	Rated heat load	Product size (mm)	20GP / 40HQ quantity
6L	12KW	440 × 300 × 120	900 / 2150
7L	14KW	500 × 300 × 155	680 / 1640
8L	16KW	520 × 320 × 155	610 / 1460
10L	20KW	590 × 340 × 180	465 / 1070
12L	24KW	620 × 340 × 180	430 / 1010

Flue-installation checklist

Confirm an appropriate flue route and local ventilation requirements.
Confirm LPG or natural-gas configuration before selecting the model.
Check wall space, service access, gas and water connection positions.
Review intended water condition against the stated 0.02-0.8MPa operating range.
Choose capacity according to the expected outlet demand.

Residential flue FAQ

Can a 6L-12L model be selected from capacity alone? No. Fuel type, flue installation, water condition and the intended outlet demand must also be checked.

Can the panel and packaging be customized? Confirm the selected model first, then specify the panel, branding, manual and carton requirements for the order.

Gas Water Heater Product Details
Capacity: 6L-12L
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	440300120	520335180	900/2150
2	7L	14KW	500300155	610355190	680/1640
3	8L	16KW	520320155	610370205	610/1460
4	10L	20KW	590340180	670405230	465/1070
5	12L	24KW	620340180	710405230	430/1010
6	14L	28KW	650395188	720460240	350/840
7	16L	32KW	650395188	720460240	350/840
8	20L	40KW	700440188	800490240	290/710

Customised service

Heat Exchanger

Tin-coated copper or Oxygen-free copper optional.

Heat exchanger weight: 0.8～4.0 Kg

Valve

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

Knob and Display Options

Gas Water Heater Factory FAQ

Q1: Are you a gas water heater factory?
Yes. We are a professional gas water heater factory founded in 1997, with experience in OEM and ODM production.

Q2: What is your MOQ?
Our MOQ is 50 pieces per model.

Q3: How long does it take to prepare a sample?
Sample preparation usually takes 10 to 20 days, depending on the model and customization requirements.

Q4: Do you accept OEM orders?
Yes. OEM orders are welcome. We can support customized branding, packaging, and product specifications.

Q5: What is your delivery time?
The standard delivery time is about 30 days after the order is confirmed and the deposit is received.

Q6: What are your payment terms?
Our payment term is T/T: 30% deposit in advance and 70% balance before shipment

.Shipping Ports: Zhongshan, Guangzhou, Shenzhen

For more questions about gas water heater OEM production, MOQ, samples, or delivery, please contact us.
WhatsApp: +86 158 7604 6823

When a flue exhaust gas water heater fits a project

Flue-exhaust models should be selected with the installation environment in mind. Buyers need to know where combustion gases will discharge, whether the room and flue arrangement meet local requirements, and how service access will be maintained.