18 Kw Double Heat Exchanger Combi Wall Hung Gas Boiler

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: 18 kw
• Certification: EAC, TUV, GOST, ISO9001, ROHS, CE
• Heating Type: Water Heating Systems
• Open Therm: Optional
• Structure: Plate Exchanger / Bithermic
• Water Hydraulic: Plastic / Brass
• Low Voltage Start: Yes
• Low Pressure Start: Yes
• Control Mode: Knobs and Buttons
• Description: Central Heating Hot Water Boiler
• Function: House Heating and Hot Water Supply
• Type: Wall Hung Double Circuit Gas Boiler
• Installation: Wall-Mounted Gas Boiler
• Feature: Two Heat Exchanger
• Usage: Kitchen, Bathroom, Balcony
• Type of Gas: Natural Gas (Ng) / Liquefied Petroleum Gas (LPG)
• Category: Combination Boiler (Combi Boiler)
• Heat Exchanger Type: Oxygen-Free Copper
• Transport Package: Carton
• Specification: 18kw 24kw 28kw 32kw 36kw 40kw 45kw 50kw
• Trademark: OEM
• Origin: China
• HS Code: 8403109000
• Production Capacity: 200, 000PCS/Year
• Package Size: 81.00cm * 50.00cm * 31.00cm
• Package Gross Weight: 32.000kg

Product Description

Wall mounted combi non-condensing gas boiler with closed chamber

Our wall hung combination gas boiler delivers instant hot water and efficient central heating. Ideal for homes and apartments, it eliminates the need for a water storage tank, saving space and reducing energy waste. With 92%+ thermal efficiency,this is the perfect eco-friendly gas heating solution for modern households.

Specification

Technological Advantage

(1) Gas adaptive:
300-3000pa gas pressure adaptive start
(2) Voltage adaptive:
160v-280v voltage low or high fluctuation adaptive
(3) Water pressure adaptive:
Automatically adjust the stable water outlet temperature according to the water flow
(4) Hot water comfort:
The self-adjustment function of adaptive technology better solves the stability of shower hot water
(5) Energy saving and gas saving:
A-level energy efficiency
(6) Low noise design:
Built-in fluid mechanics silencer, silent operation, no sleep disturbance
(7) Drawer-type air filter:
Extend the machine maintenance time and reduce maintenance costs
(8) Rainwater collector:
Prevent rainwater backflow, burn core components, better protect the boiler
(9) Smart Internet of Things:
Mobile phone WIFI remote control, one-click view of gas consumption

Strong R&D Capabilities

Our product lineup includes:

-Single circuit gas boilers for heating-only applications

-Dual circuit gas boilers for combined heating and domestic hot water

-Compact mini boilers, ideal for space-saving installations

-Cascade systems with multiple boilers connected in parallel for higher capacity demands

-High power wall mounted gas boiler up to 150kw for villa and commercial buildings

-Floor standing condensing gas / steam boiler for industrial or commercial use, such as schools, office buildings, shopping malls, etc.

-Segmented combustion and Modulated combustion technology for enhanced energy efficiency

-The self-developed PCB makes the product more flexible to use and is convenient for installation and maintenance

Parameters

Model		18kw	20kw	24kw	28kw	32kw	36kw	40kw	45kw
Gas Type		NG / LPG
Gas Pressure	Pa	2000
Rated max./min. heat load of CH	kw	18/6.3	20/7	24/8.5	28/9.8	32/11.2	36/12.6	40/14	45/16.5
Rated max./min. heat output of CH	kw	16.5/5.5	18/6.1	22/7.2	25.5/8.3	29.3/9.5	32.4/10.7	36/11.9	40.9/14.3
Rated heat load of DHW	kw	18	20	24	28	32	36	40	45
Rated min. heat load of DHW	kw	3.1	3.1	3.5	3.9	4.5	5	5.6	6.3
Rated min. heat output of DHW	kw	2.6	2.6	3	3.3	3.9	4.2	4.7	5.3
Ignition power	kw	10	12	14.4	16.8	19.2	21	21.6	24.5
Thermal Efficiency (At rated input power)	%	92	92	92	92	92	92	92	92
Max. water pressure of CH system	MPa	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3
Min./Max. CH Water Temperature	°C	30/80	30/80	30/80	30/80	30/80	30/80	30/80	30/80
Rated Water Capacity (Δt=25℃)	kg/min	8.3	10.3	12.6	14.6	16.8	18.6	20.6	23.2
Expansion Tank Volume	L	6.5-8	6.5-8	6.5-8	6.5-8	8-10	8-10	8-10	8-10
Voltage/Frequency	V/Hz	220/50	220/50	220/50	220/50	220/50	220/50	220/50	220/50
Reference gas consumption (NG 12T)	m3/h	0.65-2	0.75-2.15	0.91-2.58	1.05-3	1.2-3.43	1.33-3.81	1.58-4.28	1.72-4.65
Heating Area	m^2	65-110	70-120	90-150	120-200	160-260	200-310	250-360	290-420
N.W/G.W	kg	27/29	27/29	27.5/29.5	32/36	32/36	37.5/42.5	38.5/43.5	43.5/48.5
Product Dimension (LxWxH)	mm	690X417X243			690X417X325		710X420X345		740X580X325
Packing Dimension (LxWxH)	mm	805X495X310			810X490X410		810X490X410		840X650X410

Company Profile

About Us

With 28000+ m² Factory Area, we are a leading high-tech enterprise specializing in the production of advanced heating equipment, including gas / electric heating systems, modular boilers, and intelligent control systems. With state-of-the-art automated production lines and laboratory, we provide innovative, efficient, and sustainable heating solutions tailored to meet the highest industry standards.

 

Our expertise covers vector variable frequency low nitrogen heating systems, ASC (Adaptive System Control) technology and fully premixed condensing boilers, making us a trusted partner for smart heating solutions around the world.

Advanced Production & Testing: 

Strict Quality Control: 

Proprietary Technologies: 

Equipped with the most advanced automatic production lines and testing equipment, ensuring top-tier product quality and reliability.

With an annual production capacity of 200,000 units gas / electric heating boilers and 3,000 units fully premixed condensing low-nitrogen commercial boilers.

To ensure uncompromising quality, we operate a dedicated incoming inspection lab and aging simulation lab.

Every component undergoes years of accelerated durability testing under extreme conditions – only those that meet our stringent standards are approved for production.

Possessing a number of invention patents, mastering the core technologies of vector variable frequency low nitrogen, Adaptive System Control function, and full premixed condensing boiler.

Participated in the major drafting and compilation of multiple national standards and industry standards

More Products

13 kw - 50 kw	24 kw - 150 kw	350 kw - 1400 kw

Packaging & Shipping

Foam Anti-collision

Container Loading

Warehouse

FAQ

Q: What's the lead time for orders?
A: It will take 30–45 days.
 
Q: What's the warranty and after sales service?
A: We provide 1 year warranty,and our engineers can provide online guidance .

Q: What types of boilers do you offer?

A: We specialize in a wide range of heating equipment, including gas boilers, electric boilers, condensing boilers, combi boilers, and modular boilers. Our products are designed for both residential and commercial use, ensuring high efficiency and reliability.

 

Q: What is the lifespan of your boilers?

A: Our boilers are built to last, with an average lifespan of 15-20 years when properly maintained. We use high-quality materials and simulate real environment aging test to ensure durability and long-term performance.

 

Q: How can I request a quote?

You can easily request a quote by email, WeChat or WhatsApp. Provide your requirements, and our team will prepare a customized quotation for you.