350kw Commercial Gas Boiler for Centralized Heating of School Office Building

• Customization: Available
• Function: Gas Boiler
• Fuel: Gas-Fired
• Model NO.: 350kw
• Installation: Packaged Boiler
• Structure: Water Tube
• Media: Hot Water
• Manufacturing Level: C
• Burning Style: Chamber Combustion Boiler
• Usage: Industrial, Home, Commercial Building
• Energy Efficiency Class: I
• Gas Supply Pressure 12t: 3000 PA
• Nox Emissions: Less Than 25 Mg/Nm³
• Waterproof Protection Level: IP40
• Specification: 350kw
• Trademark: OEM
• Origin: China
• HS Code: 8403109000
• Production Capacity: 1500PCS/Year
• Package Size: 155.00cm * 68.00cm * 130.00cm
• Package Gross Weight: 500.000kg

Product Description

L Series Commercial  Floor Standing Fully Premixed High Efficiency Low Nitrogen Condensing Modular Boiler

Our modular gas floor-standing boiler delivers scalable, energy-efficient heating for large residential complexes, hotels, hospitals, and industrial facilities. Designed with independent module technology, this cascade systems allow multiple boilers connected in parallel for higher capacity demands,the capacity from 350kw(0.5 ton)to 1400kw (2 ton)

Specification

Technological Advantages

1. High Thermal Efficiency (107%)

*The boiler controller optimizes natural gas combustion and fan operation, preventing high-pressure combustion.

*Heating speed adjusts dynamically with energy-saving pressure reduction.

*It avoids the increased wear and efficiency loss caused by frequent start and stop, saves energy and prolongs the service life.

 

2. Eco-Friendly Low NOx Emissions

*NOx emissions <30mg/kWh

 

3. Enhanced Safety

*Adopting the pre-air and natural gas complete premixing technology, there will be no explosion due to improper air-fuel ratio

*Intelligent multiple interlocking control, there will be no mis-ignition command

*The furnace is small, even if there is an explosion, it will not cause harm.

 

4. Quiet Operation (<45dB)

*Built-in burner, while the metal fiber surface combustion is micro-flame combustion, significantly reducing the combustion noise, while reducing flue noise.

*Using a fully premixed variable frequency low-noise fan, the boiler is silenced inside, and the noise is less than 45 decibels.

 

5. Easy Maintenance

*Only 50 cm of maintenance space is required, and the maintenance time does not exceed 30 minutes, which will not damage the integrity of the boiler.

*High reliability, short maintenance time, and can serve as backup for each other when multiple units are heating at the same time, minimizing the heating loss during maintenance.

 

6. Small Size

*The 770KW boiler is only the size of a refrigerator, occupying only 1.3m², with a compact design, modular combination, and multi-unit linkage control.

7. Smart Control
*Smart and simple button operation, simple and reliable operation.
*Compatible with a variety of communication protocols, it can also connect to the host computer and infinite remote communication equipment.
*Run in a graded start mode, automatically control the number of boiler start modules according to the outdoor temperature.
 
8. Climate Compensation
Built-in climate compensation function, according to the outdoor temperature collected by the outdoor temperature sensor and the real-time room temperature monitored by the indoor thermostat, it can calculate and automatically adjust the optimal outlet water temperature at any time and send it to the heat dissipation system
 
9. Long Lifespan (30+ Years)
It is made of alloy steel, which is anti-oxidation and has stronger acid and alkali corrosion resistance than copper and lead. It has been specially treated to prevent scale and has a service life of more than 30 years.
 
10.Low Gas Pressure Start
The gas supply pressure only needs 2Kpa-5Kpa to operate. When the gas pressure is insufficient, the boiler can continue to operate.

Parameters

Model		350kw	700kw	1050kw	1400kw
Rated Heat Input	kW	350	700	1050	1400
Min. Heat Input	kW	70	140	200	280
Rated Heat Output of CH 80/60℃	kW	340	679	1020	1358
Rated Condensing Heat output 50/30℃	kW	367	729.4	1095	1458.8
Exhaust Gas Temperature 80/60°C (Radiator)	℃	<70℃	<70℃	<70℃	<70℃
Exhaust Gas Temperature 50/30℃(Floor heating)	℃	<45℃	<45℃	<45℃	<45℃
Heating Temperature Regulation Range	℃	20-80	20-80	20-80	20-80
Max. Allowable Flow	m³/h	20	40.1	60.1	80.2
Min. Inlet Water Temperature Rise	℃	15	15	15	15
Min. Allowable Flow	m³/h	8.6	17.2	25.8	34.4
Max. Inlet Water Temperature Rise	℃	35	35	35	35
Max. Water-side Pressure Loss	mH20	0.85	1.74	1.69	1.69
Min. Water-side Pressure Loss	mH20	0.45	0.32	0.32	0.32
Average Gas Consumption for CH	m³/h	14.6	29.2	43.7	58.4
CO Emissions	ppm	40	40	40	40
NOX Emissions	mg/Nm³	≤25	≤25	≤25	≤25
NOX Class		5	5	5	5
Product Dimension (LxWxH)	mm	1550*680*1300	1781*1020*1600	2098*1020*1600	2410*1020*1600
Heating Area	m²	3500-9000	7000-17500	10000-25000	14000-35000

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

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

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.