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Liquefied Gas Boiler

A liquefied gas boiler is a heating system that utilizes liquefied gas—typically Liquefied Petroleum Gas (LPG) or Liquefied Natural Gas (LNG)—as its primary fuel source to generate heat or steam. These systems are designed for high efficiency and clean combustion, producing lower emissions compared to traditional oil or coal-fired boilers. They are widely used in residential, commercial, and industrial settings for space heating, water heating, and industrial process steam generation. Key advantages include their adaptability to locations without natural gas pipelines, consistent fuel quality, and compact storage requirements. Modern liquefied gas boilers often feature advanced safety controls and automation for reliable, energy-efficient operation.

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Description

Liquefied gas boiler

Fuel Types:

LPG: A mixture primarily of propane and butane, liquefied under moderate pressure at ambient temperature and stored in portable cylinders.

LNG: Consists mainly of methane, liquefied by cooling to extremely low temperatures (-162°C), and stored in specialized insulated tanks.

How It Works:

The liquefied gas is vaporized, mixed with air in the boiler's burner, and ignited. The resulting heat is then transferred via a heat exchanger to warm water or generate steam.

Key Definition & Features:

Fuel Type:

Uses liquefied gas (e.g., propane, butane, or LNG) stored under pressure in liquid form but vaporized before combustion.

Common in areas without piped natural gas infrastructure.

Function:

Converts the chemical energy of liquefied gas into thermal energy (hot water or steam) for heating, industrial processes, or power generation.

Types of Liquefied Gas Boilers:

Hot Water Boilers (For central heating & domestic hot water).

Steam Boilers (Industrial applications, food processing, etc.).

Condensing Boilers (High efficiency, recovers latent heat from exhaust gases).

Advantages:

Cleaner burning than coal/oil (lower CO₂ & particulate emissions).

High energy efficiency (especially condensing models).

Portable fuel supply (LPG tanks can be installed remotely).

Applications:

Residential heating (homes, apartments).

Commercial/industrial use (hotels, factories, breweries).

Temporary or off-grid power/heating solutions.

Comparison with Natural Gas Boilers:

Feature	Liquefied Gas Boiler	Natural Gas Boiler
Fuel Storage	Requires pressurized tanks (LPG/LNG)	Connected to gas pipelines
Portability	Yes (good for remote areas)	No (fixed infrastructure)
Efficiency	Similar (condensing models ~90%+)	Similar
Emissions	Lower SOx/NOx than oil	Cleanest (methane-based)

Specification

1. Boiler evaporation: 1 t/h

2. Steam pressure 0.7MPa

3. Steam temperature 170 ℃

4. Feed water temperature 20 ℃

5. The design thermal efficiency is 98%

6. Designed fuel power 7 power supply 380V/50Hz

8. Electric heat pipe power 720 KW

9. Boiler water volume 1.5m3

10. Safe and stable operating condition range of 50 ~ 100%

11. Total power consumption 721.5kw

12. Steel consumption of boiler body 544kg

13. Steel structure consumption of 236.5kg

14. Large boiler transport weight 1061kg

15. Large transportation size of boiler (length × width × height) 2586×1480×1854 mm

PLiquefied Gas Boiler - Technical Specifications

Parameter	Specification	Unit	Remarks
Model	LG-500	-	Customizable
Fuel Type	LPG (Propane/Butane) or LNG	-	Adjustable for gas composition
Capacity	500	kW (or BTU/hr)	Range: 100–10,000 kW
Thermal Efficiency	≥92% (Condensing type)	%	EN 15316 certified
Working Pressure	0.7–3.0 (Hot Water) / 10–25 (Steam)	bar	ASME/CE/PED compliant
Steam Output	700	kg/h	Optional for steam models
Flow Temperature	40–90 (Adjustable)	°C	PID control system
Return Temperature	30–70	°C	For hydronic systems
Fuel Consumption	~36 kg/h (LPG, at 500 kW)	kg/h or m³/h	Varies by calorific value
NOx Emissions	<30 mg/kWh (Class 5)	mg/kWh	Eco-design compliant
CO Emissions	<50	ppm	Continuous monitoring
Dimensions (L×W×H)	1500×800×1800	mm	Compact/Modular design
Weight	450	kg	Varies by capacity
Water Capacity	120	L	Expansion vessel included
Gas Connection	DN25 (1") / Threaded/Flanged	-	Includes pressure regulator
Electrical Supply	220–240V / 50–60Hz / 1-Phase	-	Optional 3-phase for large units
Control System	Digital touchscreen + IoT (optional)	-	Remote monitoring via GSM/WiFi
Safety Features	Flame failure, overheat, low water, gas leak detection	-	Auto-shutdown & alarms
Certifications	CE, EN 297, ISO 9001, EPA/UL (optional)	-	Global standards compliant