The 10 Best Offers for Diesel Generators - March 2025

Last updated: 09. March 2025
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1
Best Choice
9.9

  • Advanced Performance: The new and improved Warrior model features increased power and a fully compliant EU5 standard engine with a brushed copper alternator, ensuring steady motor speed for reliable performance at 5500 maximum watts and 5000 running watts for high power
  • Enhanced Convenience: Equipped with a range of features including Automatic Voltage Regulator (AVR) for smooth output monitoring, Wireless Remote Start, and 3-in-1 Intelli Voltmeter for easy operation and control.
  • Quiet and Durable: Enclosed in a soundproof canopy with chip-resistant matt finish, the generator's heavy-duty industrial frame provides full protection. Anti-vibration mountings ensure smooth operation, while the key start facility adds convenience.
  • Long-Lasting Run Time: With a fully fuelled 16-litre tank, this Warrior generator can run for up to 12 hours at 50% load, perfect for a variety of applications including domestic, construction, catering, and industrial use.
  • Ultimate Portability: Featuring wheels for easy transport and a remote start function, this Warrior generator is designed for maximum convenience whether you're on-site or at home. Fitted with a 12v battery charging outlet and 240v and 110v single-phase output sockets for added versatility.
Colour Manufacturer Weight
Copper Warrior Power Equipment -
£1,39999
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2
Best Value
9.9
maXpeedingrods

Free Delivery**
  • 【Multifunction Power Supplier】 Quiet and fuel efficient 4 stroke 145cc petrol generator produces 3300W max watts and 3000W running watts. It is easily able to run the lighting system, RV or a small family home. And run a huge range of high-power appliances such as an air conditioner with 6000 BTU cooling capacity, refrigerators, kettles, and even more appliances at the same time.
  • 【Low noise】When the generator is in ECO mode at 25% load and is 7m away from the generator, the noise level is 58 decibels. which is almost the quietest generator of this rated power. At this noise level, there is little disturbance for users and people nearby. Please note that ambient noise may affect the overall value of the noise of the machine.
  • 【Extra Long Runtime】Runs 8.3 hours at 25% load (750w load) 、4.5 hours at 50% load (1500w load). In ECO mode, the runtime can be extended up to 10-12 hours. Guaranteed power supply overnight.
  • 【Provide Clean Power】This inverter technology provides more steady power, produces clean power to safely operate and prevent damage to sensitive electronics such as phones, tablets, televisions and computers.
  • [Brand Warranty] Maxpeedingrods warrants all the inverter generators against defects in workmanship under normal use for a period of 2 years from the date of retail purchase by the original end-user purchaser ("Warranty Period"), and free lifetime technical support and customer service.
Colour Manufacturer Weight
Orange,black maXpeedingrods 21 kg
£54999
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3
9.9
Monster Shop

  • Effortlessly monitor and control this open frame diesel generator with the intelligent 5 in 1 digital display which shows voltage, current, KW, frequency, and calculated running hours.
  • A fully fuelled 12.5L tank will provide you with consistent power for up to 35 hours making the generator extremely economical.
  • Power multiple devices at once with this high-performance single-phase generator and it’s incredible 2kVA maximum output.
  • Fitted with 4 heavy duty 8” wheels and sturdy fold in/ out handles, this compact machine is extremely easy to transport allowing you to manoeuvre it as required whether on a permanent site or on the move.
  • Built using powder coated steel, the frame is extremely strong and durable to protect the powerful 6HP engine. Although an open design, the generator is remarkably quiet at just 77dB at a 7m range.
Colour Manufacturer Weight
- T-Mech -
£67999
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4
9.8
AIVOLT

Free Delivery**
  • Unique Feature and Multifunction Control Panel - The outstanding design features bright orange appearance and a multifunctional panel including parallel connectability, a standard 230v 3 pin socket, 2 USB charging ports(type-A & type-C), a 12v DC charging outlet. Suitable for TVs, computers, small electric tools and many kitchen appliances.
  • Ultra Lightweight and Low Noise - Only weighs 12kg, and nearly 15% lighter than other same power compact generators. The labor-saving and ergonomic handle is very easy for a young woman to lift. When the generator is at 25% load, it comes with 58 decibels noise at 23 feet that is comparable to the sound of a normal conversation.
  • Pure Sine Wave Power - This inverter generator has a powerful 60cc 4 stroke OHV air-cooled 100% copper winding engine which can produce 1.2kw starting watts and 1.1kw continuous watts steady clean power with very low fuel consumption. Ideal for sensitive electronics such as phones, laptops.
  • Eco Mode & Long Runtime - A fully fueled 2.5L tank will provide you consistent power for up to 10 hours making the generator extremely economical. It runs 8 hours at 25%, 5.5 hours at 50% load, 4 hours at 75% load, 3.1hours at 100% load. In Eco-mode, it even runs more than 10 hours and prolongs generator’s life. Perfect for RV travel, jobsites and home use.
  • The package contains: 1*1200W petrol generator, 1*spark plug wrench, 1*oil funnel, 1*12V DC battery charging cable, 1* screw driver, 1* quick start guide, 1*British plug, 1*manual.
Colour Manufacturer Weight
Orange AIVOLT 12 kg
£26999
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5
9.8
maXpeedingrods

Free Delivery**
  • 【Multifunction Power Supplier】4-stroke petrol generator produces 3500W max watts and 3200W running watts. It is easily able to keep the lighting system or a small family house, power air conditioners and many other small appliances such as refrigerators,coffee machine at the same time.
  • 【Provide Clean Power】This inverter technology provides more steady power, produces clean power to safely operate and prevent damage to sensitive electronics such as phones, tablets, televisions and computers.
  • 【Multi-Function Display】Easy to monitor voltage and frequency power; display remaining fuel, which is suitable for timely fuel change; display cumulative runtime, which is suitable for later generator maintenance; display unique runtime, perfect timer function.
  • 【Lightweight and Powerful Motor】Only 26 kg, small and compact, easy to carry, 223 cc OHV motor with two 230 V ports and a 12 V DC connector, provides plenty of power for multiple tasks.
  • 【Brand Warranty】 Maxpeedingrods warrants all the inverter generators against defects in workmanship under normal use for a period of 2 years from the date of retail purchase by the original end-user purchaser ("Warranty Period"), and free lifetime technical support and customer service.
Colour Manufacturer Weight
Orange/Black maXpeedingrods 26 kg
£33999
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6
9.7
Monster Shop

  • Enclosed by a soundproof canopy, you can be sure this powerful diesel generator will keep noise to a minimum, so it doesn’t disturb you, your neighbours, or employees when in operation.
  • With a built-in ATS, this is a generator you can rely on to supply you with back up power almost at an instant to keep your home or business running smoothly. An optional electric start system allows you to effortlessly turn on the generator manually should you wish to.
  • A fully fuelled 20L tank will provide you with consistent power for up to 16 ½ hours making the generator extremely economical.
  • Power multiple devices at once with this high-performance three-phase generator and it’s incredible 6.5kVA maximum output.
  • Fitted with 4 heavy duty 4” wheels and a sturdy handle, this compact machine is extremely easy to transport allowing you to manoeuvre it as required whether on a permanent site or on the move.
Colour Manufacturer Weight
Black T-Mech 155 kg
£1,29999
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7
9.6
Champion Power Equipment

Free Delivery**
  • Superior power & features - Our Champion Power Equipment 92001i Range of Invertor Generators offer both superior power and outstanding performance. These Inverters are offered in multiple fuel types, are Super-Lightweight and are packed with many great features including True Sine Wave Technology, EZ Start, LED Indicators, , Parallel Connectability, Multiple Outlets and USB Charging
  • Super lightweight & ultra quiet operation - Weighing in at only 17.6Kg, and only 44 x 28.5 x 44.5cm in size, the Mighty Atom is the World's lightest 2kW Inverter Generator meaning that it is both extremely lightweight and portable. The device is also extremely quiet during operation at only 58 dBA.
  • Reliable champion 2200w petrol engine - The Invertor Generator has an EZ Start and comes with a 2200 Maximum Watt (1900 Running Watts) 79cc Petrol Engine that will run up to 10.5 hours on a 4.0 Litres full tank (at 25% load). There is also a handy LED Indicator and Economy Mode to save on fuel as well as an Automatic Oil Shut Off Sensor and 500ml Oil Capacity.
  • True sine wave invertor technology - This technology makes this generator ideal for sensitive electronics such as computers, laptops and TV. Perfect for your next camping trip or powering small household items like fridges/freezers, power tools, lighting units & garden equipment. This inverter has parallel capability allowing you to pair up with other Champion Inverters using an optional Parallel Kit.
  • Includes power outlets & usb adapter - Included with the device are 2 covered 240V 13A Power Outlets and a handy 12v DC USB Adapter you can use to power your phone, laptop, tablet, or similar device. The Parallel Kit (Sold Separately) allows you to pair this up to another Champion inverter for double the power.
Colour Manufacturer Weight
Yellow,black Champion Power Equipment 17.6 kg
£39999
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8
9.5
Excel Power

9
9.4
Warrior Power Equipment

  • Advanced Performance: The new and improved Warrior model features increased power and a fully compliant EU5 standard engine with a brushed copper alternator, ensuring steady motor speed for reliable performance at 5500 maximum watts and 5000 running watts for high power
  • Enhanced Convenience: Equipped with a range of features including Automatic Voltage Regulator (AVR) for smooth output monitoring, Wireless Remote Start, and 3-in-1 Intelli Voltmeter for easy operation and control.
  • Quiet and Durable: Enclosed in a soundproof canopy with chip-resistant matt finish, the generator's heavy-duty industrial frame provides full protection. Anti-vibration mountings ensure smooth operation, while the key start facility adds convenience.
  • Long-Lasting Run Time: With a fully fuelled 16-litre tank, this Warrior generator can run for up to 12 hours at 50% load, perfect for a variety of applications including domestic, construction, catering, and industrial use.
  • Ultimate Portability: Featuring wheels for easy transport and a remote start function, this Warrior generator is designed for maximum convenience whether you're on-site or at home. Fitted with a 12v battery charging outlet and 240v and 110v single-phase output sockets for added versatility.
Colour Manufacturer Weight
Copper Warrior Power Equipment 168 kg
£1,29999
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10
9.3
Excel Power

  • Starting Watts – 3000W / Rated Watts – 2800W
  • Recoil Start with low oil level protection
  • AVR Controlled
  • Large 15L fuel tank
  • 2 x 13A 240V UK 3-pin sockets
  • Noise Level – 66dB(A) @ 7m
  • Covered by a 2 Year Warranty
Colour Manufacturer Weight
Red/Black Excel Power Generators 39 kg
£22999
Amazon
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General information about Diesel Generators:

Understanding Diesel Generators: A Comprehensive Overview

Introduction to Diesel Generators

Diesel generators play a crucial role in powering various industries, homes, and establishments worldwide. They are reliable and efficient sources of electrical energy, especially in areas without access to a stable electricity grid. These generators employ diesel fuel combustion to generate electrical power, making them ideal for both backup and primary power supply.

Overview of Diesel Generators

Diesel generators consist of three primary components: an engine, an alternator, and a control panel. The engine is responsible for converting the potential energy stored in diesel fuel into mechanical energy. This energy is then used to power the alternator, which converts it into electrical energy. The control panel manages the entire operation of the generator, including starting, stopping, and regulating the power output.

Advantages of Diesel Generators

Diesel generators provide numerous advantages, making them a popular choice for power generation. Firstly, they offer high energy density, meaning they produce a considerable amount of electrical energy per unit of diesel fuel. This makes them particularly efficient, cost-effective, and suitable for extended periods of use. Furthermore, diesel fuel is more readily available and easily accessible compared to other fuel types, ensuring a constant fuel supply for the generator.

Moreover, diesel generators are renowned for their durability and reliability. The combustion process within the generator is not subject to spark plugs or ignition systems, reducing the risk of malfunctions. These generators are also designed to handle heavy loads without overheating, making them suitable for a wide range of applications. Lastly, their low maintenance requirements and longer lifespan contribute to their appeal and economic viability.

Applications of Diesel Generators

Diesel generators find extensive use in various sectors and situations where a stable power supply is essential. Industries, such as manufacturing, construction, and mining, frequently rely on diesel generators to meet their power requirements. These generators are also utilized in residential areas, commercial buildings, and hospitals, providing backup power during outages or serving as the primary power source in remote locations.

Conclusion

In summary, diesel generators are highly efficient, durable, and versatile power sources widely used across industries and locations. Their ability to provide a steady supply of electrical energy, regardless of the availability of an electricity grid, makes them indispensable for numerous applications. With their long lifespan and relatively low maintenance needs, diesel generators have proven to be a reliable and cost-effective solution for meeting various power demands.

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