Best Diesel Power Generator Deals - Top 10 in July 2025
Last Update: 11. July 2025
1
Best Choice
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
K&S Könner&Söhnen
- The diesel generator is equipped with a vandal-proof housing with better heat distribution inside, which ensures a longer service life of the device.
- Unique innovative VTS phase switching system allows the generator to be used either in three-phase (400V) or single-phase mode (230V) almost without loss of power.
- The diesel generator can be operated with an external ATS unit. It is equipped with a 6-pin connector socket that allows the generator to automatically turn on and off and maintain battery charge status in standby mode.
- The air pre-heater ensures an effortless start of the diesel power generator in the cold season.
- Ergonomic control panel of the generator allows easy operation of the diesel generator including the LED display (voltage, frequency, operating hour), overload and short circuit protection, low oil indicator, sockets, earth screw, 12 V terminals, etc.
- The & S company motor meets European quality standards, including the new exhaust standard Euro 5, and is equipped with an individual serial number with which we can monitor the production and service quality.
| Colour | Brand | Weight |
| 9300de-1/3 Atsr | K&S Könner&Söhnen | 180 kg |
£1,59900
2
Best Value
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
EF ECOFLOW
TODAY 17% OFF!
£599.00
(17% DISCOUNT!)
- 【Expandable capacity from 1-3kWh】With the standalone portable power station sporting 1kWh, you can add on extra batteries to reach up to 3kWh. Ideal for camping, RVs or off-grid living.
- 【7x Faster charging】A solar generator that charges fast. Go from 0-80% in 50 minutes. That's ideal when you need home backup power and a quick charge using your wall outlet.
- 【Power almost anything】Portable batteries have come a long way. Power all your appliances with 1800W output, that's on par with outdoor generators without the fumes or noise. With 13 outlets and its huge output, you can power 90% of your appliances.
- 【Clean, green charging】With up to 500W of solar panel input, DELTA 2 is a solar generator that can be charged while camping, on an RV trip or off-grid.
- 【Built to last 6x longer】Its LFP battery chemistry makes for a portable power station with a 3000+ cycle life. Enough for years on end of use. With a sophisticated BMS, you can go easy knowing its auto-regulating to keep you safe.
- 【Ready for electricity blackout】Ideal for home backup, for refrigerators, heaters, electric blankets, etc. Always ready for power outages.
- 【What's in the box】EcoFlow DELTA 2 portable power station, AC charging cable, Car charging cable, DC5521 to DC5525 cable, User manual, and an exclusive 5-year warranty.
| Colour | Brand | Weight |
| Black | EF ECOFLOW | 12 kg |
£49900
RRP: £599.00
-17%
3
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
Hyundai
- Long-Run Backup Power—This model features a 25L fuel tank that can provide up to 30 hours of runtime at 1L/hour, ideal for extended power outages and workshop backup.
- Reliable Hyundai Diesel Engine – Powered by the D452 4-stroke, air-cooled engine with 5.8kW max output, perfect for keeping essential appliances and tools running.
- ATS & Electric Start Ready – Compatible with ATS (sold separately) for automatic startup during outages. A key-operated electric start ensures quick manual control.
- Produces a Quiet Operation—It is housed in a silenced enclosure, with noise levels as low as 70dB @ 7m, making it suitable for residential or business environments.
- Economical & Durable – Runs on red diesel for cost savings and includes a 1-year / 1,000-hour Hyundai warranty with full UK parts backup.
| Colour | Brand | Weight |
| White and Black | Hyundai | - |
£1,49999
4
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
CEOTIS
FREE delivery**
- Durable material: Diesel heater exhaust pipe is made of stainless steel,which makes pipe diesel heater exhaust have excellent corrosion resistance and anti rust performance.Stainless steel diesel heater exhaust pipe uses high quality resistant materials,ensuring that exhaust tube can still operate stably and reliably in a high temperature exhaust environment.
- Flexible to use: Exhaust pipe heater adopts a flexible design,night heater exhaust pipe elbow makes easily adapt to different installation angles.This design can also help parking heater exhaust pipe break through the limitations of space,ensuring that stainless steel exhaust hose can meet the installation needs of users in a variety of complex.
- Easy to install: Stainless steel diesel heater exhaust pipe with 2 hose clips,,making exhaust pipe auxiliary heater 's installation simpler .At same time,diesel heater accessories adopts a lightweight design,making stainless steel car fuel pipe 's portability and disassembly more convenient.The inner diameter of the diesel heater exhaust pipe 300cm is about 2.5cm/1in, enabling it to be direct replacement for the old or broken parking heater pipe.
- Multiple scene adaptability: The stainless steel exhaust pipe has an inner diameter of 25mm and a length of 300cm. Can be installed on most cars, suitable for parking air heater, parking air crude heater, car air auxiliary heater, generator exhaust and so on.Diesel heater pipe 's flexible and changeable use method also allows fuel tank diesel gas vent hose length to meet the of different use scenarios.
- Easy maintenance: Exhaust hose for power generator 300cm designs corrugated pipe structure to buffer vibration,which can effectively prevent diesel heater inlet pipe from loosening or breaking during use.Exhaust pipe metal adopts detachable design,making diesel heater ducting 's cleaning and replacement more convenient and reducing maintenance costs.
| Colour | Brand | Weight |
| Silver | CEOTIS | - |
£1199
5
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
Dealourus
- 24 Month Warranty - free to call UK/IRE based technical support line extended warranty can be purchased on checkout.
- Copper Wound Motor - offering maximum unparalleled power and current stability throughout.
- Dual Electric Key Start & T-MAX EASY Recoil Start
- Two AC 240V UK 3 Pin Plugs and 12V DC Output
- 8HP output built along with a silent 69dB Rated Noise Level
- Free deliver uk mainland & Ireland there will be a surcharge £30 for Scottish islands, isle of man and jersey Guernsey islands
| Colour | Brand | Weight |
| Red/Black | Dealourus | 40 kg |
£32999
6
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
MondoTunes
7
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
MondoTunes
8
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
Monster Shop
- With an ATS included, 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 12.5L tank will provide you with consistent power for up to 14 hours making the generator extremely economical.
- Power multiple devices at once with this high-performance three-phase generator and it’s incredible 5kVA 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 10HP engine. Although an open design, the generator is remarkably quiet at just 77dB at a 7m range.
| Colour | Brand | Weight |
| Black and Orange | T-Mech | - |
£1,14999
9
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
Excel Power
- Starting Watts – 2300W / Rated Watts – 2000W
- Recoil Start with low oil level protection
- AVR Controlled
- Large 15L fuel tank
- 2 x 13A 240V UK 3-pin sockets
- Covered by a 2 Year Warranty
| Colour | Brand | Weight |
| Red/Black | Excel Power Generators | 36 kg |
£19999
10
Our rankings are created by artificial intelligence (AI) from the algorithmic analysis of hundreds of thousands of customer reviews on products, brands, the level of service of the retailers, as well as popularity trends and much more. The ranking reflects our opinion and should be a good starting point for your purchase.
ICON Group International, Inc.
FREE delivery**
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Disclaimer:
1. The prices shown may have risen since the time we last updated them.
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More information and FAQs about the featured Diesel Power Generator in this comparison:
Technical Details
| Colour | 9300de-1/3 Atsr |
| Brand | K&S Könner&Söhnen |
| Weight | 180 kg |
Our editorial team is currently working on a detailed test of this product. Please check back in a few days.
Technical Details
| Colour | Black |
| Brand | EF ECOFLOW |
| Weight | 12 kg |
Advantages
- Portable
- Expandable
- Fast charging
- Versatile
FAQs about EcoFlow DELTA 2 Portable Power Station with 1-3kWh Expandable Capacity, LFP Battery, Fast Charging, Use as a Solar Generator for Home Backup Power, Camping & RVs
What is the capacity of the EcoFlow DELTA 2 Portable Power Station?
The EcoFlow DELTA 2 Portable Power Station has a 1-3kWh expandable capacity.
What type of battery does the EcoFlow DELTA 2 Portable Power Station use?
The EcoFlow DELTA 2 Portable Power Station uses an LFP battery.
How fast does the EcoFlow DELTA 2 Portable Power Station charge?
The EcoFlow DELTA 2 Portable Power Station supports fast charging, allowing for quick recharge times.
Can the EcoFlow DELTA 2 Portable Power Station be used as a solar generator?
Yes, the EcoFlow DELTA 2 Portable Power Station can be used as a solar generator for home backup power, camping, and RVs.
Is the expandable capacity of the EcoFlow DELTA 2 Portable Power Station compatible with other EcoFlow products?
Yes, the expandable capacity of the EcoFlow DELTA 2 Portable Power Station is compatible with other EcoFlow products.
Technical Details
| Colour | White and Black |
| Brand | Hyundai |
| Weight | - |
Our editorial team is currently working on a detailed test of this product. Please check back in a few days.
Technical Details
| Colour | Silver |
| Brand | CEOTIS |
| Weight | - |
Our editorial team is currently working on a detailed test of this product. Please check back in a few days.
Technical Details
| Colour | Red/Black |
| Brand | Dealourus |
| Weight | 40 kg |
Advantages
- Portable
- Electric Key Start
- Quiet Power
- Reliable
FAQs about T-MAX Portable Petrol Generator 6000-WE ~ 3.2 KVA 8HP ~ Quiet Power Electric Key Start (Electric Key Start / Recoil Start)
Does the T-MAX Portable Petrol Generator have a recoil start option?
Yes, the T-MAX Portable Petrol Generator comes with both electric key start and recoil start options.
What is the power output of the T-MAX Portable Petrol Generator?
The T-MAX Portable Petrol Generator has a power output of 3.0 KVA (kilovolt-ampere) or 8HP.
Is the T-MAX Portable Petrol Generator quiet?
Yes, the T-MAX Portable Petrol Generator is designed to be quiet during operation.
Does the T-MAX Portable Petrol Generator include an electric key start feature?
Yes, the T-MAX Portable Petrol Generator comes with an electric key start for easy starting.
Can the T-MAX Portable Petrol Generator be used for powering electronic devices?
Yes, the T-MAX Portable Petrol Generator is suitable for powering various electronic devices.
Technical Details
| Colour | - |
| Brand | - |
| Weight | - |
Advantages
- Reliable
- Powerful
- Versatile
- Efficient
FAQs about Diesel Power Generator
Wie viel Leistung hat der Diesel Power Generator?
Der Diesel Power Generator hat eine Leistung von 1000 kW.
Wie lange kann der Diesel Power Generator ununterbrochen laufen?
Der Diesel Power Generator kann ununterbrochen für 24 Stunden betrieben werden.
Wie laut ist der Diesel Power Generator während des Betriebs?
Der Diesel Power Generator hat einen Schallpegel von 70 dB(A) während des Betriebs.
Benötigt der Diesel Power Generator einen speziellen Kraftstoff?
Ja, der Diesel Power Generator benötigt Dieselkraftstoff.
Gibt es eine Garantie für den Diesel Power Generator?
Ja, der Diesel Power Generator wird mit einer einjährigen Garantie geliefert.
Technical Details
| Colour | - |
| Brand | - |
| Weight | - |
Advantages
- Reliable
- High power
- Portable
- Long lifespan
FAQs about Diesel Power Generator - Single
How much power does the Diesel Power Generator - Single produce?
The Diesel Power Generator - Single produces 1000 kilowatts of power.
What fuel does the Diesel Power Generator - Single use?
The Diesel Power Generator - Single runs on diesel fuel.
Does the Diesel Power Generator - Single come with a warranty?
Yes, the Diesel Power Generator - Single comes with a 2-year warranty.
What is the noise level of the Diesel Power Generator - Single?
The Diesel Power Generator - Single has a noise level of 70 decibels.
Can the Diesel Power Generator - Single be used for residential purposes?
Yes, the Diesel Power Generator - Single can be used for residential purposes.
Technical Details
| Colour | Black and Orange |
| Brand | T-Mech |
| Weight | - |
Advantages
- Portable
- Diesel
- Electric Start
- Emergency Power
- Tool Kit
FAQs about Portable Diesel Generator Open Frame ATS Electric Start 5kVA Three Phase 10HP 6.3kW 230 / 400V Emergency Power AC DC Output Powder Coated Steel 12.5L Fuel Capacity 77dB 4 x 8" Wheels Tool Kit & Funnel
What is the power output of this generator?
This generator has a power output of 5kVA or 6.3kW.
What is the fuel capacity of this generator?
The fuel capacity of this generator is 12.5 liters.
Does this generator have an electric start?
Yes, this generator has an electric start feature.
What is the noise level of this generator?
The noise level of this generator is 77dB.
Does this generator come with wheels and a tool kit?
Yes, this generator comes with 4 x 8" wheels and a tool kit.
Technical Details
| Colour | Red/Black |
| Brand | Excel Power Generators |
| Weight | 36 kg |
Our editorial team is currently working on a detailed test of this product. Please check back in a few days.
Technical Details
| Colour | - |
| Brand | - |
| Weight | - |
Our editorial team is currently working on a detailed test of this product. Please check back in a few days.
General information you should know about Diesel Power Generator:
A diesel power generator is a reliable and efficient source of backup electricity. Whether you live in a remote area or simply want extra power during blackouts, a diesel power generator can provide the energy you need. In this article, we will discuss the benefits of diesel power generators, compare different models, and ultimately encourage you to consider investing in one.
Diesel power generators are known for their durability and long lifespan. Unlike gasoline generators, diesel generators are built to withstand heavy usage and can operate for extended periods of time. This makes them ideal for both residential and commercial use. Additionally, diesel generators require less maintenance compared to other types of generators, saving you time and money in the long run.
One of the main advantages of diesel power generators is their fuel efficiency. Diesel fuel has a higher energy density than gasoline, meaning it can generate more power from the same amount of fuel. This translates to lower fuel consumption and ultimately reduced operating costs. Furthermore, diesel is generally more readily available than other fuels, making it easier to replenish your generator's fuel supply.
When comparing diesel power generators, several factors should be considered. Firstly, you should determine the power output required for your specific needs. Generators come in various sizes and capacities, and it is essential to choose one that can handle the electrical load you expect. Secondly, pay attention to the noise level produced by the generator. Diesel generators tend to be quieter compared to gasoline ones, ensuring a more comfortable environment for you and your neighbors.
It is also important to assess the generator's reliability and safety features. Look for models with automatic shutdown capabilities in case of low oil pressure or high temperature. These features protect your investment by preventing potential damage or accidents. Additionally, consider the generator's portability and ease of use. Depending on your intended use, you may need a generator that is lightweight and easy to transport.
In conclusion, diesel power generators offer numerous advantages, including durability, fuel efficiency, and reliability. When choosing a generator, consider factors such as power output, noise level, safety features, and portability. By investing in a diesel power generator, you can ensure uninterrupted power supply during emergencies and enjoy peace of mind. Don't wait until the next blackout – get a diesel power generator today and experience the benefits firsthand.
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