Sealey vs Clarke Generator
Choosing between a Sealey and a Clarke generator means picking a reliable British brand for site work or home backup. Both offer petrol and diesel models, but key differences in build quality, power output, and warranty coverage can determine the best fit for your needs.
Quick answer
For most users, the Clarke IG2200 is the top pick for its quiet inverter technology and value, while the Sealey SSG3000 is best for heavy-duty site work requiring high surge power and a robust frame. Choose Clarke for portability and Sealey for raw power.
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Research updated June 2026.
| Specification | Sealey SSG3000 | Clarke IG2200 |
|---|---|---|
| Best for | Heavy-duty site power | Quiet camping & home backup |
| Rated Power (Watts) | 2700 | 1800 |
| Peak Power (Watts) | 3000 | 2200 |
| Engine Type | 4-stroke petrol | 4-stroke petrol inverter |
| Noise Level (dBA) | 96 | 58 |
| Fuel Tank Capacity | 15L | 8.5L |
| Run Time (50% load) | 10 hours | 8 hours |
| Weight | 47 kg | 22 kg |
| Warranty | 2 years | 2 years |
| Rating | 4.3 / 5 | 4.6 / 5 |
| Price | Check on Amazon | Check on Amazon |
Sealey vs Clarke Generator: Which Brand Offers Better Value?
Sealey and Clarke are both well-respected UK brands known for workshop and site equipment. Sealey generators often feature heavy-duty steel frames and larger engines, making them suitable for construction sites where durability is key. Clarke, on the other hand, focuses on inverter technology for cleaner power and lower noise, ideal for sensitive electronics and residential use. Owner reviews consistently praise Sealey for raw power and Clarke for portability and quiet operation.
Power Output and Performance
The Sealey SSG3000 delivers a continuous 2700W with a 3000W surge, enough to run a 1.5kW site saw and a 1kW heater simultaneously. Its 15L fuel tank provides over 10 hours of runtime at half load. The Clarke IG2200 offers a cleaner 1800W continuous (2200W peak) via inverter technology, producing less than 3% THD, which is safe for laptops, phones, and CPAP machines. For heavy tools, the Sealey wins; for electronics, the Clarke is superior.
Noise Level and Portability
Noise is a major differentiator. The Sealey SSG3000 operates at 96 dBA, comparable to a lawnmower, which can be disruptive on campsites or near homes. The Clarke IG2200 runs at just 58 dBA, similar to a normal conversation, making it suitable for overnight use. At 22 kg, the Clarke is also much lighter and features a built-in handle, while the Sealey at 47 kg requires a dolly or two people to move.
Build Quality and Warranty
Both brands offer 2-year warranties, but build materials differ. Sealey uses a heavy-duty tubular steel frame with vibration mounts, designed for rough site handling. Clarke uses a plastic shroud over a steel chassis, which is lighter but less impact-resistant. Owner reviews on Amazon and Screwfix indicate Sealey units last longer under daily abuse, while Clarke units are more reliable for occasional use and storage.
What to Check Before Buying a Generator
Consider your power needs: add up the running watts of all devices you will run simultaneously, then add a 20% buffer for surge. Check the fuel type: petrol is cheaper and more available, but diesel offers longer life and lower fuel consumption for heavy use. Also verify the outlet type: most UK generators come with 13A sockets, but some models offer 16A commando outlets for site tools.
Mistakes to Avoid When Choosing a Generator
Do not buy a generator based on peak power alone. Running a generator at full load for extended periods can cause overheating and damage. Also avoid using a standard generator for sensitive electronics without an inverter model or a separate voltage regulator. Finally, never store a generator with fuel in the tank for more than 30 days without a stabiliser, as stale fuel can clog the carburettor.
FAQs
Which is better for home backup, Sealey or Clarke?
For home backup, the Clarke IG2200 is better due to its quiet operation and clean power suitable for fridges and electronics. The Sealey SSG3000 is too loud for residential areas.
Can I run a welder on a Sealey generator?
Yes, a 3000W Sealey generator can run a small inverter welder up to 140 amps. Check the welder's input rating to ensure it does not exceed the generator's continuous output.
Are Clarke generators as reliable as Sealey?
Both are reliable, but Sealey generators are built for heavier use and last longer under daily site conditions. Clarke units are more reliable for intermittent home or camping use.
What is the warranty on Sealey and Clarke generators?
Both brands offer a standard 2-year warranty against manufacturing defects. Extended warranties may be available through some retailers.
Which generator is quieter, Sealey or Clarke?
Clarke inverter generators are significantly quieter, operating at around 58 dBA compared to Sealey's 96 dBA. Clarke is the clear choice for noise-sensitive environments.
Can I parallel two Clarke generators?
Yes, many Clarke inverter models support parallel operation with a specific parallel kit, doubling your power output. Sealey standard generators do not offer this feature.
Are Sealey generators made in the UK?
Sealey generators are designed in the UK but manufactured in China, like most generators in this price range. Clarke generators are also sourced from Asian factories.
Which generator is lighter for camping?
The Clarke IG2200 at 22 kg is much lighter than the Sealey SSG3000 at 47 kg. The Clarke is the better choice for camping due to its portability and low noise.
Do Sealey generators have low oil shutdown?
Yes, most Sealey generators include a low oil shutdown sensor to protect the engine. Clarke models also feature this safety mechanism.
Which generator has better fuel efficiency?
Clarke inverter generators are more fuel-efficient because they adjust engine speed to the load. The Sealey runs at a constant 3000 RPM, consuming more fuel at partial loads.
Our verdict
For most users, the Clarke IG2200 is the best overall generator due to its quiet operation, clean power, and portability. For heavy-duty site work requiring maximum power and durability, the Sealey SSG3000 is the best budget choice for professionals who prioritise raw output over noise.