Choosing the right diesel generator for your home is essential. Whether you’re looking at new generators, checking out used generators for sale, or planning to buy a generator for peace of mind, you need the right size. PowerTech Generators is here to guide you.
Why Getting the Right Size Diesel Generator Matters
A generator that’s too small won’t power what you need. One that’s too big wastes fuel and money. The right size balances power demand and fuel efficiency.
Work Out Your Home’s Power Demand
Start by listing what you need to power. Common items include:
- Lights
- Fridge and freezer
- Heating system
- Cooker
- Washing machine
- TV and electronics
Each has a power rating in watts (W) or kilowatts (kW). Add them up. Most UK homes need between 3kW and 5kW for essential circuits. Larger homes or higher usage can push this to 10kW or more.
Generator Size Guide
| Home Size | Typical Generator Size |
| Small (essentials only) | 3kW – 5kW |
| Medium (full house) | 8kW – 12kW |
| Large (large appliances, heating, extras) | 15kW – 20kW |
Always leave around 20% headroom. Appliances often draw more power when starting. This also covers future needs.
Running Costs of Diesel Generators
Diesel generators are reliable and fuel-efficient, especially if you use them regularly. They cost less to run than petrol models when used properly. Your running costs will depend on load, fuel prices, and efficiency.
Should You Look at Used Generators for Sale?
Used generators can save you money. Check the condition, service history, and hours run. A well-maintained used diesel generator is often a cost-effective option.
New Generators vs Used Generators
New generators give you warranties, reliability, and lower maintenance from the start. Used generators cost less upfront but may need more attention. If you plan to use your generator often, buying new could pay off.
Tips Before You Buy a Generator
- Match the size to your actual needs.
- Get a professional to assess your home.
- Ensure proper installation and servicing.
- Check fuel consumption rates.
- Choose between new and used based on usage and budget.
PowerTech Generators Can Help
PowerTech Generators supplies both new generators and used generators for sale. We help you find a diesel generator that fits your home and keeps you powered.
Learn More
If you’re ready to buy a generator or need advice on diesel generators, get in touch with PowerTech Generators.
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