Which Generator is Right for Your Home? Tips for Making the Right Choice

When the power suddenly goes out, a reliable generator can turn a frustrating blackout into a manageable inconvenience. But with so many models, fuel types, and power ratings on the market, finding the right type of generator is a little challenging.

This guide is designed to help you better understand what to look for, and highlight some of the top generators for sale right here at B.W. Machinery.

Understanding Your Power Requirements

Before you rush to purchase the first generator in sight, try to determine what you actually need to power during an outage. For instance, not every appliance has the same power requirements, and some naturally draw more electricity when starting up. Typical household essentials we recommend accounting for include:

Refrigerator and freezers: These appliances need extra power at start-up.

Lighting: Depending on the number and type of lights, this can vary from a few hundred watts to over a thousand.

Electronics: TVs, computers, phones, modems, and routers will require a stable source of power.

Heating or cooling systems: Air conditioners, heaters, and fans are essential to keep running, especially on cold nights or the height of summer.

Medical equipment: Life-support or essential medical devices will require reliable backup power.

After you’ve got a better picture of the capacity needed, calculate both the continuous (running) and surge (start-up) wattages. Continuous output is the power the generator can supply over time, while surge output is the short-term boost needed when appliances start. Choosing a generator that meets both requirements is essential to prevent overload or failure.

Types of Home Generators

Generators for home use generally fall into three categories: inverter generators, portable open-frame generators, and standby generators.

Inverter Generators

Inverter generators are a popular choice for home use due to their quiet operation, fuel efficiency, and clean power output. They produce stable voltage suitable for sensitive electronics like laptops, gaming consoles, or medical devices. Many inverter generators are lightweight, portable, and even include features like USB ports or electric start.

Some of the best inverter generators come from brands like Honda, Briggs & Stratton, RATO, and Cromtech. These models range from smaller units for essential backup to more powerful options capable of handling multiple circuits.

Advantages:

• Low noise levels, making them suitable for suburban placement.
  
• Fuel-efficient, especially under partial load.
  
• Clean, stable power for sensitive electronics.
  

Limitations:

• Typically more expensive per kVA than standard portable generators.
  
• Not ideal for powering an entire home continuously if your load is heavy.
  

Portable Open-Frame Generators

Open-frame or worksite generators are more robust and suitable for heavy-duty use. They can supply more power, making them ideal for larger homes or properties with additional electrical demands, such as pools, workshops, or air-conditioning systems.

These units are durable but tend to be a bit more loud and bulky, so placement and noise mitigation should be considered.

Fuel Types

Generators commonly use petrol, diesel, or sometimes gas. Petrol generators are easy to refuel and suitable for light to medium use. Diesel generators are more efficient under heavy loads and for extended runtime. When choosing fuel type, consider availability, storage, and running costs.

Key Features to Consider

Choosing a generator isn’t just about power output. Keep these features in mind:

• Starting mechanism: Electric start is convenient, while recoil (pull-start) is standard on smaller units. Some models include both.
• Noise levels: Important in residential areas—especially if the generator will run close to your home.
• Portability: Wheels and handles make moving heavier models easier.
• Safety: Features like RCD protection prevent electrical hazards.
• Maintenance: Easy access to oil, fuel, and filters ensures the generator stays in good working order.

Generators

Here are some popular models available through B.W. Machinery, covering a range of power needs and price points.

Honda EU22i Generator

The Honda EU22i is a reliable source of electricity when the power goes out. It’s environmentally friendly with both low emissions and low fuel consumption for cost efficiency. The EU22i features a low oil alert system that protects the engine by shutting down if a low oil pressure is reached.

• Powerful engine: 2200W maximum output
• Convenience: Compact and a light 21kg weight
• Inverter technology: Better than commercial-quality electricity
• Fuel efficient: Built-in eco-throttle to adjust engine speed to meet load demand
• 4-Year Warranty: Backed by a multi-year warranty plan

Check out the full range of Honda generators for sale now!

Gentech EP7000HSR Generator

This 7kVA Generator is the perfect size for almost everything. Complete with 2 x 15 amp outlets, and a Honda Australian-approved GX390 engine, this generator will run your power tools, small compressor, and much, much more.

• Power Rating: 7 kVA
• Engine Model: Honda GX390
• Fuel Type: Petrol
• Operation Hours (80% load): 2.5hours

Explore the full range of Gentech generators for sale right here online, or stop by your nearest BW Machinery store today!

Briggs & Stratton P2400 PowerSmart Series™ Inverter Generator

Enjoy the little conveniences of home anywhere. Quietly. Because of the Quiet Power Technology®, our inverter generators are quieter than traditional camping generators. This P2400 PowerSmart Series™ generator is also safe for sensitive equipment, like your smartphone, laptop, TV and game systems.

• Run Time: up to 8.0 at 25%
• OHV Engine: Yes
• Fuel Tank Capacity (L): 3.8
• Starter: Recoil

We’ve got a fantastic range of Briggs & Stratton generators for sale. Explore the collection now!

Matching Generators to Home Scenarios

To help you narrow down your choice, here’s a quick guide:

Scenario 1: Essential Home Backup

• Needs: Fridge, microwave, lights, electronics.
• Best choice: Mid-range inverter generator.
• Reason: Quiet, fuel-efficient, safe for sensitive devices.

Scenario 2: Larger Home or Workshop Use

• Needs: Air-conditioning, pumps, power tools.
• Best choice: Industrial-grade open-frame or Gentech generator.
• Reason: Handles high surge loads and continuous heavy-duty usage.

Scenario 3: Recreational or Occasional Use

• Needs: Camping, outdoor events.
• Best choice: Small portable inverter generator.
• Reason: Light, quiet, and easy to transport.

Maintenance and Longevity Tips

Even the best generator needs care. Keep it in peak condition with these steps:

• Regular oil changes: Follow the manufacturer’s schedule.
  
• Air filter care: Clean or replace filters regularly.
  
• Fuel stabiliser: Use when storing fuel for long periods.
  
• Test under load: Run the generator occasionally to ensure readiness.
  
• Battery maintenance: Keep batteries charged on electric-start models.

Installation and Safety Considerations

If wiring a generator into your home circuits, always use a qualified electrician and a transfer switch to prevent back-feeding. Ensure the generator is placed in a well-ventilated area, away from doors and windows to avoid carbon monoxide risks.

Noise reduction can be achieved through distance, enclosures, or choosing a quiet inverter model.

Using a Generator at Home: Safety Tips

If you’re connecting a generator to your home, you can either use extension cords or a transfer switch. Extension cords are the cheapest option and require no installation, making them ideal for powering essentials like fridges, lights, or chargers during short-term outages. However, they can’t power hardwired appliances such as water heaters, ceiling fans, or furnaces.

A transfer switch, installed by an electrician, is a safer and more convenient solution. It connects your generator directly to your home’s electrical panel, allowing you to run hardwired appliances and manage power across circuits efficiently. Importantly, never plug a generator directly into a household outlet, as this can cause dangerous back-feeding, risking electrocution, fires, and equipment damage.

Invest in the Right Generator Accessories

The best way to get the most out of your equipment is to invest in the right generator accessories. This generally includes items such as generator mats, security cables, parallel kits or a manual transfer switch. If the generator runs off petrol, you’ll also need reliable engine oil and a dependable fuel can.

At BW Machinery, we stock all the equipment required to keep your generator running smoothly and safely.

High-Quality Generators for Sale

At B.W. Machinery, we have a great range of inverters, open-frame, and industrial generators available both in-store and right here online. With a great range of Honda generators for sale, Briggs and Stratton generators, Crommelins generators and more, there’s options to suit any need!

Looking to pick up a generator in Melbourne? Feel free to stop by one of our many stores in Bentleigh East, Cheltenham, Ringwood, or Seaford. Our friendly staff members will be more than happy to help you find the right piece of equipment!