About Outbax

We provide your camping and outdoor needs at consistently low prices,
without compromising quality.

At Outbax, our team of 30+ staff are passionate about offering quality products at a low price.

Customer service is the core of our business. We have 12 full-time customer service champions to answer all of your queries and you’ll never be caught unaware with our 60-day money back guarantee.

What Size Generator for House

Whether you are connected to mains electricity or running your home off-grid, you may be considering a generator purchase for your home and, therefore, what size generator for a house you should buy. There are many types and sizes of generators, so it’s important to know about the differences and what they are able to offer. As far as what type or what size generator for a house is concerned, there are basically two kinds: (1) backup portable generators, which can be wheeled out and started up via a manual transfer switch when the need arises, or (2) permanently installed standby generators that will kick in automatically once the power goes out. It’s also important to remember that it’s slightly different from using a compact 2000w generator for camping. For safety reasons, get informed and read the manuals – even better, contact an electrician. Read more

15 products fitting your needs

Set Descending Direction

NEW 2022 Design GenTrax 2KW Max 1.6KW Rated Inverter Generator

Rating:
100%
5 Stars
Special Price $469.00 Regular Price $1,399.00

SPECIAL INTRO OFFER!
PLUS a further 10% off using code GENTRAX10
Pay only $422.10 with FREE Shipping to most areas!

HURRY! Promo ends Monday, May 30th 11:59pm AEST

  • Extremely Portable & Lightweight
  • Convenient 3.0L Fuel Tank
  • Easy pull start with adjustable choke
  • Super Quiet Operating Noise Level (7m) 58dB At Idle
  • Digital Inverter/Pure Sine Wave Output
  • Dual USB Ports
Learn More
New

GenTrax 3.5kW Remote Start Pure Sine Wave Petrol Inverter Camping Generator

Rating:
100%
5 Stars
Special Price $1,049.00 Regular Price $2,699.00
  • Portable at 38kgs, built-in wheels for transportation
  • 7.5L fuel capacity for 5.5 hour run time
  • Runs quietly at 58dB @ 7 metres
  • LCD digital display shows output and running time
  • Wireless remote allows you to operate the unit from up to 10m away
  • Built-in 5V USB Port
Learn More
Best-seller

GenTrax 2.2kW Premium Inverter Generator Petrol Pure Sine Wave

Rating:
100%
5 Stars
Special Price $699.00 Regular Price $1,599.00
  • Hassle-free oil replacement and maintenance
  • Extra noise reduction - 59dB @ 7m
  • Easy electric start function
  • 12V DC output and cigarette light socket
  • 1 USB terminal for charging electronics
Learn More
Pre-order

GenTrax 800W Mini Pure Sine Wave Petrol Inverter Camping Generator

Rating:
100%
5 Stars
Special Price $329.00 Regular Price $999.00
  • Lightweight and portable at 8.5kgs
  • Pure Sine Wave – won’t interfere with with sensitive electronics
  • Fuel-efficient and runs quietly at 58dB @ 7 metres
  • Up to 6 hours run-time
  • 4-stroke start – quick and easy to turn on
Learn More
On sale

GenTrax 2kW Pure Sine Wave Inverter Petrol Portable Camping Generator

Rating:
97%
4.85 Stars
Special Price $539.00 Regular Price $1,499.00
  • Incredible 9-hour run-time
  • Lightweight and portable at 18.5kgs
  • Pure Sine Wave – won’t interfere with with sensitive electronics
  • Fuel-efficient and runs quietly at 58dB @ 7 metres
  • Low-oil level alert prevents engine damage
Learn More
Best-seller

GenTrax 1.2kW Pure Sine Wave Petrol Inverter Camping Generator

Rating:
95%
4.75 Stars
Special Price $419.00 Regular Price $1,199.00

 

  • Compact and lightweight at 12.5kgs
  • Pure Sine Wave – won’t interfere with with sensitive electronics
  • Fuel-efficient and runs quietly at 58dB @ 7 metres
  • 3L fuel tank provides a 6.6 hours run time at 50% load
  • Perfect for camping and emergency backup
Learn More
On sale

GenTrax 800W Max Rated Portable Pure Sine Wave Super Premium Inverter Generator

Rating:
100%
5 Stars
Special Price $419.00 Regular Price $919.00
  • Light and Portable at 9.3 kgs
  • Pure Sine Wave to Protect Sensitive Gadgets
  • Hassle-Free Oil Change
  • 12V DC Output with Cigarette Lighter Socket
  • 1 USB port to power your electronics
Learn More
On sale

GenTrax 3.5kW Pure Sine Wave Petrol Inverter Camping Generator

Rating:
93%
4.65 Stars
Special Price $789.00 Regular Price $1,999.00

Rated Australia's Best Generator Since 2018!
Plus FREE SHIPPING* to most areas!

  • Lightweight and portable at 28kgs
  • Fuel-efficient and runs quietly at 58dB @ 7 metres
  • Can power everything from lights to air conditioning
  • Up to 8 hours run time
  • Dual Australian-approved weatherproof 15Amp AC outlets
  • Charge batteries –12V 5Amp outlet (free battery clips included)
Learn More
Best-seller

GenTrax 2.5kW Pure Sine Wave Petrol Inverter Camping Generator

Rating:
90%
4.5 Stars
Special Price $679.00 Regular Price $1,799.00
  • 100% Pure Sine Wave: Tested with Sensitive Equipment
  • Low oil shutdown safeguards engine from damage
  • Super Quiet: 58Db@7m
  • 8 Hours Continuous Running Time (Economy Mode)
  • Super Easy Recoil Start
Learn More
On sale

GenTrax 6KW Pure Sine Wave Inverter Generator

Rating:
95%
4.75 Stars
Special Price $2,099.00 Regular Price $3,999.00
  • Powerful engine output of 6KW/3600 RPM max
  • Key and remote start, LCD display for output and running time
  • Fuel-efficient and runs quietly at 62dB @ 7 metres
  • Biggest model available – can run shop back-up or construction site
  • Convenient wireless remote from up to 10m away
Learn More
On sale

15 products fitting your needs

Set Descending Direction

Whether you are connected to mains electricity or running your home off-grid, you may be considering a generator purchase for your home and, therefore, what size generator for a house you should buy. There are many types and sizes of generators, so it’s important to know about the differences and what they are able to offer. As far as what type or what size generator for a house is concerned, there are basically two kinds: (1) backup portable generators, which can be wheeled out and started up via a manual transfer switch when the need arises, or (2) permanently installed standby generators that will kick in automatically once the power goes out. It’s also important to remember that it’s slightly different from using a compact 2000w generator for camping. For safety reasons, get informed and read the manuals – even better, contact an electrician.

What size generator do I need for my house?

It’s really up to you to decide what size generator for a house you need. This is because you can decide what load you will draw down from the generator by thinking about what appliances, devices or equipment you will need to keep running if there is a power outage. Alternatively, if you are already off-grid, what you will want to keep running while your battery gets recharged. If it’s only the basics, then obviously, you will not need a massive power output. However, if you live in an area that is prone to power outages due to storms and other disasters, then you’ll want something that can run more than a few essentials just in case the outage lasts for days on end, even longer perhaps.

The best way to work it out is to make a list of all the equipment you would want to keep running in an emergency. Then, look at the watt rating for each of those, both for start-up and running watts. Start-up watts are always higher than the running watts. For even the most basic set up, you will need a generator that has the capacity to handle the highest start-up watt rating. You will also need to think about which appliances you will want to run simultaneously, e.g., fridge and lights, so that when you think about what size generator for a house, you are thinking about one that can start and run certain items concurrently. It’s also a good idea to have a little bit more power so as to be sure there is sufficient voltage. This will avoid a brownout and subsequent damage to equipment.

As mentioned, a more portable generator may be stored and brought out for emergencies. Therefore, think seriously about what size generator for a house you will need in terms of the dimensions and weight of a portable model because it will need to be taken to a well-ventilated exterior location before you can start it up and connect it. In this case, erring on the smaller side for home use might be a good idea. However, if the generator is going to be permanently installed and doesn’t have to be brought out of storage, you can get a much larger-sized model.

How to connect a generator to a house?

After deciding what size generator for a house you’ll need, you’ll be looking into how to connect a generator to your home. For this, get professional help. There is risk of fire and electrocution when dealing with an electric current, so it’s essential to be careful. At the very least, you will need a manual transfer switch and an inlet box hook up – both of which will need to be installed by an electrician. A larger standby generator that will be permanently installed and connected to the home is also a job for an electrician as it involves connection to the mains. An electrician will also need to install an automatic transfer switch, which is the device that recognises that the mains power has gone out and switches over to generator power.

Before connecting a generator on a manual switch, it needs to be started up. If it runs on fuel such as petrol or diesel, it also needs to be filled first, so make sure you have fresh fuel on hand as stale fuel that has been left in the tank or stored is not good for the engine. Never refuel a generator when it is hot.

Where can I buy a good generator for my house?

If you are in need of a quality generator for your home, and you are wondering what size generator for a house you need, then check out the range at Outbax. Got questions about generator size or generator usage? Our customer service team will be happy to help with any information you need. Whether it is an auto start generator for home, a small generator for camping or a generator for a caravan, we have a generator to suit your power needs. From a petrol generator to a battery generator or even marine generators, we can supply you with the right equipment.