What Size Generator Do I Need for a 3 Bedroom House?

If you’re looking for a generator for your 3-bedroom house in Tasmania, it’s essential to consider the number of people living in your house, what you need to power, and how often you’ll need to run it. The team at Diesel Generation Australia have put together this guide to help you find the right generator for your needs. 

How Many in the Household?

Most modern homes are quite energy efficient, but the number of people in your household and how they use electricity can change things. As a safe bet, you can be confident running most household appliances in a 3-bedroom home with a generator rated between 5000 to 7500 watts. This includes a refrigerator, air conditioning, hot water systems, and lighting circuits. 

With 2 to 3 family members, a generator on the 5000-watt end may be sufficient. If you had 5 or 6 family members in the household, you’re better off opting for inverters or petrol generators in the 7500-watt range.

What Appliances are Being Used?

Since we don’t run all our appliances at once, a good approach is to check the approximate running watts of your household appliances before buying a generator. For example, here is the approximate power usage for common appliances:

  • Air conditioner: 1500-3500 watts
  • Dishwasher: 2400 watts
  • Electric stovetop: 1200-2200 watts
  • Kettle: 2400 watts
  • Microwave: 700-1000 watts
  • Refrigerator: 50-100 watts
  • TV: 30-200 watts
  • Vacuum cleaner: 1200 watts
  • Washing machine: 900 watts

Determine the approximate usage in watts for electrical appliances in your house and add another 30% on top for unplanned use, e.g., the refrigerator compressor kicking in.

Go Slightly Larger for a Safer Bet

You should also keep in mind that your average electricity consumption will be higher than usual during peak times. It’s a good idea to keep a larger generator than you need, to prevent underload or pressure in your generator and to ensure smooth supply during a power outage.

The wrong generator can overwork and consume excessive power, leading to overheating and malfunction of generator parts. An underworking generator can also be harmful due to uncertain voltage drop or integrated circuit burn to a home appliance.

Petrol and Diesel Generators for Sale in Tasmania

Diesel Generation Australia provides petrol generators and diesel generators for sale and hire in a variety of sizes. From small domestic generators to larger commercial generators, as well as various generator parts, we have the right product to fit your unique needs. Enquire today for Tasmania-wide services. 

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