How to Choose a Dishwasher: The Complete Buyer's Guide

Buying a dishwasher involves more decisions than most people expect. Size, energy rating, drying system, noise level, program options, installation type — there's a lot to consider. This guide cuts through the complexity and helps you find the right dishwasher for your home.

Step 1: Choose the Right Size

Dishwashers come in three standard widths:

• 60cm (standard): The most common size in Australian kitchens. Fits under a standard 90cm bench. Holds 12–15 place settings.
• 45cm (slim-line): Ideal for smaller kitchens, apartments or households of 1–2 people. Holds 8–10 place settings. Narrower but still a full bench-height unit.
• Benchtop (compact): A portable, plug-in dishwasher that sits on the bench and connects to the tap. No installation required. Suitable for very small kitchens or renters.

Measure your available space carefully before purchasing, including the height clearance under the bench.

Step 2: Choose Freestanding or Built-In

• Freestanding: Standalone units with a finished top panel — can be placed anywhere with access to plumbing. The easier and cheaper installation choice.
• Built-under/integrated: Designed to sit under the bench, with an optional door panel that matches your cabinetry for a seamless look. Requires cabinetry modification and professional installation.
• Fully integrated: The door is completely hidden behind a cabinet panel — no visible control panel. The most discreet option, usually found in custom-designed kitchens.

Step 3: Look at the Energy and Water Star Ratings

Dishwashers carry both an energy star rating and a water star rating. More stars = more efficient = lower running costs. A 5-star energy rated dishwasher uses approximately 0.7–0.9 kWh per cycle, while a 2.5-star model might use 1.5+ kWh per cycle. Over 10+ years of daily use, this difference adds up significantly.

Water efficiency matters too — a modern 5-star water-rated dishwasher uses as little as 9–12 litres per cycle, compared to hand-washing which typically uses 20–40+ litres.

Step 4: Consider the Drying System

• Condensation drying: The most common and energy-efficient system. Hot water heats the dishes; moisture condenses on the cooler stainless steel walls and drains away. Works well on ceramics and glass but can leave plastic items damp.
• Zeolite drying (Bosch): Uses natural mineral granules that absorb moisture and release heat. Excellent on plastics. Only available on higher-end Bosch models.
• AutoOpen drying: The door opens automatically at the end of the cycle to let steam out and cool air in. Fast and effective, found on many Bosch and AEG models.
• Fan-assisted drying: An internal fan circulates warm air to speed up drying. Good but not as efficient as Zeolite.

Step 5: Check the Noise Level

Dishwasher noise is measured in decibels (dB). As a guide:

• Under 44 dB: Very quiet — suitable for open-plan kitchens or running overnight
• 44–48 dB: Standard quiet — noticeable but not intrusive
• 50+ dB: Louder — fine for enclosed kitchens or when you're not in the same room

Premium brands like Bosch, Miele and AEG consistently achieve under 44 dB.

Step 6: Look for Useful Programs

All dishwashers have a standard wash and an eco program. Look for:

• Quick/express wash (30–60 minutes) for lightly soiled loads
• Intensive/heavy program for pots and pans
• Delicate/glass program for glassware and fine china
• Half-load function for smaller loads
• Delay start for running overnight or during off-peak electricity hours

What to Expect at Different Price Points

• Under $800: Basic programs, adequate cleaning, condensation drying, louder operation. Suitable for a rental or tight budget.
• $800–$1,500: Good energy ratings, more programs, quieter operation, improved drying. The sweet spot for most households.
• $1,500+: Premium quiet operation (sub-44 dB), excellent drying, more flexible basket configurations, better build quality and longevity (Bosch, Miele, AEG).

Find the Right Dishwasher at Oceania Appliances

We carry a wide selection of certified pre-owned and graded-new dishwashers across all price points, from compact 45cm models to premium 60cm fully integrated units. Free delivery across Sydney, 3–6 month warranty on every machine. Shop at oceaniaappliances.com.au or visit our showroom at 2/14 Centre Place, Wetherill Park — open 7 days, 10 am to 8 pm.