Posts Tagged ‘Miele dishwasher’

How quiet should a dishwasher be?

February 3, 2014
howquietdishwasher

Doves cry at about 44 dBA.

Dishwasher-makers aggressively tout the quietness of their dishwashers by dBA ratings. A dBA rating expresses a weighted decibel level that puts in human context to how loud or quiet a sound is to our ears, because humans perceive sound differences less sensitively at volume extremes. With dishwashers in the marketplace ranging from 37-64 dBA, what really matters when it comes to quietness and what’s simply hype?

We speak at about 60 dBA, light rainfall registers at 50 dBA, a quiet suburb at night registers at 40 dBA and a whisper registers at 30 dBA. Check out Bosch’s interactive “Understanding Decibels” feature on its website to better understand common noise levels.

Dishwashers used to average about 65 dBA. Now, the majority of dishwashers have dBA in the low 50s to the 40s, so somewhere between dinner table chatter and scattered showers. Not only is that a vast improvement over what you likely have in your kitchen, but I bet it will clean way better too.

The most quiet dishwashers compete on just one or two dBA levels — a difference that is unnoticeable or barely so. The Miele Futura Diamond dishwasher comes in at 37 dBA when used in its Extra Quiet Program mode; otherwise, it’s rated at 42 dBA. The Bosch 800 Plus comes in a close second at 38 dBA “in normal operation,” which I think means with clean dishes.

Miele explains that dirty dishes often lead to louder operation in competing brands, because the dishwasher has to work harder than during testing. The lowest difference between testing its competitor’s dBA claims using both clean and dirty dishes was about 3 dBA levels, which is barely noticeable.

quietestdishwasher

In the real world, we call this splitting hairs, so such a slight difference should not be your deciding factor. Alternatively, you will likely notice 10 dBA levels, which is the point at which audible sound doubles.

However, how quiet does your dishwasher really need to be not to interrupt your life? Current trends in home layouts have kitchens much more open to the rest of the house, but what the dBA levels don’t remind you of is that sound dissipates with greater distance.

Are you home-schooling your children at the counter or for some strange reason installing a dishwasher in your nursery? If you’re not carrying on important tasks near your dishwasher, take the ratings with a grain of salt and consider price, racking and performance as also very important.

Tips for buying a dishwasher

September 25, 2013

Sizes & styles

Though dishwashers are relatively standard in size at 24” wide, you may have less than 34” in height if, say, new flooring was laid on top of old flooring. Or your countertops are slightly lower for handicap accessibility.

In these cases, you will need to seek out a “short tub” or ADA compliant dishwasher. An increasing number of dishwashers now offer hidden controls along the top of the door instead of front controls for a more seamless appearance. For a truly integrated appearance, several manufacturers offer models with an unfinished door, able to accept a custom wood panel.

Frigidaire's OrbitClean alternating arm action  focuses four times more water and detergent in a  concentrated area while rotating around the interior.

Frigidaire’s OrbitClean alternating arm action focuses four times more water and detergent in a
concentrated area while rotating around the interior.

Basic models offer just one or two spray arms, but most dishwashers have a spray arm on the bottom, in the middle, and at the top of the dishwasher tub. These spray arms typically have a direct feed of water as opposed to the indirect tower design of the past.

European-style models (i.e. Bosch, ASKO, Miele, Electrolux, etc.) use a slightly different approach to cleaning. These models feature high wash temperatures (30-40 degrees more than comparable models) and increased water pressure. The increased water temperature and water pressure creates a more effective wash cycle, able to cut through even the toughest baked-on grease.

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Traditionally, silverware baskets are located front and center in the lower rack, but some models feature a long basket on the side of the lower rack, which often can be split into sub baskets and relocated or removed. Some high-end dishwashers offer a flat, dedicated silverware tray at the top of the dishwasher that frees up more space in main racks.

dcs-tall-dishdrawerFor flexible use options, consider dish drawer dishwashers, which can be purchased as single drawer (using half the water and electricity of a standard dishwasher) or double units (each drawer runs independently for convenient flexibility). Drawers also reduce bending for those with back or knee problems.

Features to consider

  • Anti-Leak Safety – shields hardwood floors from damage in the case of an internal leak. Water will be contained within the pan, shielding hardwood floors from damage. A sensor within the safety pan may also shut down the dishwasher to prevent further damage.
  • Internal Water Softener – ensures soft water is used, which reduce fogging and etching to glassware and improves cleaning power of detergent
  • Stainless steel interiors are less likely to absorb odors or stains than plastic interiors and results in a quicker overall dry time through condensation
  • Third racks may be adjusted and nearly removable to use otherwise-wasted space. Sometimes used as a glassware rack for the frequent entertainer.
  • Hard food disposers typically grind up food particles and flush them out, but European-style models’ high wash temperatures and increased water pressure emulsify food waste that is washed away at the end of the cycle. Not using a disposer means less energy consumption and fewer moving parts, resulting in fewer breakdowns and quieter operation. A food trap prevents more durable items, such as chicken bones, from entering into the mechanics of the unit.

Star-Sapphire_time

  • LED electronic read-outs – show the time remaining in a cycle. Wash times are longer today than they were in the past to make up for today’s more eco-friendly but less-potent detergent. A normal wash used to be 45- 60 minutes, but is now between 90-135 minutes, depending on the model.

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