Did you know that dishwashers date back to 1887? This was due to the inventor’s servants continually chipping her fine china.

Today, you have options when it comes to different dishwashers. You have the choice between commercial and home dishwashers.

But what are the differences between the 2 and which is right to choose? Read this guide on the differences between these options to understand why dishwashers vary so much!

Electrical and Plumbing

An Industrial Dishwasher will require a higher electrical rating. They’ll require multiple breakers or additional wiring.

If you have a booster heater and detergent pump in your commercial dishwasher, then you’ll need extra wiring. They’ll require 3-phase electrical hookups. In order to have this, you’ll need to hire an electrician.

If you have a residential dishwasher, you’ll normally only need a 115-volt power line. Some have a power cord that can plug into a wall outlet.

Many dishwashers won’t require wiring or a special breaker. You’ll need an electrician to set up your electrical line.

As far as pressure couplings, you’ll find them available for residential dishwashers. They can be installed with ease if you use the instruction manual. Normally, a regular sink drain will do the job.

Many of these dishwashers have an internal drain system or pump. It pushes the drainage water out of the unit.

Commercial dishwashers can’t use PVC or plastic pipes. This is due to the heat that it can withstand which a normal dishwasher can’t.

Since they have a higher pressure, orifices might not be strong enough. Glassware can dry within 30 seconds when you use a high-temperature washer. They can drip dry to a floor drain when the racks are positioned out.

You’ll need a stronger drain pump since they require a large amount of water. They’re often designed to use a floor drain.


You might be tempted to buy a residential dishwasher because it’s less expensive in the beginning, but it might wind up costing you more in the long run. This is because residential dishwashers might leave behind residue and grease. You’ll then need to wash them all over again.

Many of the residential dishwashers will have higher operating fees and maintenance. Commercial dishwashers could cause more breakage of glass though. This will be an extra overhead cost that you’ll need to determine.


Many residential dishwashers can fit more than they could before but still not as much as commercial dishwashers. You could also consider under-counter dishwashers.

This is when you’re looking for something that’s between a residential and commercial dishwasher. They have similar dimensions and sizes to residential models. Even though they’re a similar size they’re still quicker and have more room.

Do I Need a Commercial Dishwasher?

Most places that are cafeterias, restaurants, or bars will need a commercial dishwasher. The main benefit of a commercial dishwasher is its speed.

Commercial dishwashers can move much faster and require less drying time. They’ll be able to catch up with the needs of your business or restaurant. You’ll be able to wash a load a minute and won’t have to stop to wait for plates to be ready.

The Different Types of Commercial Dishwashers

The 1st option is a conveyor dishwasher. They can process about 100-300 racks each day.

If you’re a smaller kitchen or bar then an under-counter commercial dishwasher might be the right option. They can clean about 20-30 racks per day.

Smaller types of conveyors are door-type commercial devices. They can connect to clean dish tables or dirty dish tables.

Low-temp appliances rinse and wash your dishes between 120-140 degrees by using water with chemical agents. High-temp appliances use about 150-160 degrees. They also sanitize at about 180 degrees.

Since commercial dishwashers come in a variety of different choices, you can invest in a commercial dishwasher that’s specifically made for a bar, restaurant, etc. You could also buy additional glass washing racks for it as well.

The Different Types of Residential Dishwashers

Dishwasher drawers can have a double or single drawer. They’re great for 2nd kitchens or a few dishes.

Countertop dishwashers are compact since they can sit right on your countertop. They’re perfect for smaller kitchens.

Built-in dishwashers are a good option for couples or families. They’re about 18-24 inches.

Using a Commercial Dishwasher at the House

If you’re looking to clean dishes fast then a commercial dishwasher might be right for your home. The dishes will also be better sanitized.

They are quite loud though. Since they require 240 VAC, you’ll have an additional cost.

Since many of them don’t have a drain pump you’ll need a gravity drain. It’ll need to be on the floor for the appliance to properly drain.

Gallons of bottles of chemicals will need to be bought for the chemical sanitizing. Another con is that you’ll always have a gallon of dirty water in the bottom of the dishwasher. While it might be used again in a restaurant, it might go for days in a home without being used.

Your dishes will come out soaking wet since these machines don’t always dry the items. You’ll need an area to place the plates and rack for them to air dry.

A Comparison Between Home and Commercial Dishwashers

After exploring this guide, you should have a better idea of the differences between residential vs commercial dishwashers. Take your time deciding which is best for you and your family.

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