Home Blog Buyer's Guides All-In-One Countertop Reverse Osmosis System That Cools, Heats, And Purifies

All-In-One Countertop Reverse Osmosis System That Cools, Heats, And Purifies

Dr. Jonathan Doyle - Updated June 11, 2023
A water cooler is common in most American homes and offices because many people prefer their water to be ice-cold. However, cold water is more accessible with a water cooler dispenser. These water systems are designed to provide purified cold and hot water on request with an inbuilt water purifier.
If you are in a city where the municipal water is not exactly clean, choosing a hot and cold water dispenser can protect you from the harms of contaminated water and provide you with purified drinking water on request.

How Does A Water Cooler Dispenser Cool Water?

A compressor-based cooling process drives the cooling process in most water coolers. The refrigerant gas in these cooling systems is compressed, cooled, and expanded to achieve a cooling effect. The expansion of the refrigerant causes more heat absorption from the environment, including the water in the cooler, leading to faster and more efficient water cooling. As a result, water coolers running on a compressor-based cooling system hits colder temperatures faster than those with a semiconductor cooling system.
The semiconductor cooling process is less efficient at cooling water because it relies on the flow of electricity to transfer heat. The decreased efficiency and higher operating costs make these systems less popular among American homeowners.
 two glasses of ice water on a table

What Are The Types of Water Coolers?

Water coolers come in different forms and models, including:

Refrigerator Filters

Refrigerator filters are built into the refrigerators and designed to dispense cold water from the door. You will find it in households where the refrigerator includes an inbuilt water dispenser.
    • Advantages:
The major benefit of using a refrigerator filter is convenience. You can get cold water on request without necessarily installing another water cooler. Maintenance is also simple, and filter replacement is seamless.
    • Disadvantages:
Refrigerator filters do not deliver the same filtration and purification level as other water coolers, like reverse osmosis coolers. The refrigerator may also affect the water taste and quality if improperly maintained.

Bottled Water Cooler

This type of water cooler has a large water bottle on the top. It dispenses filtered cold water through a spout. It is commonly found in schools, offices, and other commercial areas because it is designed to provide large volumes of water.
    • Advantages:
The primary advantage of having a bottled water cooler is the ease of setup and usage. You can install it without any additional plumbing or installation knowledge. They are compact and made for easy movement. You can get them in various sizes depending on where you are installing them.
    • Disadvantages:
Regarding the cons, this type of water cooler is expensive—both for first purchase and subsequent water bottle replacement. In addition, replacing the bottles can be tricky for most users, and the dispensed water may not be as pure as what you get from other water coolers.

Bottleless Water Cooler

Unlike bottled water cooler, bottleless water cooler connects directly to the water supply instead of bottles of water. They may come with a water reservoir or tank, meaning you can use them without directly connecting them to the water supply.
    • Advantages:
These water coolers are more cost-effective than bottled water coolers considering you do not incur expenses on additional water bottles. They also remove the need for plastic bottles, making them environmentally friendly.
    • Disadvantages:
However, you may need a professional plumber to install a direct-connect bottleless water cooler, which may increase the initial cost. The presence of a water reservoir or tank also means you must clean and maintain the system regularly to ensure the best water quality.
a glass of ice lemon water

Why Are Bottleless Reverse Osmosis Water Coolers Better?

Reverse osmosis (RO) technology is an advanced water purification process. It relies on a semipermeable membrane to separate ions, molecules, and larger particles from the molecules of pure drinking water. It has applications in the pharmaceuticals, beverage, food, and electronic industries.
Unlike other water coolers, RO bottleless water cooler offers many benefits, including:

The purification performance is advanced.

You can trust the reverse osmosis water cooler to thoroughly remove harmful impurities and contaminants, ensuring your cold or hot water is free of lead, fluoride, arsenic, chlorine, and others. This gives you healthy, safe, and great-tasting water.

It is easy to operate and maintain.

Unlike other water cooler types, reverse osmosis water filter offers more user convenience. Due to its compactness, you do not have to change bottles frequently, and it is easier to clean and maintain. As a result, you can rest assured of clean and fresh water with minimal effort.

It is environmentally friendly.

The eco-friendly nature of bottleless reverse osmosis water coolers makes them a good choice for people who prioritize sustainability. In addition, it does not require plastic water bottles to operate, thereby removing waste and the carbon footprint associated with bottled water.

It is cost-effective.

Despite having a higher initial cost than other water coolers, bottleless RO coolers are more cost-effective in the long run. You spend less on maintenance due to the long service life of the RO membrane. It is also easier and cheaper to replace other filters.

The Waterdrop A1 Reverse Osmosis Water Cooler Dispenser

Waterdrop has designed and manufactured this reverse osmosis hot cold water dispenser to help users to meet the demand for safe, refreshingly cold water and precise hot water. This flagship-level countertop water system is powered by an advanced purification technology that delivers efficient filtration every time.

Check out the release from Geeky Gadgets and New Atlas: 

Waterdrop Launches A1, the All-in-One Solution for Pure Hot and Instant Cold Water

The Waterdrop A1 RO Water Cooler Dispenser utilizes a state-of-the-art refrigerator-grade compressor as its cooling technology, ensuring optimal performance and reliability.
waterdrop hot cold water dispenser a1
With this advanced compressor, the dispenser is capable of reaching an impressively low temperature of 41℉, delivering refreshingly cold water whenever desired. This feature guarantees a truly satisfying and invigorating experience for users, meeting their demands for chilled water even on the hottest days.

waterdrop whole house water filter system

Key Features:
  • Plug-and-play design
  • Compressor-based cooling
  • Ice-cold water as low as 41℉
  • 6-stage deep filtration
  • OLED smart display
  • 2:1 low drain ratio
  • 3-sec instant heating
  • 5 cup volume options
  • UV sterilizing light
  • Child lock

To Round Up

If you are in the market for a system that conveniently offers purified and refreshing water at different temperatures, you can never go wrong with a reverse osmosis water cooler. You get an advanced filtration performance that eliminates harmful impurities while improving water quality and taste.
Install a reverse osmosis water cooler in your home or office, and never have to worry about clean and refreshing drinking water all day.


Contaminants Detected in  Fruitland Water Special Service District

30  Total Contaminants in Your Water

Water Provider

Fruitland Water Special Service District

Population Affected


Water Source

Ground water
Exceeds Guidelines

Others Detected

See What's in Your Tap Water
Choose Your Water Solutions