Cold fill vs hot fill washing machines….
It’s time to settle the score
When it comes to buying a washing machine, there are many factors to consider, including the type of fill system you want.
Cold fill and hot fill washing machines are the two main options available, and each has its own set of advantages and disadvantages.
Cold fill washing machines are becoming increasingly popular due to their energy efficiency and lower running costs.
These machines only use cold water to wash clothes, which means that they don’t need to heat up water, saving on energy bills.
On the other hand, hot fill washing machines use both hot and cold water to wash clothes, which can be more convenient if you have a hot water supply available.
However, hot fill washing machines can be less energy efficient, as they require more energy to heat up the water.
In this article, we will explore the differences between cold fill and hot fill washing machines, how they work, and the pros and cons of each.
Key Takeaways
- Cold fill washing machines are more energy efficient and have lower running costs, while hot fill washing machines can be more convenient if you have a hot water supply available.
- Cold fill washing machines only use cold water to wash clothes, while hot fill washing machines use both hot and cold water.
- Hot fill washing machines can be less energy efficient, as they require more energy to heat up the water.
Overview Of Cold Fill Vs Hot Fill Washing Machines
When it comes to buying a washing machine, one of the most important decisions you’ll have to make is whether to choose a cold fill or hot fill model.
Both types of washing machines have their own advantages and disadvantages, so it’s important to understand the differences between them before making a decision.
Cold fill washing machines are connected directly to your home’s cold water supply. They draw water from this supply and heat it up as needed to wash your clothes.
These machines feature a range of cooler wash cycles that are designed to use cooler water. One of the main advantages of cold fill washing machines is that they are more energy-efficient than hot fill models.
This is because they don’t require a separate hot water supply, which means they use less energy overall.
On the other hand, hot fill washing machines are connected to both your home’s hot and cold water supplies.
They draw water from both supplies and mix them together to achieve the desired temperature for each wash cycle.
Hot fill washing machines are generally considered to be more effective at cleaning clothes, especially when it comes to removing tough stains and dirt.
They also tend to be faster than cold fill models, as they don’t need to heat up the water before starting a wash cycle.
However, hot fill washing machines are generally less energy-efficient than cold fill models.
This is because they require a separate hot water supply, which means they use more energy overall. They also tend to be more expensive to buy and install than cold fill washing machines.
How Cold Fill And Hot Fill Washing Machines Work
When it comes to washing machines, there are two types of fill systems: cold fill and hot fill. Each system has its own unique way of working.
Cold Fill Washing Machines
Cold fill washing machines are designed to draw water directly from your home’s cold water supply. The water is then fed into the drum of the washing machine through the inlet hoses.
The drum is the part of the washing machine where you place your clothes.
Once the drum is filled with water, the washing machine will add detergent and begin to agitate the clothes.
During the wash cycle, the heating element in the washing machine will heat the water to the desired temperature.
Cold fill washing machines can still wash clothes on a hot wash, but the cold water is heated within the machine as and when needed.
Hot Fill Washing Machines
Hot fill washing machines work differently from cold fill washing machines.
Instead of drawing water directly from your home’s cold water supply, hot fill washing machines use the hot water already heated and stored in your home.
This means that the water is already at the desired temperature, and the washing machine does not need to heat it further.
The hot water is fed into the drum of the washing machine through the inlet hoses. Once the drum is filled with water, the washing machine will add detergent and begin to agitate the clothes.
Hot fill washing machines are generally quicker than cold fill washing machines because they do not need to heat the water.
Combination Boiler
If you have a combination boiler, you may be wondering whether you should choose a hot fill or cold fill washing machine.
Combination boilers are designed to heat water on demand, so you may think that a cold fill washing machine is the best option. However, hot fill washing machines can still be used with combination boilers.
Hot fill washing machines use less electricity than cold fill washing machines because they do not need to heat the water. This means that they are more energy-efficient and can save you money on your energy bills.
Inlet Hoses
Inlet hoses are an important part of both cold fill and hot fill washing machines. They are the pipes that connect the washing machine to your home’s water supply.
Inlet hoses come in a range of lengths, so you can choose the right size for your washing machine and plumbing.
Heating Element
The heating element is a crucial part of a cold fill washing machine. It is responsible for heating the water to the desired temperature during the wash cycle.
Without a heating element, a cold fill washing machine would not be able to wash clothes on a hot wash.
Pros And Cons Of Cold Fill Washing Machines

If you’re in the market for a new washing machine, you may be wondering whether to go for a cold-fill or hot-fill model.
Cold-fill washing machines are becoming increasingly popular due to their energy efficiency and environmental friendliness. However, there are still some pros and cons to consider before making your purchase.
Pros
- Energy Savings: Cold-fill washing machines use less energy than hot-fill machines. This is because they don’t require as much electricity or gas to heat the water. As a result, you can save money on your energy bills over time.
- Environmental Benefits: Cold-fill washing machines are more eco-friendly than hot-fill machines. By using less energy, they produce fewer greenhouse gas emissions and help to reduce your carbon footprint.
- Colour Protection: Cold water can help to protect the colour of your clothes. This is because hot water can cause dyes to bleed and fade, especially in darker fabrics.
- Material Preservation: Cold water can also help to preserve the quality of certain materials, such as polyester. Hot water can cause these materials to shrink or warp over time.
Cons
- Germs and Bacteria: Cold water may not be as effective at killing germs and bacteria as hot water. This can be a concern if you’re washing items that are particularly dirty or contaminated.
- Wear and Tear: Cold water may not be as effective at removing dirt and stains from clothes. As a result, you may need to wash your clothes more frequently, which can lead to more wear and tear on your machine.
- Boil Washes: Cold-fill washing machines may not be as effective at performing boil washes, which require very hot water. However, most consumers hardly (if ever) use the boil wash program.
- Spares and Repairs: Cold-fill washing machines may be harder to repair or find spares for, as they are not as common as hot-fill machines.
Overall, cold-fill washing machines are a great choice for those looking to save energy and reduce their environmental impact.
However, it’s important to consider the potential drawbacks before making your purchase.
If you have any frequently asked questions or concerns about cold-fill washing machines, it’s always best to consult with a professional.
Pros And Cons Of Hot Fill Washing Machines
When it comes to washing machines, you might have heard of hot fill washing machines. These machines use hot water from your home’s heating system to wash your laundry.
Pros
- Effective Stain Removal: Hot water is known to be more effective at removing tough stains, especially those caused by oil and grease. If you often deal with oily or greasy laundry, a hot fill washing machine might be a good option for you.
- Saves Energy and Money: If you have a solar water heating system, using hot water from your home’s heating system can save you money on your energy bills. It’s also more economical to heat the water in your home than in your washing machine.
- Good for Delicate Fabrics: Some fabrics, such as silk, lace, and wool, require a gentle washing cycle with warm or cool water. With a hot fill washing machine, you can still use warm or cool water for delicate fabrics, without having to worry about the machine heating the water too much.
- Reduces Wrinkles: Washing clothes in hot water can reduce wrinkling, which saves you time on ironing.
Cons
- Risk of Shrinkage: Hot water can cause some fabrics, such as spandex, nylon, and rayon blends, to shrink. Make sure to check the label on your clothing before washing it in hot water.
- Not Suitable for All Fabrics: Some fabrics, such as synthetic fabrics, may not be suitable for hot washes. Always check the label on your clothing before washing it in hot water.
- Can Cause Damage: Hot water can damage some seals and parts in your washing machine over time, leading to leaks and other problems.
- May Not Remove All Stains: While hot water can be effective at removing some stains, it may not work for all types of stains. Biological detergents, enzymes, and rinse cycles can also help remove tough stains.
Best Cold Fill Washing Machine
If you are looking for the best cold fill washing machine, you have come to the right place. Cold fill washing machines are becoming increasingly popular due to their energy efficiency and effectiveness in cleaning clothes.
Samsung WW90T554DAX

The Samsung WW90T554DAX is a great option for those looking for a high-tech and energy-efficient cold fill washing machine.
It comes with a 9kg drum capacity, which is perfect for large families.
The machine features Samsung’s EcoBubble technology, which mixes air, water, and detergent to create bubbles that penetrate clothes faster and more effectively.
This machine also comes with an A+++ energy rating, which means it is highly energy-efficient.
Best Hot Fill Washing Machine
If you’re in the market for a washing machine that uses hot water to clean your clothes, there are several options available to you.
LG F4V910WTS
The LG F4V910WTS is a high-end washing machine that uses hot water to clean your clothes. It has a large 10.5 kg capacity and a range of features that make it easy to use.
With its TurboWash technology, this washing machine can wash your clothes in just 39 minutes, saving you time and energy.
It also has a range of programmes to choose from, including a steam cycle, a baby care cycle, and a duvet cycle.

Founder of homeappliancegeek.com, avid cook, and lover of Asian food.
Signature dishes include Thai Red Curry, Chicken Saag, Bibimbap and Sushi.
Massive clean freak; a habit baked-in after spending 9 years in the catering industry.
The one appliance he couldn’t live without? Easily the dishwasher (total relationship saver!).


