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Hot Water Pressure Washers

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We stock everything, including Hot Water Pressure Washers, Jetters & Jetting Accessories, High Pressure Washers, BAR Pressure Washers, Spare Parts, Hoses & Accessories.

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Our In-Store Range of Hot Water Pressure Washers

Product AVANT Professional Hot
BAR Avant Professional Hot Water Pressure Cleaner. Features: Bypass Valve, Thermostat for ... read more
Product Petrol Hot Pressure Washer
The HDB Series is a small, compact mini skid that installs easily ... read more
Product Scout 150 E
Comet electrical pump with pump at the bottom and an all metal ... read more

Why Use a Hot Water Pressure Washer?

Hot Water Pressure Washers remove oil and grease from surfaces just as easily as a cold water pressure washer can break up dirt. The advantage of using hot water pressure washers/cleaners is that they break down the bonds that exist on a molecular level in oil and grease. This can rid surfaces of bacteria, algae and other things more effectively due to the heat they distribute.

Often larger than their cold-water counterparts, a Hot Water Pressure Washer uses pressurised water to clean surfaces, and are capable of creating water heated up to as high as 94 degrees Celsius (200 degrees Fahrenheit). This makes hot water pressure washers more effective when cleaning off oil, grease & more.

A hot water pressure washer offers extra cleaning power when needed most. These washers are also generally a better option in cold-weather climates where water lines have the potential to freeze. Some hot water washers can also meet sanitation requirements for food processing, making them a viable option for certain food service applications.


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How Do Hot Water Pressure Washers Work?

Hot water pressure washers/cleaners combine the exact pressure mechanisms as a standard pressure washer that uses cold water for cleaning. They are ideal for any type of cleaning job that cold water pressure washers aren’t manufactured to do, as long as the surface or item can have heated water used on it. They use gas or electricity to heat the water and run it through the pressure cleaner pump, allowing the heat of the water (or the steam in some cases) for efficient cleaning and performance.

They are frequently used in commercial cooking environments, factories, industrial cleaners and the transport industry. Specific models can sanitise due to the heat of the water they generate! Most small models use mains electricity, but many larger commercial cleaning models use gas. Gas supplies offer excellent benefits when working in an area that doesn’t have direct access to an electricity supply or when an electrical connection may pose a safety risk.

Product BAR Hot Pressure Cleaner SMART
Product Petrol Hot Pressure Washer

What Are the Benefits of using a Hot Water Pressure Washer?

Hot water pressure washers can cut through dirt, oily substances and grease, making them exceptional for transport and automotive industries. Some models can be used for sanitising, which makes pressure cleaners a popular choice in environments where food is cooked and leaves an oily or greasy residue. There are plenty of applications aside from the removal of grease.

Built-up residue on BBQs comes away easily with a hot water pressure washer. Patio stains are easily cleaned, and ovens can be returned to their former glory (depending on their surface- please check with your manufacturer!). Hot water pressure washers are also designed to bring outdoor surfaces back to life. This may be an oil-stained driveway, a patio with algae or moss needing removal and even killing weeds without the need for chemicals.


What Are the Uses for Hot Water Pressure Washers?

Hot water pressure washers are ideal for many commercial and domestic cleaning jobs. They are often used for tasks requiring grease and oil removal from a hard surface. This may be cleaning build-up from a patio at home or at a business premise, used in a commercial kitchen or the automotive and transport industry, to cut through layers of grime that cold water pressure cleaners just can’t do.

They are built for robust performance in these areas and offer a high-pressure cleaning ideal for caked-on oil-based dirt and grime. It’s the same science as with a regular cleaning job like cleaning a BBQ or fry pan filled with grease – cold water makes a mess of it! They are also great for commercial surfaces that may contain bacteria, with specific models of hot water cleaners able to sanitise as they clean.

It’s always best to check if they were manufactured for this purpose, though, as there is a wide variety of machines to choose from, and not all of them are built for the same performance levels.



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Frequently Asked Questions

What is the difference between cold and hot water pressure washers?

There are benefits to both in terms of cost and efficiency. For those that need to operate on a budget and have general cleaning duties, a cold water pressure works fine. However, a hot pressure washer is the better option for those needing to clean something quickly, especially with grease or oil. To get more information on which Pressure Washer is right for you, read our blog here.

Is it safe to use hot water while pressure cleaning?

It depends. With pressure cleaners that are designed for it, hot water will work exceptionally well. In others, it could potentially destroy the washer. These are washers that have been specifically designed for use with hot water. Trying to run a regular cold water pressure washer using hot water will cause problems.

That’s because regular water pressure washers are designed for use with water of a cooler temperature. If you’re using water that’s above 40 degrees in those, then you run the risk of damaging the interior. If you’re committed to using hot water when washing your driveway, you should invest in a hot water pressure washer.

Is a hot water pressure washer worth it?

Absolutely, if you frequently do cleaning that requires cleaning up of dirt, grime or grease. Hot water pressure cleaners are extremely useful in commercial environments and are manufactured to shift dirt and grease in a way cold water pressure washers cannot do. We stock various options that can meet a range of tasks, with certain models having additional power or pressure to capacity that meets the requirements of commercial cleaning.

When shopping for a hot water pressure cleaner, the four main things to look at are :

  • Performance: The PSI level (‘Pounds per square inch’ – a water pressure measurement) measures the pressure level of water.
  • LPM: Known as ‘Litres per Minute’, this measures how much water flow pressure washers are capable of. It is a powerful performance indicator, more so than PSI in many ways. ‘3000 PSI @ 20 Litres per Minute’ will give you a clear idea of how powerful your pressure cleaner is. A higher PSI and a higher LPM are ideal for commercial jobs. These two factors should be compared when purchasing a hot water high-pressure washer.
  • Motor: Gas or electric, the voltage, RPM, kW and HP all combine to indicate the power levels and performance capacity of different hot water pressure cleaners.
  • Pump Size & Type: There are a variety of pump speeds and sizes when it comes to hot water pressure cleaners. Commercial cleaning and frequent use require a high-quality pump, so it must be considered before purchase.
  • Maximum Heat: Hot water pressure washers used for general cleaning jobs are generally not needed for sanitisation. If a high-pressure cleaner is going to be used on machines in factories or commercial kitchens that require a certain heat output, you will need to choose one that has been designed for that purpose. It’s also important to understand your industry and state regulations in these areas when choosing a high-pressure device.
Can you pressure wash a house with hot water?

It depends on what your house is made out of! Using a hot-wash pressure washer can be a great option for the outer surfaces of your house. They are designed to be used on surfaces such as concrete, cement, stone, tiles, pavers and wood. High pressure is only suitable for some surfaces though, and different pressure levels and heat levels are needed for various purposes. Too much heat or pressure from your hot water pressure cleaner can damage materials, including glues and other items used to bond them. A necessary step before using high-pressure machines is understanding the care and maintenance requirements of what you intend to clean. They are not designed to be used at full power, or with the highest heat in many cases. Choosing the right pressure washer and the right settings is much easier when you know what surfaces you intend to use them on.

What safety precautions should I take when using a hot water pressure washer?

Care and respect are required when using pressure washers, whether private or commercial. They are high-performance machines and should be used with caution.

We suggest:

  • Keep well out of reach of children, at all times
  • Never direct the pressure washer at yourself, someone else, or an animal, as it can cause serious injury, especially when high heat is used.
  • Be very cautious of electrical cords when being used around water pressure washers
  • Refrain from using gas washers without adequate ventilation
  • Never attempt to push or move objects with spray from the washer.
  • If using extension cords, ensure they are in good repair and designed for use around water, and do not step on them or spray the pressure cleaner near them.
  • Ensure your pressure cleaner is well maintained, and that spare parts are supplied and installed by a professional. Have any issues attended to prior to use.
  • Wear the right safety gear, which may include eye protection, rubber boots
  • Wear rubber-soled shoes that provide some insulation when using the pressure washer.
  • Never cut or splice the pressure washer’s power cord or extension cords.
  • Never remove the grounding prong from the pressure washer’s power cord plug or the extension cord.
  • Always have a qualified electrician check the pressure washer for electrical problems after it has tripped a circuit breaker.
  • Never allow children to operate a pressure washer. Keep children at a safe distance when an adult is using a pressure washer.
How do I maintain and care for my hot water pressure washer?

It’s important to keep your hot water pressure cleaner well maintained, and ensure regular servicing.

This will prevent the need for expensive repairs longer term, and ensure that your hot water pressure cleaner is able to be used to its maximum capacity.

Check your maintenance schedule when you purchase an item and talk to your retailer about whether it needs to be brought in for services to maintain a warranty. Gas and electric pressure washers will have different care regimes, so it’s important to understand these before you start using your pressure washer.

Maintaining oil and fuel levels and testing individual parts such as the hose and the air filter is required. Many models can be routinely checked without needing a professional, but when it comes to servicing, it’s best to enlist help unless this is an area you are well versed in. It’s also wise to source spare parts from a reputable retailer, to ensure that they fit their intended purpose.

Does it hurt to run hot water through a cold pressure washer?

Yes! If a pressure washer was designed for cold water, running hot water through it isn’t a good idea at all. Hot water pressure cleaners were designed to withstand heat, standard pressure washers were not. Some standard pressure washers can be used with warm water (check your manual or ask your retailer!), but running hot water through a normal pressure washer is a recipe for disaster. You run the risk of damaging your pressure washer by overheating it, melting parts that aren’t heat resistant, and having an accident or serious malfunction. Cold water pressure machines are not intended for use with hot water, which is why hot water pressure cleaners were designed.

Can hot water pressure washers be used on all surfaces and materials?

No! Some surfaces will be damaged on contact by using a pressure washer, with hot or cold water. Using a hot water pressure cleaner increases the risk of damage, as they have been manufactured for certain purposes, rather than for general use.

Many commercial cleaners use hot water pressure washers for heavy-duty tasks, such as removing grease from commercial kitchens, cleaning factory surfaces and removing oil stains and grease from automotive and transport company driveways and workshops.

Using them on items or surfaces that aren’t heat resistant can result in damage, such as melting or loosening of grout or sealants. If in doubt, please refer to the cleaning instructions for the item in question.

Can hot water pressure washers be used indoors, or are they only for outdoor use?

Yes, some can – but please read our answer fully, and refer to the safety instructions for your device. Electric hot water pressure cleaners can be used indoors, and are frequently used in commercial kitchens and factories for high-quality cleaning results. They can also be used to sanitise surfaces, which makes them popular for cleaning areas that require a level of disinfection.

On the other hand, gas hot water pressure cleaners can be deadly to use indoors without ventilation, causing carbon monoxide poisoning. This can happen quickly, with no visible signs, due to the colourless escaping gas. Dizziness, fatigue and confusion can come on so quickly that a user is overcome before they are aware of what is happening. The use of any gas-powered appliance indoors is not advised, as the results can be fatal.

Are there any special techniques for using a hot water pressure washer effectively?

Always take a safety-first approach to hot water pressure washing. Never aim it at a person or animal, and be careful to never direct it towards yourself while using it. If you are using a detergent or cleaning mix with your pressure cleaner, please check that it is safe and suitable for use with a hot water pressure cleaner.

We recommend starting a hot water pressure wash from a good distance from the surface you are applying pressure to, around 90cm. If this isn’t sufficient, move the nozzle closer to the surface, but always leave around 15cm distance.

Always ensure that any surfaces being cleaned with a hot water pressure cleaner are suitable for use with heat.

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