When it comes to cleaning tasks (be it big or small), a pressure washer is an indispensable option. These machines use high-pressure water jets to remove dirt, grime, mold, and even paint from surfaces like driveways, decks, siding, and vehicles.
Electric and gas pressure washers dominate the market. Electric pressure washers, powered by an electrical outlet, are typically lighter, quieter, and easier to operate. These machines are useful for light to medium-duty tasks such as cleaning patios, vehicles, and small decks. On the other hand, gas-powered pressure washers deliver higher water pressure and flow rates. They are suitable for more demanding jobs like stripping paint or cleaning large areas such as driveways and siding.
But the main question is – whether you should go for an Electric Pressure Washer or a Gas Pressure Washer.
This dilemma is pretty common among most of the consumers while making the purchase (especially first-time buyers). So, we have come up with a detailed analysis that showcases a comprehensive Electric vs. Gas Pressure Washer comparison.
Have a clear run through the information to know which option is the right choice for your requirements. But before going into the comparison, let us take a quick look into the models first.
How Pressure Washers Work?
Pressure washers use a high-powered water stream to clean surfaces efficiently. These machines rely on several key components that help in generating the necessary force and water flow for effective cleaning.
Components of a Pressure Washer
- Motor (Electric or Gas Engine): At the heart of every pressure washer, you will find a motor or engine that powers the system.
- Pump: The pump acts as the middleman between the water source and the spray nozzle. After the motor or engine turns on, it drives the pump to pull water from an external source. The pump then pressurizes the water before pushing it out through the nozzle.
- Hose and Nozzle: The hose and nozzle determine how the pressurized water reaches the surface being cleaned. The nozzle at the end of the hose controls the spray pattern and the intensity of the water stream.
- Detergent System: Some pressure washers have a built-in detergent system, which adds cleaning solutions to the water stream.
How Pressure is Generated?
The process of generating pressure begins when the motor or engine activates the pump. The pump draws water from a connected source, such as a garden hose, and compresses it. Once compressed, the water builds up pressure, which the pump then forces out through the hose. The motor’s power plays a huge role in determining the pressure’s strength.
Two critical metrics define a pressure washer’s cleaning power: PSI (Pounds per Square Inch) and GPM (Gallons per Minute).
PSI is a measure of the force of the water i.e., how much pressure the machine can apply to a surface. GPM is a measure of the flow rate i.e., how much water the pressure washer delivers per minute.
Overview of Electric Pressure Washer
Electric pressure washers have become a popular choice for homeowners and small business owners who need a simple and effective cleaning tool. As the name suggests, they operate by using an electric motor to drive a pump that forces water through a nozzle at high pressure.
Most electric pressure washers have a power or rather pressure range between 1,300 to 2,300 PSI while the GPM usually falls between 1.2 to 1.6. This combination of PSI and GPM makes the electric models ideal for washing common household items like cars, outdoor furniture, barbecue grills, small patios, and decks.
With their moderate pressure, you can use electric pressure washers to clean surfaces effectively without causing any damage. This makes them suitable for delicate surfaces like windows, siding, or painted walls. For occasional users who are looking for a convenient, low-cost, and minimal maintenance, electric pressure washers are a solid choice.
Benefits of Electric Pressure Washers
- They are lightweight, portable, and easy to use.
- Electric pressure washers are smaller in size (they take up less storage space).
- These models can be used in enclosed spaces without fear of carbon monoxide poisoning (as they don’t produce exhaust gasses).
- They are less expensive than gas models (typically between $100 to $250).
- Electric pressure washers have less maintenance (no oil changes). They occasionally need nozzle cleaning and hose inspection.
- There is no need to worry about filling gas tanks (since they run on electricity).
- They generate significantly less noise while operating.
Drawbacks of Electric Pressure Washers
- One of the primary drawbacks of electric pressure washers is their lower pressure output, which may not be sufficient for heavy-duty tasks like removing tough grease, paint, or large amounts of grime.
- Electric pressure washers need a continuous power supply. They need to be plugged into an outlet, which can restrict their range. Most models come with a power cord that is 25 to 35 feet long. You can move the power source to cover a larger area or use an extension cable.
- Reliance on a cord can reduce mobility.
Overview of Gas Pressure Washer
Gas pressure washers operate with a gas engine that powers a pump to create high water pressure. Unlike electric models, they do not require a direct connection to an electrical outlet. Gas pressure washers are much more powerful than electric washers and often have a better build quality (as they are made of aluminum and steel).
Portability is not an issue with gas pressure washers as they do not have to be plugged into a socket all the time. However, these are quite heavy and will wear you out.
Their engines can typically produce water pressure between 2,000 and 4,500 PSI and a GPM of 2.5 and 4.0. As a result, they are used for demanding tasks that lighter electric models cannot handle.
Homeowners with large outdoor spaces, such as big decks, patios, or driveways, can benefit from the power of gas pressure washers. They work efficiently in removing oil stains, mold, or algae from driveways and sidewalks.
Professionals in construction, landscaping, or property maintenance often use gas models for industrial-level cleaning, stripping paint, commercial vehicles, and building exteriors.
Benefits of Gas Pressure Washers
- The main advantage of gas pressure washers is their higher power output. They generate more PSI and GPM compared to electric models. This gives them more cleaning power and makes them better suited for demanding jobs.
- Since gas pressure washers do not require an electrical outlet, you can move them to any location.
- Gas models can handle a range of tasks, from removing dirt and mildew from siding to cleaning industrial equipment. They can strip paint or clean large surfaces like driveways and decks.
- They often have durable components designed to withstand heavy use and tend to last longer than their electric counterparts.
Drawbacks of Gas Pressure Washers
- They are heavier and bulkier compared to electric models.
- Gas pressure washers tend to be more expensive with prices starting around $300 and going upwards of $1,000. Beyond the initial investment, there will be an ongoing cost for fuel, oil changes, and maintenance.
- These units operate at significantly higher decibel levels compared to electric washers.
- Since gas pressure washers run on gasoline, they release exhaust fumes into the air. Users must operate them outdoors or in well-ventilated areas to avoid carbon monoxide buildup.
- Gas pressure washers demand regular oil changes, fuel level monitoring, and other general maintenance on the engine.
Comparison Between Electric and Gas Pressure Washer
| Variable | Gas | Electric |
| Water pressure | 2,000 PSI to 4,500 PSI | 1,300 PSI to 2,300 PSI |
| Cleaning unit | 5280 to 16000 | 1000 to 3200 |
| Temperature | Cold | Cold |
| GPM | 2.5 – 4 | 1.2 – 1.6 |
| Price | $300 – $600 | $100 – $300 |
Let’s look at the detailed description of each factor below for more clear understanding.
1. Power (PSI and GPM)
When comparing electric and gas pressure washers, power (water pressure and flow rate) is the first thing to consider. Electric pressure washers typically produce water pressure between 1,300 and 2,300 PSI, and they offer a flow rate of 1.2 to 1.8 GPM. This range works well for light to moderate cleaning tasks such as washing vehicles, cleaning outdoor furniture, or maintaining small patios. To ensure that your pressure washer works efficiently, it should have a nozzle with the ability to adjust the spray angle.
For homeowners handling routine cleaning jobs, an electric washer can provide enough pressure to remove dirt, grime, and mildew without damaging delicate surfaces like cars or painted walls.
Gas-powered pressure washers, on the other hand, deliver significantly more power. They usually generate 2,800 to 4,000 PSI water pressure and offer a flow rate of 2.5 to 4 GPM.
This higher power makes gas models better suited for heavy-duty jobs, such as cleaning large driveways, stripping paint, or washing tough surfaces like concrete and brick. This strength and efficiency are the main reasons why gas pressure washers are popular among contractors and for commercial use.
2. Cleaning Unit Rate
A cleaning unit (CU) typically measures the maximum pressure that a pressure washer can use. Higher cleaning capacity means the pressure washer is capable of providing superior cleaning. The cleaning range should be 2,000 or higher for household use.
The cleaning power of electric models is between 2,000 and 8,000. Gas-powered models typically have a cleaning range of 8,000 – 35,000. As the name implies, commercial-grade models usually come with higher cleaning units rating.
3. Portability
Convenience and portability differ significantly between electric and gas pressure washers. Electric pressure washers are usually lighter and easier to move. Weighing between 15 to 40 pounds, they can be transported easily from one location to another, making them a good choice for quick cleaning tasks around the house. Their compact design also makes them easier to store in small spaces, such as garages or sheds.
However, electric models require constant connection to a power outlet. The cord length usually ranges between 25 to 35 feet, which limits mobility, especially for larger yards or areas far from an outlet. Extension cords can be useful, but they also increase the risk of tangling or accidental disconnection.
Gas pressure washers, on the other hand, tend to be much heavier, often weighing between 50 to 100 pounds. Although some come with wheels for easier transport, they still require more effort to move around. The weight and bulk of a gas-powered model may make it less convenient if you need to carry it upstairs or maneuver it through tight spaces.
When it comes to mobility gas pressure washers offer complete freedom of movement since they don’t rely on a power cord. You can use them anywhere without worrying about proximity to an outlet. As a result, gas models are more suitable for large properties or remote locations without easy access to electricity.
4. Durability
There is a significant difference in durability between the two types. Gas pressure washers are more durable than electric pressure washers. To accommodate an engine, the frame of gas pressure washers is generally made from aluminum or steel. Electric pressure washers, however, have mostly plastic construction.
5. Noise Levels
Electric pressure washers operate much more quietly than their gas counterparts. The noise level of an electric washer typically falls between 50 to 70 decibels (comparable to the sound of a normal conversation or a dishwasher).
In contrast, gas pressure washers produce much more noise due to their powerful gasoline engines. These machines often operate at 85 to 100 decibels, similar to the sound of a lawnmower or motorcycle. You may need to wear hearing protection, especially during extended periods of use, to prevent hearing damage.
6. Maintenance
Electric pressure washers require little to no maintenance. Due to the lack of an engine. After each use, you might have to perform some basic cleaning such as checking the hoses and nozzles for blockages, storing the machine in a dry area, and occasionally inspecting electrical components for wear.
Gas pressure washers, on the other hand, require more frequent maintenance. You must change the oil regularly, refill the machine with gasoline, and maintain engine parts such as spark plugs and air filters. Storing a gas pressure washer during the offseason requires more preparation, such as draining fuel to prevent engine problems. Over time, you may also need to repair or replace worn-out components.
7. Cost
Electric pressure washers are generally more budget-friendly, with prices typically ranging from $100 to $300. They are an affordable option for homeowners who need a machine for light or occasional cleaning. Additionally, because they require minimal maintenance, the long-term cost of owning an electric pressure washer remains relatively low.
Gas pressure washers, by comparison, come with a higher price tag. Most gas models range from $300 to $600, but professional-grade units can exceed $1,000. In addition to the initial cost of the device, there is also a recurring cost in terms of maintenance (oil changes, spark plug replacements, and fuel expenses).
Electric vs. Gas Pressure Washer – Which One to Go For?
For homeowners who primarily need to clean small patios, garden furniture, and vehicles, electric pressure washers offer the ideal solution. These machines typically generate between 1,300 and 2,300 PSI of water pressure, which provides enough power to remove dirt and grime without causing surface damage. Many homeowners find this level of pressure sufficient for routine tasks such as washing outdoor furniture after winter storage or cleaning off mud and dust from a car.
Those who own large properties or frequently tackle outdoor cleaning projects will find gas pressure washers more suited to their needs. These machines generally deliver higher water pressure (ranging between 2,800 and 4,000 PSI). This makes them more effective for tougher cleaning jobs (driveways, house siding, and large patios that collect heavy dirt, oil stains, and grime).
As they do not rely on an electrical cord, homeowners can easily move around large driveways or across their properties without worrying about the limitations of an extension cord. There is also a freedom of mobility when an electrical outlet is unnecessary, especially when washing fences, decks, or siding located far from the house.
For contractors, commercial cleaners, and those handling industrial-level cleaning, gas pressure washers are a better choice. These professionals deal with demanding jobs that require significantly more power, durability, and time efficiency than typical household cleaning.
In construction sites or industrial environments, gas pressure washers can cut down on cleaning time because their power reduces the need for multiple passes over the same area. The heavy-duty construction of gas washers also withstands harsh work environments, including extreme heat, rain, or prolonged use over long hours.
If you live in a noise-sensitive or environmentally conscious area, electric pressure washers are a better choice. Urban and suburban settings often come with stricter noise regulations, and the loud operation of gas-powered models can disrupt neighbors or violate local noise ordinances.
Electric models don’t produce any emissions. This characteristic is important in areas with strict environmental guidelines or for individuals who prioritize reducing their carbon footprint.
Conclusion
Between the electric pressure washer and gas pressure washer, there is no right choice as it depends on your needs and requirements. Both have their advantages and disadvantages. It is up to you to decide based on what you use it for, how frequently you plan on using it, power requirements, noise, and importantly cost.
An electric pressure washer is sufficient for smaller jobs. If you require a pressure washer for more complex, in-depth tasks, you might have to go with a gas pressure washer.
We hope that this guide could help you understand the many unique features and uses of both electric and gas pressure washers. If you have any questions or queries, make sure to post them in the comments section. We are happy to assist you!
