When you are searching for pressure washers, you need to ensure that you choose the type of washer based on its application. Some washers can wash with a lot of power, whereas others are not as powerful. Thus it is critical to ensure that you research the set of pressure washers based on your requirements, and consider all factors when making your purchasing decision. There are a few types of pressure washers that are suited for certain types of tasks, and it is also important to get a washer that suits the task that you need it for. For instance, petrol cold water pressure washers are used in situation where tough cleaning is required. Due to the petrol, these type of washers are also portable, and do not need an electrical outlet. They are ideal for large jobs where electrical outlets are not readily available. Electrical cold water pressure washers work for a variety of surfaces including bricks and awnings, vinyl and tar. Obviously, an electrical cord is required, and these types of washers work well for cleaning of dirt like mould and grime. There are certain cleaning jobs that require hot water, and you can obtain each of these above types of water pressure washers with a hot water model. Mobile hot water washers are obviously not as prevalent, as the heating of the water will add lots of extra weight to the washer, and this reduces the mobility of the machine.