Tankless Water Heaters: Point-of-use VS. Whole House Model

noritz-tankless-water-heater-nr83-dvc-altTankless water heaters are very efficient and very durable. A tankless water heater saves energy, and it can provide endless hot water when you need it. It also has smaller carbon footprint as it uses less materials and less prone to corrosion since there is no water tank.

If you’re shopping for tankless water heater, it’s important to determine which model best suits your needs, as each unit can be very costly. The unit and installation fees can cost up to thousand(s) of dollars – so it’s imperative for you to be aware of each type.

There are two basic types of tankless water heaters: point-of-use and whole house model. Both are small and take up significantly less room than traditional water heaters as either can be mounted on a wall, under a cabinet or in a closet. Both types also have the same technology but a different type of “flow rate” or gallons of water per minute (GPM). Point-of-use heater will provide water for your kitchen sink while a whole house heater can handle multiple bathrooms and kitchen.


Point-of-use models are least expensive and are designed to supply only a single outlet at a time – typically, below sinks or near showers. They are installed just right in the point where you need hot water running. They can be used to supply with water appliances such as washing machines or dishwashers.

Whole house heaters 

Whole house heaters are ideal when you want to supply the whole house with hot water – especially if you have a family that gets ready at the same time in the morning. They have higher GPM flow rate capacity and can handle demand for more than one fixture at a time. They heat water instantly and only when you require it -which saves you energy. Although it is more expensive than a point-of-use unit, it has a higher effectiveness and efficiency rate. Overall, you’ll save more money in the long run when using this type of tankless water heater.

If you need more information about tankless water heaters, repairs and installations, contact our friendly plumbers from Sin City Plumbing.

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