Skip to content

Cart

Your cart is empty

Choosing a Tankless Water Heater: Types & Factors to Consider for Efficient Home Heating

Choosing a Tankless Water Heater: Types & Factors to Consider for Efficient Home Heating

The Best Guide for Choosing the Right Tankless Water Heater for Your Home 

Tankless water heaters, also known as on-demand water heaters, have gained popularity in recent years due to their energy efficiency, space-saving design, and ability to provide hot water on demand. Unlike traditional tank water heaters, which constantly heat and store a large amount of water, tankless water heaters heat water only when it is needed, which results in less energy consumption and lower utility bills. 


Types of Tankless Water Heaters

Gas Tankless Water Heater:
Gas tankless water heaters use natural gas or propane to heat water and are suitable for whole-house use. They provide a higher flow rate of hot water than electric tankless water heaters, making them a more efficient option for larger households. However, gas tankless water heaters require proper ventilation and professional installation.

Whole-house Tankless Water Heaters:
As the name suggests, whole-house tankless water heaters are designed to provide enough hot water for the entire household. They have a higher flow rate and can handle high hot water demand. However, they require professional installation due to their complexity and may require an upgrade to the gas line or electrical system.

Point-of-use Tankless Water Heaters:
Point-of-use tankless water heaters are installed close to the point of use, such as under the sink or in the bathroom. They are ideal for small homes or specific areas of a larger home that require hot water. They are also energy-efficient and can save on water heating costs.

Condensing Tankless Water Heaters:
Condensing tankless water heaters use a secondary heat exchanger to increase efficiency and reduce energy consumption. They are ideal for larger households with high hot water demand and are more energy-efficient compared to non-condensing tankless water heaters.

Recirculation Water Heaters:
Recirculation water heaters are designed to provide hot water quickly by recirculating hot water back into the system. They are ideal for larger homes or commercial buildings with high hot water demand. However, they require additional plumbing to recirculate the water and may increase water heating costs.


Factors to Consider when Buying a Tankless Water Heater


Size of the Unit:
In determining the right unit size, consider the number of people in your household and the amount of hot water required. Here, a professional installer can help you select the best size that meets your household's hot water needs.

Water Flow Rate:
The flow rate defines the amount of hot water the unit can deliver at a specific time. If you require hot water in multiple rooms simultaneously, choose a unit that offers a high flow rate, measured in gallons per minute (GPM).

Efficiency Rating:
Check out the unit's Energy Factor (EF) rating to ensure you select an energy-efficient model. Choosing a tankless water heater with a high EF means lower energy consumption and costs, providing long-term savings.

Temperature Settings:
Units with adjustable temperature settings allow you to control the output of hot water and save energy.

Cost Factor:
It's essential to consider the total cost of the unit, installation, and ongoing maintenance when selecting a tankless water heater. Although they have a higher upfront cost than traditional water heaters, a tankless system's energy efficiency can lead to significant savings in the long run.

Home Type and Frequency of Use:
The type and age of your home can play a role in selecting the right unit, especially if you desire whole-house water heating. Additionally, your hot water usage pattern, the frequency of the unit's use, and the hardness of water can affect performance and durability.


Frequently Asked Questions

What is a tankless water heater?

A tankless water heater is a device that heats water as it passes through a heat exchanger or heating element, providing hot water on demand without the need for a storage tank.

How do tankless water heaters work?

Tankless water heaters use a heat exchanger or heating element to rapidly heat water as it passes through the unit. This allows the system to provide hot water on demand without the need for a storage tank.

What is the lifespan of a tankless water heater?

The lifespan of a tankless water heater can vary depending on several factors, including usage, maintenance, and the quality of the unit. However, most tankless water heaters can last up to 20 years or more with proper care.

How much does a tankless water heater cost?

The cost of a tankless water heater can vary depending on the brand, model, and features. On average, a tankless water heater can cost anywhere from $500 to $3,000 or more.

What size tankless water heater do I need?

The size of the tankless water heater you need will depend on several factors, including the size of your home, the number of people living in the home, and your hot water usage habits. A professional can help you determine the appropriate size for your needs.



Tecasa understand the importance of having a reliable and efficient water heater for your home. When it comes to choosing a tankless water heater, there are several factors to consider such as the size of the unit, water flow rate, efficiency rating, temperature settings, and cost. Additionally, it's important to understand the different types of tankless water heaters available, including electric, gas, whole-house, point-of-use, condensing, and recirculation heaters.


We believe that investing in a tankless water heater can provide significant benefits for your home, including energy savings, improved water quality, and increased convenience. However, it's important to choose the right unit for your specific needs and budget.


At Tecasa, we offer a wide range of tankless water heaters from top brands to meet your unique requirements. Our team of experts can help you navigate the various options and choose the best unit for your home. With our quality products and exceptional customer service, you can trust Tecasa for all of your water heating needs.