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Why Choose Tankless Water Heaters?

Tankless Water Heaters - San Antonio Plumbing Pros texas

Tired of running out of hot water? Consider upgrading to a tankless water heater. They provide endless hot water, are energy-efficient, and take up less space. This post will cover everything you need about tankless water heaters, including their work, the types available, and installation options. Having enough information is essential before deciding if a tankless water heater suits your needs.

Understanding Tankless Water Heaters

Tankless water heaters heat water directly, eliminating the need for a storage tank. This saves energy and reduces costs. They are ideal for small spaces and new home construction, providing continuous hot water and lower energy expenses. Upgrading to a tankless water heater offers long-term benefits and is a practical choice for homeowners.

How Does a Tankless Water Heater Work?

Tankless water heaters utilize heat exchangers to heat water as it flows through the unit instantly. When hot water is turned on, the cold water passes through the system and gets heated on demand. This continuous flow of hot water provides an endless supply and is more energy-efficient than traditional storage tank heaters due to lower heat loss.

Comparing Types of Tankless Water Heaters

If you’re thinking of getting a water heater, it’s essential to know which type of water heater is for you. Gas tankless water heaters operate only when needed, offering cost-effective water heating. Electric tankless water heaters are ideal for point-of-use applications and smaller spaces, eliminating the need for a storage tank. Indoor units require ventilation, while outdoor units offer installation flexibility. Condensing tankless water heaters maximize energy efficiency by preheating cold water with exhaust gases. For your buying guide, consider fuel type, installation costs, and energy efficiency when selecting a tankless water heater.

Gas vs. Electric Tankless Water Heaters

Tankless Water Heaters - San Antonio Plumbing Pros texas

When comparing gas and electric tankless water heaters, consider their differences. Gas units provide hot water faster with a higher flow rate. Electric tankless water heaters are energy-efficient and cost-effective for areas without natural gas access. Gas units may have higher installation costs due to venting requirements, while electric units have a lower initial purchase price. The choice depends on energy costs and home heating needs.

Indoor vs. Outdoor Tankless Water Heaters

Tankless Water Heaters - San Antonio Plumbing Pros texas

When choosing between indoor and outdoor tankless water heaters, consider installation location, home structure, and climate. Indoor units need well-ventilated areas like utility rooms, while outdoor units save indoor space by mounting on exterior walls. Professional installation is required for both types. Outdoor heaters are protected from freezing, making them ideal for colder regions. The decision depends on the specific requirements and constraints of the installation location.

Condensing vs. Non-Condensing Tankless Water Heaters

Tankless Water Heaters - San Antonio Plumbing Pros texas

Consider energy efficiency and installation costs when choosing between condensing and non-condensing tankless water heaters. Condensing units capture exhaust gases for additional heat, increasing energy efficiency with a secondary heat exchanger. Non-condensing units release exhaust gases directly without utilizing the heat, resulting in lower energy efficiency. Understand these differences to select the right water heater based on your needs and budget.


Tankless water heaters offer numerous advantages over traditional tank-based systems. They provide endless hot water, are energy-efficient, space-saving, and have a longer lifespan. Consider fuel type, installation location, and condensing capability when comparing tankless water heaters. For the best performance and maintenance, it is advisable to opt for professional installation. Switching to a tankless water heater offers convenience, and cost savings, and reduces your carbon footprint. Invest in a tankless water heater for your home and make the smart choice.