Mejores calentadores de agua de alta eficiencia energética

Discover the most energy-efficient water heaters on the market, ideal for reducing consumption and saving on your utility bills. This guide explores options such as heat pump water heaters, tankless models, and ENERGY STAR certified units. Find the perfect system for your home, considering factors like fuel type, size, and energy-saving features. Make an informed decision to enjoy hot water worry-free and with a lower environmental impact.

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  1. 1

    A. O. Smith (Energy Efficiency)

    140 Global Votes

    A. O. Smith stands out for its wide range of ENERGY STAR® certified water heaters, including heat pumps, gas, electric, and tankless models. Its products deliver high energy-efficient performance, with some models achieving between 95% and 98% gross efficiency, leading to significant savings on water heating costs.

  2. 2

    Bosch

    96 Global Votes

    Bosch stands out for offering water heaters with exceptional thermal efficiency, with tankless models achieving between 95% and 98% efficiency, leading to significant energy savings. Their products are built with durable components, such as titanium elements, ensuring a long lifespan and reliable performance over time.

  3. 3

    EcoSmart ECO 27

    73 Global Votes

    The EcoSmart ECO 27 offers high energy efficiency as a tankless water heater that eliminates standby consumption, heating water only on demand. Its compact design allows for considerable space savings and it is capable of continuously supplying hot water for large homes, contributing to a more efficient use of resources.

  4. 4

    Rheem (Efficient Options)

    34 Global Votes

    Rheem offers a wide range of high-energy-efficiency water heaters, including models like the Maximus Super High Efficiency Gas Water Heater and ProTerra Heat Pump Water Heaters. Many of their products are ENERGY STAR-certified, ensuring lower energy consumption and significant savings on utility bills. The brand focuses on innovation to provide reliable and sustainable hot water solutions for the home.

  5. 5

    Stiebel Eltron

    7 Global Votes

    Stiebel Eltron is renowned for its electric tankless water heaters that operate at 99% efficiency, leading to substantial savings on energy costs. Their units provide continuous hot water on demand, eliminating standby energy losses associated with traditional tank-type heaters.

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  7. 6

    Navien Tankless Water Heater

    4 Global Votes

    Navien condensing tankless water heaters stand out for their exceptional energy efficiency, with models like the NPE-240A2 converting 95% of used energy into hot water. They provide an endless supply of hot water on demand and feature ComfortFlow® technology for consistent performance. Their ability to be vented with PVC and dual-exchanger design contribute to their reliability and lower operating costs.

  8. 7

    Ariston Velis

    1 Global Votes

    The Ariston Velis stands out for its twin-tank design and Wi-Fi technology, which optimize hot water availability and reduce waiting times. Its energy efficiency is enhanced by an ultra-slim design that allows for versatile installation and lower operating costs, making it an ideal choice for homes seeking savings and performance.

  9. 8

    IUSA Enerhit 05LT

    0 Global Votes

    The IUSA Enerhit 05LT offers high energy efficiency due to its high-recovery design, which minimizes waiting time and gas consumption. Its 5-liter capacity is suitable for a single shower service, providing continuous and reliable hot water. This water heater is a practical and economical solution for homes looking to optimize energy usage.

  10. 9

    Calorex 40 Liters (LP Gas)

    0 Global Votes

    This water heater stands out for its 40-liter capacity, ideal for a single service, and its design that ensures immediate and continuous hot water. It offers a 5-year warranty on the tank, highlighting its long-term reliability and durability, which are key aspects for energy efficiency.

  11. 10

    ZPL 08910

    0 Global Votes

    This electric fireplace heater provides an efficient heating solution for spaces up to 400 sq. ft., featuring 11 temperature settings for precise energy consumption control. Its 1400W and 5000 BTU per hour output delivers effective supplemental heat, contributing to optimized energy usage.

  12. 11

    Jnod

    0 Global Votes

    JNOD stands out for its instant electric water heaters, which offer 98% energy efficiency, significantly reducing consumption. The brand holds over 40 technology patents, including innovative heating elements that solve common problems of traditional systems, ensuring superior performance and enhanced durability.

Frequently asked questions

This ranking evaluates water heaters that stand out for their high energy efficiency, including types such as tankless water heaters, heat pump models, and ENERGY STAR certified units, based on their ability to reduce energy consumption and utility costs.
The results should be interpreted as a guide to identify water heaters that offer superior energy efficiency performance. Models that have been tested for their ability to heat water quickly and efficiently, and that can generate significant savings on energy bills, are highlighted.
Tankless water heaters are generally considered the most efficient because they heat water on demand. Heat pump models and ENERGY STAR certified units are also highly efficient, using different technologies to reduce energy consumption.

How we built this ranking and what to consider when choosing

Our methodology for ranking high-efficiency water heaters focuses on providing a clear overview of products that offer the best performance in terms of energy savings and operating costs. We rely on relevant contextual information to guide consumers toward informed decisions.

  • We consider energy efficiency as the primary criterion, prioritizing heaters that demonstrate lower energy consumption and greater savings on electricity or gas bills.
  • Water heaters that utilize advanced technologies such as tankless systems, heat pumps, and ENERGY STAR certification are valued for their superior efficiency.
  • The ability to provide hot water on demand and the speed of water heating are important factors, as they directly contribute to user convenience and overall system efficiency.
  • Brand reputation, warranty coverage, and the availability of additional features that enhance efficiency or functionality also influence our evaluation.
  • Heaters must demonstrate high energy efficiency, resulting in lower energy consumption and significant savings on utility bills.
  • Models incorporating advanced technologies such as on-demand heating (tankless), heat pumps, or those with ENERGY STAR certification are prioritized.
  • The heater's ability to provide a constant and rapid supply of hot water is a key factor, ensuring user comfort without compromising efficiency.
  • Long-term operating costs are considered, seeking heaters that, in addition to their initial efficiency, offer affordable maintenance and an extended lifespan.