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Tankless Water Heater Buying Guide

A tankless water heater mounted on wall.

Published February 6, 2025

In recent years, tankless water heaters have become a popular alternative to traditional models. Also called on-demand or spontaneous water heaters, tankless designs heat water only when needed. They can reduce energy consumption and take up less storage space than water heaters with large tanks.

This guide explores how to choose between the different types to find the best tankless water heater for your home.

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Table of Contents

  1. Benefits of Tankless Water Heaters

  2. Choosing the Right Tankless Water Heater

  3. Tankless Water Heater Installation and Maintenance

  4. Gas vs. Electric Tankless Water Heaters

  5. Non-Condensing vs. Condensing Tankless Water Heaters

  6. Point-of-Use Tankless Water Heaters