: The "efficiency king" of 2026. These pull heat from the surrounding air to warm the water. They can be 3–4 times more efficient than standard electric tanks, often paying for themselves in energy savings within a few years. 3. Sizing Your System
: Often cited by plumbers as the "Contractor’s Choice" for its longevity and ease of service. which water heater to buy
The first crossroad is deciding whether you want to store water or heat it on the fly. : The "efficiency king" of 2026
: Simple and safe with no venting required. While standard electric tanks are cheap to buy, they are often the most expensive to run. : Simple and safe with no venting required
: These are the reliable workhorses. They have a lower upfront cost and are generally easier to install. However, they suffer from "standby heat loss" (reheating the same water all day) and can run out during back-to-back showers. Best for : Tight budgets and straightforward replacements.