# economizer

> English word · Noun

## Definitions
1. A person who avoids waste
2. A heat exchange device in a boiler that improves efficiency and saves fuel.

## Etymology
From economize + -er.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/economizer