---
title: "What Is Gas heater? Pool Glossary | Marina Pool Services"
description: "A gas heater burns natural gas or propane to heat pool water quickly. Plain-English pool glossary from Marina Pool Services in Grapevine, TX."
url: https://marinapool.multisites.ai/glossary/gas-heater
publisher: Marina Pool Services
phone: +1-817-896-1120
quote: https://marinapool.multisites.ai/contact
---

Equipment

# Gas heater

A gas heater burns natural gas or propane to heat pool water quickly.

A gas heater heats water fast, whatever the air temperature. That makes it handy for cold snaps and for a spa. It burns natural gas or propane in a combustion chamber.

Common problems include failure to ignite, shutting off during use, or error codes. Causes include a dirty [igniter](https://marinapool.multisites.ai/glossary/igniter), a stuck [pressure switch](https://marinapool.multisites.ai/glossary/pressure-switch), or low water flow. Do not open the gas side yourself. Gas work is for a qualified pro. If you smell gas, leave and call the gas company.

[Marina can helpPool Heater Repair & Installation](https://marinapool.multisites.ai/our-services/pool-heater-repair)

## Related terms

-   [Pool heater](https://marinapool.multisites.ai/glossary/pool-heater)
-   [Heat pump](https://marinapool.multisites.ai/glossary/heat-pump)
-   [Igniter](https://marinapool.multisites.ai/glossary/igniter)
-   [Pressure switch](https://marinapool.multisites.ai/glossary/pressure-switch)

## Need a hand with your pool?

Call or text and tell us what your pool needs. Estimates are free for qualifying services, and same-day estimates are possible when the schedule allows.

[Call (817) 896-1120](tel:+1-817-896-1120)[Get a quote](https://marinapool.multisites.ai/contact)

![A pool technician working on an equipment pad](https://marinapool.multisites.ai/_astro/technician-equipment-pad.BW5xZMNY_Zum1K5.webp)