--- title: Cartridge Heater FAQ's description: Backer Hotwatt answers frequently asked questions about cartridge heaters. image: https://marketing.hotwatt.com/hubfs/Imported_Blog_Media/Hotwatt%20FAQs.jpg --- [![Loval logo](https://marketing.hotwatt.com/hs-fs/hubfs/raw_assets/public/Hotwatt_October2021/images/Header-logo.jpg?width=277&height=243&name=Header-logo.jpg "Loval logo")](https://www.hotwatt.com/) - [Our products](https://www.hotwatt.com/our-products.html) - [Cartridge Heaters](https://www.hotwatt.com/our-products/cartridge-heaters.html) - [Micro-Cartridge Heaters](https://www.hotwatt.com/our-products/micro-cartridge-heaters.html) - [Air Process Heaters](https://www.hotwatt.com/our-products/air-process-heaters.html) - [Sun Rod Heater](https://www.hotwatt.com/our-products/sun-rod-heater.html) - [Tubular and Finned Tubular](https://www.hotwatt.com/our-products/tubular-and-finned-tubular.html) - [Glasrope ® & Foil Heaters](https://www.hotwatt.com/our-products/glasrope-r--foil-heaters.html) - [Crankcase Heaters](https://www.hotwatt.com/our-products/crankcase-heaters.html) - [Ceramic Heaters](https://www.hotwatt.com/our-products/ceramic-heaters.html) - [Strip and Finned Strip Heaters](https://www.hotwatt.com/our-products/strip-and-finned-strip-heaters.html) - [Band Heaters](https://www.hotwatt.com/our-products/band-heaters.html) - [Temperature Controlling Devices](https://www.hotwatt.com/our-products/temperature-controlling-devices.html) - [Miscellaneous Heaters](https://www.hotwatt.com/our-products/miscellaneous-heaters.html) - [Voltage Controlling Devices](https://www.hotwatt.com/our-products/voltage-controlling-devices.html) - [Stock Heaters](https://www.hotwatt.com/our-products/stock-heaters.html) - [Accessories](https://www.hotwatt.com/our-products/accessories.html) - [MARKETS](https://www.hotwatt.com/markets/markets-overview.html) - [MARKETS OVERVIEW](https://www.hotwatt.com/markets/markets-overview.html) - [Medical Devices & Systems](https://www.hotwatt.com/markets/medical-devices--systems.html) - [Railroad and Rail Transit](https://www.hotwatt.com/markets/railroad-and-rail-transit.html) - [SEMICONDUCTOR](https://www.hotwatt.com/markets/semiconductor.html) - [Photonics & Opto-Electronics](https://www.hotwatt.com/markets/photonics--opto-electronics.html) - [Automotive & Fuel Cells](https://www.hotwatt.com/markets/automotive--fuel-cells.html) - [Catalog](https://www.hotwatt.com/catalog.html) - [Blog](https://blog.hotwatt.com/blog) - [About Us](https://www.hotwatt.com/about-us.html) - [Contact Us](https://www.hotwatt.com/contact-us.html) - [Employment](https://www.hotwatt.com/employment.html) Search - [Our Products](https://www.hotwatt.com/our-products.html) - [Markets](https://www.hotwatt.com/markets.html) - [Catalog](https://www.hotwatt.com/catalog.html) - [Blog](https://blog.hotwatt.com/blog) - [About Us](https://www.hotwatt.com/about-us.html) - [Contact Us](https://www.hotwatt.com/contact-us2.html) - [Employment](https://www.hotwatt.com/employment.html) # Cartridge Heater FAQ's 6 December, 2021   Cartridge heaters are a popular solution used to heat endless applications. What are cartridge heaters? Cartridge heaters consist of a heated wire packed with inorganic powder and packed tightly into a metal tube. Also known as immersion heaters, there are many options and available sizes. [Download our Cartridge Heater FAQ](https://marketing.hotwatt.com/hubfs/Downloads/Cartridge%20Heaters%20FAQ-1.pdf) and read more on cartridge heaters and frequently asked questions including: - What are cartridge heaters - How cartridge heaters are made - Get the most efficient heat transfer and long life - Available cartridge heater options - Can cartridge heaters be used in liquids as immersion heaters - What are some of the termination options offered on cartridge heaters Backer Hotwatt manufactures both spec and custom cartridge heaters for industrial, medical, commercial, packaging, instrumentation, aviation, transportation, and refrigeration & air conditioning. [Click here to view the cartridge heaters product page.](https://www.hotwatt.com/our-products/cartridge-heaters.html) Have questions? We are here to help. Call us at (978) 777-0070 or email us at [sales@hotwatt.com](https://marketing.hotwatt.com/contact-us2.html). **Products** - [Tubular and Finned Tubular](https://www.hotwatt.com/our-products/tubular-and-finned-tubular.html) - [Temperature Controlling Devices](https://www.hotwatt.com/our-products/temperature-controlling-devices.html) - [Voltage Controlling Devices](https://www.hotwatt.com/our-products/voltage-controlling-devices.html) - [Miscellaneous Heaters](https://www.hotwatt.com/our-products/miscellaneous-heaters.html) - [Accessories](https://www.hotwatt.com/our-products/accessories.html) - [Stock List](https://www.hotwatt.com/our-products/stock-list.html) - [Strip and Finned Strip Heaters](https://www.hotwatt.com/our-products/strip-and-finned-strip-heaters.html) - [Glasrope ® & Foil Heaters](https://www.hotwatt.com/our-products/glasrope-r--foil-heaters.html) - [Crankcase Heaters](https://www.hotwatt.com/our-products/crankcase-heaters.html) - [Ceramic Heaters](https://www.hotwatt.com/our-products/ceramic-heaters.html) - [Cartridge Heaters](https://www.hotwatt.com/our-products/cartridge-heaters.html) - [Band Heaters](https://www.hotwatt.com/our-products/band-heaters.html) - [Air Process Heaters](https://www.hotwatt.com/our-products/air-process-heaters.html) - [Sun Electric Heater](https://www.hotwatt.com/our-products/sun-electric-heater.html) - [Heaters for Medical Devices](https://www.hotwatt.com/our-products/heaters-for-medical-devices.html) **Learn more** - [Our Products](https://www.hotwatt.com/our-products.html) - [Catalog](https://www.hotwatt.com/catalog.html) - [Technical Information & White Papers](https://www.hotwatt.com/technical-information.html) - [About Us](https://www.hotwatt.com/about-us.html) - [Employment](https://www.hotwatt.com/employment.html) - [Certifications](https://www.hotwatt.com/certifications.html) - [Contact Us](https://www.hotwatt.com/contact-us.html) **Connect with us** Backer Hotwatt 16A Electronics Ave Danvers, Massachusetts 01923-1011 Tel: # (978) 777-0070 Fax: # (978) 774-2409 [Contact Us](https://www.hotwatt.com/contact-us.html) - [Backer North America](http://www.backerna.com/) - [Facebook](https://www.facebook.com/pg/Hotwatt-Inc-536180146445628/posts/) - [LinkedIn](https://www.linkedin.com/company/backer-hotwatt/) [![14001 cert](https://marketing.hotwatt.com/hs-fs/hubfs/raw_assets/public/Hotwatt_October2021/images/ISO%2014001-2015.jpg?width=849&name=ISO%2014001-2015.jpg "14001 cert")](https://marketing.hotwatt.com/hubfs/Hotwatt_October2021/pdf/4603_BackerHotwatt_EMSCertificate_a4_CA_2020.pdf) [![9001 cert](https://marketing.hotwatt.com/hs-fs/hubfs/raw_assets/public/Hotwatt_October2021/images/ISO%209001-2015.jpg?width=849&name=ISO%209001-2015.jpg "9001 cert")](https://marketing.hotwatt.com/hubfs/Hotwatt_October2021/pdf/4602_BackerHotwatt_QMSCertificate_a4_CA_2020.pdf) 2026 Backer Hotwatt. All Rights Reserved. [Site map![xml icon](https://marketing.hotwatt.com/hubfs/raw_assets/public/Hotwatt_October2021/images/xml.png)](https://www.hotwatt.com/download/18.148b3ec816e730f3fb32b8/1575319492787/sitemap12022019.xml) | [Cookies](https://www.hotwatt.com/cookies.html) | [Terms and Conditions![pdf icon](https://marketing.hotwatt.com/hubfs/raw_assets/public/Hotwatt_October2021/images/pdf.png)](https://marketing.hotwatt.com/hubfs/Hotwatt_October2021/pdf/BackerHotwatt_Sales_Ts_Cs.pdf) - - [Products](https://www.hotwatt.com/our-products.html) - - [Learn more](https://www.hotwatt.com/technical-information.html) - - [Connect with us](https://www.hotwatt.com/contact-us2.html) - [Backer North America](http://www.backerna.com/) - [Facebook](https://www.facebook.com/pg/Hotwatt-Inc-536180146445628/posts/) - [LinkedIn](https://www.linkedin.com/company/backer-hotwatt/) [Cookies](https://www.hotwatt.com/cookies.html) 2026 Backer Hotwatt. All Rights Reserved.