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We'd love the opportunity to answer your questions, learn about your sauna preferences, and make sure everything is considered for a flawless delivery. Book a planning session now.

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'Black Friday Today' Guarantee
At Sauna Marketplace, we always offer the best service, support, and expertise. But that doesn't mean you should pay more! Place your order knowing that if you find a better deal published from another authorized dealer, we'll refund the difference. This fall, we are extending this through Black Friday. Buy any sauna, heater, or accessory in October or November and rest assured that if an authorized dealer has a better price publicly posted on their website for the same product, we'll refund the difference! That means you can actually get the sauna and start enjoying it while it's in stock. *Must enter 'Black Friday Guarantee' in checkout notes*

Harvia Xenio & Fenix Data-Cable Extension – 65 ft (20 m) WX319

Relocate your Harvia Xenio or Fenix control panel up to 65 ft (20 m) with this plug‑and‑play RJ‑10 extension cable. Genuine Harvia quality ensures reliable connections and supports a maximum total cable length of 80 ft (25 m).

Build Your Quote:

$130.00

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We partner with distributors and manufacturers who guarantee the lowest prices, fastest delivery, and additional 'whatever-it-takes' support. 

Bathing Distribution Center - Chicago
Zero Interest Payments:

Buy Now, Pay Later with premium financing packages only available on Sauna Marketplace.

Pay with HSA/FSA:

We teamed up with FLEX to make HSA/FSA payments easier than ever.

Extend Your Control Panel, Expand Your Sauna Experience

The Harvia Xenio & Fenix Data‑Cable Extension lets you relocate your digital control panel up to 65 ft (20 m) from the sauna power unit. This is perfect when you’d rather adjust sauna settings from a comfortable dry space like a changing room or living area instead of inside the hot sauna.

Why extend your cable?

– Safer and more convenient: keep the control panel cool and dry and avoid bending over or reaching awkwardly to adjust the temperature.
– Custom installation: ideal for larger rooms or when the power unit sits behind a wall or in a mechanical closet.
– Plug-and-play reliability: genuine Harvia RJ 10 connectors on both ends mean no cutting or crimping and ensure a secure signal.

Key features

– Factory made 65 ft (20 m) data-cable extension.
– Compatible with both Harvia Xenio and Fenix control units.
– Durable shielded cable with RJ 10 connectors on both ends.
– Maximum total cable length (including original cable) is 80 ft (25 m), as recommended in Harvia manuals.
– Flexible and durable cable jacket; manufactured by Harvia in Finland.

Specifications

Length: 65 ft (20 m)
Connectors: RJ 10 male to male (4P4C)
Compatibility: Harvia Xenio & Fenix control units
SKU: WX319 65FT

<nstallation

1. Turn off power to your sauna.
2. Remove the existing data cable from your control panel and power unit.
3. Connect one end of the extension cable to the control panel and the other end to the existing cable at the power unit.
4. Route the cable along walls or through conduit as needed. Avoid running near high voltage wires to reduce interference.
5. Restore power and verify that the control panel communicates with the sauna heater.

This cable is a safety component and cannot be returned once installed. Do not exceed the total control cable length specified above.

Attachments

Video Attachments

Planning Session

We'd love the opportunity to answer your questions, learn about your sauna preferences, and make sure everything is considered for a flawless delivery. Book a planning session now.

Gallery
'Black Friday Today' Guarantee
At Sauna Marketplace, we always offer the best service, support, and expertise. But that doesn't mean you should pay more! Place your order knowing that if you find a better deal published from another authorized dealer, we'll refund the difference. This fall, we are extending this through Black Friday. Buy any sauna, heater, or accessory in October or November and rest assured that if an authorized dealer has a better price publicly posted on their website for the same product, we'll refund the difference! That means you can actually get the sauna and start enjoying it while it's in stock. *Must enter 'Black Friday Guarantee' in checkout notes*