Harvia CX30C-U1 control package with a sleek design and digital display for temperature and timer settings
Harvia CX30C-U1 control package with digital display and touch controls for sauna temperature management
Harvia CX30C-U1 control package displayed on a sauna wall for temperature and timer settings
Harvia CX30C-U1 control package for sauna with digital display and buttons for easy temperature control

Harvia CX30C-U1 Control Package for Sauna Accessory

Regular price$1,035.00
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Smart humidity & temperature control for Harvia Virta Combi. The Harvia CX30C-U1 is a purpose-built digital controller for Harvia Virta Combi heaters (heater + steamer) up to 12.7 kW. Independently manage heat and steam while precisely adjusting temperature, humidity, lighting, and fan. Its compact, modern panel installs wall-mounted or flush for a clean, professional look—and delivers reliable, repeatable results in your sauna.

Key Features

  • Heater Capacity: Supports sauna heaters up to 12.7 kW
  • Designed for Virta Combi: Compatible with Harvia’s combined heater + steamer units
  • Dual Function: Independent control of heater and steamer
  • Accurate Monitoring: Includes humidity and temperature sensors
  • Scheduling: On-time and delay-start timer functions
  • Auxiliary Controls: Integrated management of lighting and fan
  • Flexible Installation: Wall-mounted or flush (surface-embedded)
  • Compact Size: 3.4" W × 1" D × 4.4" H

What’s Included

  • Harvia Digital Control Panel
  • Contactor Box
  • Humidity Sensor
  • Power Unit
  • Temperature Sensor
  • Installation & Operation Manual

Warranty Coverage

  • 1-Year Full Warranty
  • 5-Year Service Warranty

Specifications

Brand Harvia
Model CX30C-U1
Application Control for Harvia Virta Combi Series (heater + steamer)
Max Heater Power Up to 12.7 kW
Control Type Digital; independent heater & steamer control
Main Functions Temperature & humidity regulation, timer/delay, lighting, fan
Installation Wall-mounted or surface-embedded (flush)
Panel Dimensions (W × D × H) 3.4" × 1" × 4.4"
Warranty 1-Year Full; 5-Year Service

Installation & Use

  • Follow Harvia’s official installation manual and electrical requirements.
  • All wiring must be completed by a licensed electrician.
  • Install sensors in the recommended locations for accurate humidity and temperature control.

Shipping & Support

  • Shipping: Fast, secure delivery across the continental USA
  • Support: Expert assistance with compatibility and installation guidance
  • Bundles: Ask about special pricing when purchased with Harvia heaters and accessories

Why Buy from MyLuxuryHomeSpa.com?

  • Authorized Harvia dealer with professional expertise
  • Curated selection of premium sauna equipment and controls
  • Secure checkout and outstanding customer service
Pro Tip: Pair the CX30C-U1 with your Harvia Virta Combi heater to fine-tune both steam and heat independently. Bundle the controller and heater together for cost savings and perfectly coordinated performance.

 

Installation and Operation Manual 

Warranty

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FAQs

Shipping & Delivery

Free shipping available on select orders. White-glove delivery and setup can be arranged at an additional cost in most areas. We'll confirm your preferred date after purchase.

Warranty

Full manufacturer warranty, registered at purchase. Need help with a claim? Our U.S. support team handles it directly with the brand.

Returns

New, uninstalled items can be returned within the brand's policy window. We'll help coordinate pickup and any restocking requirements.

Installation & Power

Most saunas/hot tubs require dedicated circuits. We provide spec sheets and can recommend licensed installers in your area.

5.0 5 online reviews
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5.0

5 online ratings
The summary star rating & review is based on aggregated reviews of this product across the web. It cannot be altered by the merchant and can be verified by emailing support@onereview.app.

Harvia CX30C-U1 Control Package for Sauna Accessory Review Summary

5.0

5 online ratings
The summary star rating & review is based on aggregated reviews of this product across the web. It cannot be altered by the merchant and can be verified by emailing support@onereview.app.

What people like

The Harvia Xenio Combi CX30C-U1 is a high-end digital touch control package engineered specifically for single-phase, 240V electric Combi heaters up to 12.7 kwh (such as the Virta Combi series). It features an ultra-slim, modern control interface that allows users to independently manage both the dry heat elements and the built-in steamer unit, offering precise synchronization of temperature and relative humidity (20-95% rH).

Pros

  • Dual Combi Management: Unlike basic thermostats, it provides independent, simultaneous regulation of both the dry heating elements and the steam generator to create a customized microclimate.
  • Comprehensive Environmental Sensing: The package includes dual physical sensors—a dedicated NTC thermistor temperature sensor with a resettable overheat safeguard and a precise relative humidity sensor.
  • Integrated Accessory Relays: Features built-in auxiliary outputs that let you control the sauna cabin's internal lighting and ventilation fans directly from the primary touchscreen panel.
  • Flexible Interface Placement: The sleek digital touchpad is compact and splash-proof, meaning it can be mounted directly inside the sauna room, outside the door, or embedded flush into drywall.

Cons

  • High Electrical Skill Overhead: Wiring the heavy-duty external power contactor box requires running multiple heavy-gauge supply lines, making professional installation by a licensed electrician mandatory.
  • Specific Appliance Matching: It is optimized primarily for Harvia Combi heaters or standard heaters paired with an auxiliary steamer; it represents an unnecessary expense for basic, dry-only electric heaters.
  • Data Cable Routing Constraints: While the system includes a 16 foot data cable, routing the specialized pin connectors through finished tongue-and-groove walls during a retrofit can be technically challenging.
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