OJ Microline UTN4 Radiant Floor Heat Thermostat with Class A GFCI – 120/240V, Dual Sensing, Non-Programmable

Overview

The OJ Microline UTN4 Radiant Floor Heat Thermostat brings simple warmth to your floors. This compact, non-programmable controller is designed for easy plug-and-play installation on under-tile, stone, laminate, carpet, and engineered wood surfaces. Built with a Class A GFCI for safety and cULus listing for USA and Canada, it provides dependable operation for residential spaces while you focus on comfort rather than setup.

Why homeowners choose UTN4

With straightforward operation, you can set a target temperature and enjoy steady heat without ongoing programming. Dual voltage support broadens compatibility to common 120V or 240V circuits, making it adaptable for different project profiles and electrical layouts.

What sets it apart

Key features combine safety, sensing, and versatility:

• Built-in Class A GFCI protects underfloor circuits and reduces trip risk during use.
• Dual sensors offer flexible control: ambient temperature with floor protection, floor temperature with protection, or ambient temperature without protection.
• Load capacity: 1800W at 120V and 3600W at 240V, suitable for typical electric floor heating mats or cables.
• Includes both a floor sensor and an air sensor for balanced warmth as room conditions change.
• Non-programmable design means quick, plug-and-play setup to start heating sooner.

Safety, compatibility, and warranty

Designed for use under tile, carpet, stone, laminate, or engineered wood, the UTN4 is cULus listed for USA and Canada. A 3-year warranty plus USA-based product support provides long-term confidence in performance and service.

In real life

Imagine a chilly morning in a tiled bathroom: you set a comfortable warmth and step onto a nicely heated floor within minutes. In a stone-floored living area, the system maintains even warmth as the air shifts. The UTN4’s durable, simple design minimizes setup time and keeps the focus on everyday comfort.

Technical details at a glance

• Load: 15A-1800W at 120V; 3600W at 240V
• Floor temperature range: +41 to +104°F (+5 to +40°C)
• Ambient temperature range: +32 to +104°F (0 to +40°C)
• Three control modes with dual sensing for versatile installations
• Includes dual relays capability for expanded control options

Warranty and support

Enjoy a generous 3-year limited warranty and access official USA product support for reassurance throughout the product lifecycle.