DEVIreg™ Basic programmable floor heating thermostat

What is a programmable floor heating thermostat?

DEVIreg™ Basic is a programmable floor heating thermostat designed for electric underfloor heating systems in residential and commercial buildings. It combines simple temperature control, flexible scheduling, and energy-efficient operation in one solution. With floor sensor control, Bluetooth-assisted setup, and EcoDesign compliance, DEVIreg™ Basic helps maintain comfortable floor temperatures while supporting efficient energy use.

A programmable floor heating thermostat is a device that automatically controls electric underfloor heating according to user-defined schedules and temperature settings. Instead of manually adjusting heating throughout the day, users can create heating programs that match their daily routine.

How it works:

The floor sensor measures floor temperature.
The thermostat compares the measured temperature with the set value.
Heating is activated when additional warmth is needed.
Programmable schedules automatically adjust heating throughout the day.
The optimum start function helps achieve the desired temperature at the programmed time.

Typical applications: electric underfloor heating in residential buildings; apartment renovations; new-build housing projects; hotels and hospitality environments; offices and commercial buildings

Benefits

Programmable floor heating thermostat for electric underfloor heating systems
EcoDesign thermostat compliant with Lot 20 requirements
Compatible with floor temperature sensor control
Two-part construction compatible with standard 55 × 55 mm frame systems
Manual temperature adjustment via rotary dial
Mobile app-guided setup and configuration
Programmable schedules for temperature control
Optimum start function for scheduled heating operation
Designed for fixed installation

Product variants

Choose a product variant to go for product page on Danfoss Store, where you can find more details and documents

Item no	Product name	Type
140F1164	DEVIreg™ Basic Polar White	Ecodesign programmable thermostat with NTC 15 kΩ @ 25°C, 3 m sensor in box

Specification

Nominal voltage	220 - 240 V, 50/60 Hz
Standby power consumption, max	0,2 W
Relay: Resistive load Inductive load	16A / 3680W @ 230V Cos Φ = 0.3 max. 1A
Compatible sensors	NTC 15 kΩ @ 25 °C, 3 m. (default)
Regulation	PWM - Pulse Width Modulation
Frost protection	4 °C - 14 °C (default 5 °C)
Temperature range	5 °C to 35 °C (45 °C with break out) (floor)
Cable specification for connectors terminals	Max: 1 x 4 mm2 or 2 x 2.5 mm2
Ball pressure test	75 °C
Pollution degree	2 (domestic use)
Software class	A
Controller type	1 B
Storage temperature and conditions	-25 °C to 60 °C, 90% RH non-condensing
Operating temperatures and conditions	0 °C to 35 °C, 90% RH non-condensing
IP class	21
Protection class	Class II -
Immunity against voltage surges	Over Voltage Category III
Dimensions (H/W/D):	85 mm x 85 mm x 20-24 mm (in-wall depth: 22mm)
Weight, net	194 g

Warranty scope

Read more about our warranty

Compliance

Standard compliance: Radio Equipment Directive • LVD 60730-1, -2-7 and -2-9 • EMC EN 301 489 -1 and -17 • RF EN 300328

Documents

File	Language	Valid for
Indoor Heating Applications Manual	English	Multiple

File	Language	Valid for
Data sheet	English	Multiple

File	Language	Valid for
DEVI Product Catalog	English	Multiple
DEVI Heating Cables	English	Multiple

File	Language	Valid for
EPD	English	Multiple

FAQs

Feature	Benefit
Floor sensor control	Accurate temperature regulation
Programmable schedules	Improved comfort and efficiency
Bluetooth-assisted setup	Faster installation and commissioning
Optimum start function	Heating ready when needed
EcoDesign compliance	Supports energy-efficient operation

Yes. DEVIreg™ Basic is suitable for both renovation projects and new-build installations. Its compatibility with standard 55 × 55 mm frame systems makes it easy to integrate into many existing electrical installations.
Yes. DEVIreg™ Basic is designed to operate with a floor temperature sensor, which continuously measures floor temperature and helps maintain accurate heating control.
Yes. DEVIreg™ Basic can be used in bathrooms and other indoor areas with electric underfloor heating systems, provided installation complies with local electrical regulations and building requirements.
DEVIreg™ Basic is designed for electric underfloor heating systems, including heating cables and heating mats used in residential and commercial applications.
In many cases, yes. DEVIreg™ Basic can be used as a replacement thermostat for existing electric underfloor heating systems, provided the electrical specifications and sensor compatibility requirements are met.
For safety and compliance, installation should be performed by a qualified electrician according to local electrical codes and manufacturer instructions.
Installation time depends on the project and wiring conditions. For replacement projects, installation is typically faster, while new installations may require additional wiring, testing, and system commissioning.
No. Normal thermostat operation does not require a Wi-Fi connection. The thermostat can be controlled locally, while setup and commissioning are supported through the mobile app.
Yes. DEVIreg™ Basic is suitable for a wide range of applications, including offices, hotels, apartment buildings, retail spaces, and other commercial environments where electric underfloor heating is installed.