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OJ Microline® UWG4

OJ Microline® UWG4

by OJ ELECTRONICS AS

33 ratings
26 reviews
🔧 Utilities
🌟 Lifestyle
Free

Details

Released
October 15, 2015
Updated
September 15, 2025

Developer

OJ ELECTRONICS AS
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About

Remotely control your home heating system from any location. View and set temperatures, adjust heating schedules, activate vacation mode, and monitor energy consumption. Ensure comfort and maximize savings with intuitive thermostat management.

✓Remote temperature control
✓Heating schedule management
✓Vacation mode activation
✓Energy consumption monitoring
✓Access multiple thermostats
✓Set US or Metric units
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What's New in OJ Microline® UWG4

1.8.0

September 15, 2025

Performance and Security Update

User reviews

Most RecentHighest RatedLowest Rated

UWG4 Support Terminated

Super annoying I spent close to $500 on two thermostats and they were effectively bricked to manual thermostats. Spoke to a VP in the US whom I accessed on LinkedIn who attempted to get me help, but was completely ignored. If you have a UWG and you want remote access, you have to buy something else, the UWG4 is dead!
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BbbyjesusYUL

Worthless App

Very user unfriendly. Does not stay on schedule.
JMJason H Montgomery

No landscape mode

App will not rotate to landscape mode
DDenAm1234

Incredibly disappointing

I spent a lot of money on this WiFi thermostat because I wanted to be able to control my thermostat remotely. The interface is primitive and buggy. I try to enter certain times for the heating schedule and the app overrides my choices. There’s supposed to be a way to connect the thermostat with Alexa via the app, but that is not possible. There should be a way to turn off the floor heater when you’re away, but there’s not.
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LPLen is procrastinating

App is Horrible

Was Logged Out and there isn’t a way to retrieve or reset my password.
JJS648
See 21 more reviews

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FAQ

What does the OJ Microline UWG4 app do?

The app allows you to remotely control your OJ Microline® UWG4 Touch thermostats. You can view and set temperatures, modify your heating schedule, activate vacation mode, and monitor your energy consumption from any location.

What are the key features of this app?

Key features include the ability to view and set current indoor temperatures, adjust your heating schedule on the fly, set your system to vacation mode to save energy, and view your heating system's energy log. It also supports access to multiple thermostats and locations.

Is this app free to use?

Based on the provided information, the app is available for free. There are no mentions of subscription fees, in-app purchases, or advertisements.

What thermostats are compatible with this app?

This app is designed to work with the WLAN version of OJ Microline® Touch thermostats, specifically the UWG4 model. Ensure you have a compatible thermostat to utilize the app's features.

How can this app help me save money on heating?

The app helps you save money by allowing precise control over your heating. You can easily set your system to vacation mode when you're away, adjust schedules to avoid heating an empty house, and monitor energy consumption to identify potential savings.