Can baseboard heaters be controlled by the 4iE?

This page explains how to wire and program the 4iE thermostat to work with baseboard applications.

How do I reset/power cycle my 4iE?

First, loosen the screws at the bottom of your unit at shown in the video clip below. Then remove the face of your thermostat by lifting up and off. On the back of the face is a small reset button. Using a small screw driver or writing utensil, press and hold the reset button for 15 seconds. Then place the face of the unit back on making sure the 8 gold pins line up correctly with their counterparts.


The 4iE® Smart WiFi thermostat, and non-WiFi version, learn the heat-up and cool down rates of your home to automatically set the most efficient temperatures when you’re away, reducing usage by up to 25%.

What type of WiFi does the 4iE use?

Click “Read More” for details.

How many floor heating systems can be connected to one TH115 Floor Heating Thermostat?

When multiple floor heating systems need to be controlled by one thermostat there are guidelines to follow.  Click “Read More” for details.

Can I use the TH115 Floor Heating Thermostat with other floor heating systems?

While this might be an option, caution should be exercised.  Click “Read More” for an explanation.

TH115 Floor Heating Thermostat Error Message: ER

What do you do when this message appears?  Click “Read More” for details.

What are the three setting dials around the large timer on the WSM-63?

The three dials around the large timer dial on the WSM-63 allow you to change the settings of the controller. A Yellow LED: power ON (U) B Red LED: timing in progress (C) C Unit of time selected D Time scale selector E Function selected F Function selector: AI, DI, GI, SW, BE, CEa, DE […]

How-to: Programming Your Tempo Thermostat

Programming your Warmup Tempo thermostat.

What is System Power on my 4iE?

System Power is requested during the initial setup of your device. System power is simply the wattage of the heating system that you connect to your thermostat. To set your systems power select the following: menu > energy monitor > power settings > select the wattage using the up and down arrows > accept.