Converting a Heater Thermostat to Digital

Home Improvement

Thermostats are a common household item, but have you ever wondered how they actually function? A mechanical thermostat tends to consume more electricity than a digital one as it is intrinsically less accurate. It maintains a higher temperature than its setting and allows the temperature to fall below its setting before re-energizing the heater, which uses up more power. Conversely, a digital thermostat provides more precision and control, resulting in a reduction in electricity consumption [source: DIY Doctor]. If you want to replace a wall-mounted thermostat with a programmable digital one, you will need: a programmable digital thermostat, a screwdriver, a pencil or dowel, and a cordless drill (optional) [source: Donovan]. Here’s how you can replace that thermostat:

1. Ensure that the thermostat’s circuit breaker is turned off.
2. Remove the thermostat cover, either by pulling it off or removing the screws, depending on the model.
3. Remove the mounting screws and gently pull the thermostat away from the mounting plate.
4. Label each wire with the symbol or letter of its thermostat terminal.
5. Disconnect the wires from the thermostat and wrap them around the pencil or dowel so they don’t slip back into the wall. It’s important to note that if the thermostat contains a mercury tube, you should not throw it in the trash. Ask your local waste management authority how to dispose of it safely.
6. Remove the mounting plate from the wall.
7. Align the new mounting plate over the hole. If the screw holes don’t match up with the existing anchors, hold the plate level and mark new holes with the pencil. Drill the holes and insert new anchors.
8. Pull the wires through the mounting plate and then screw the plate firmly to the wall.
9. Check the thermostat’s terminals for symbols or letters. If the markings match the wire labels, connect the wires to the corresponding terminals. If the terminal markings are different, check the installation or user’s guide for wiring instructions.
10. Snap the thermostat onto the mounting plate, and then insert the batteries. Note: Some models require you to reverse this procedure.
11. Switch the circuit breaker back on.
12. Switch the thermostat to Auto and set the thermostat higher than the temperature reading. The heater should switch on within a few seconds.
13. Program the thermostat according to the user’s manual [source: Donovan].

This article was originally published on Jun 30, 2011.

Frequently Asked Questions about Converting Thermostats

Is it possible for me to replace my thermostat myself?

Replacing your old thermostat is possible, but it requires basic electrical knowledge and careful adherence to the instructions to ensure proper and safe installation.

Are digital thermostats superior to analog ones?

Digital thermostats are much more efficient than analog or mechanical thermostats. Analog thermostats consume more energy and maintain a higher temperature than the desired setting. On the other hand, digital thermostats are more precise and offer greater control, leading to energy savings.

How can I identify thermostat wires?

After removing the thermostat from the mounting plate, the best way to identify the thermostat wires is to examine the terminal on which each wire is connected.

What is a smart thermostat?

A smart thermostat is a type of thermostat that can be used with home automation devices, allowing it to be controlled using a phone or tablet app or smart speaker from anywhere and at any time.

How can I remove the cover from a thermostat?

To remove the cover from a thermostat, gently pry it off or remove the screws, depending on the model.

FAQ

1. What is a heater thermostat?

A heater thermostat is a device that controls the temperature of a heating system. It turns the system on and off to maintain a desired temperature.

2. Why would I want to convert my heater thermostat to digital?

Digital thermostats offer more precise temperature control, easier programming, and can save energy and money on heating bills.

3. What materials do I need to convert my heater thermostat to digital?

You will need a digital thermostat, wire strippers, pliers, a screwdriver, and possibly a voltage tester.

4. How do I choose the right digital thermostat?

Choose a thermostat that is compatible with your heating system, has the features you want, and fits in the space where your old thermostat was.

5. How do I remove my old thermostat?

Turn off power to the heating system, remove the cover from the old thermostat, unscrew it from the wall, and disconnect the wires.

6. How do I install the new digital thermostat?

Follow the manufacturer’s instructions for wiring and mounting the thermostat, making sure to connect the wires to the correct terminals.

7. Do I need to calibrate the new thermostat?

Most digital thermostats will automatically calibrate themselves, but some may require manual calibration. Follow the manufacturer’s instructions.

8. How do I program the new thermostat?

Program the thermostat according to your schedule and preferences using the manufacturer’s instructions. Most digital thermostats have easy-to-use programming features.

9. What if I encounter problems during the installation process?

If you encounter problems during installation, consult the manufacturer’s instructions or seek professional help. Do not attempt to force or modify the thermostat.

10. What are some additional benefits of digital thermostats?

Digital thermostats can offer features such as remote control, wifi connectivity, and smartphone apps for even more convenient temperature control.

11. How can I ensure my digital thermostat is working properly?

Check that the temperature readings are accurate, the heating system is turning on and off as expected, and the programming is working correctly. If you notice any issues, consult the manufacturer’s instructions or seek professional help.