Wiring thermostat for 120v heater

The code requires that all ungrounded conductors are disconnected. The double pole thermostat that you have described is for a 220v heater.
2 wire method


It is crucial for your 120v heater, that there is 120v from black to white! Not 220v
L1 and T1 pass through when there is a demand for heat
L2 and T2 pass through when there is a demand for heat

A house wired prior to 2008 would have the white wire , wire-nutted through even if it was 220v heater system; Where a house wired after 2008 the white wire would have landed on the L2 and again on the T2

If the supply voltage is 120v; Then you only need the L1-T1 side of the thermostat and the L2 and T2 wires are not needed

With the current code the 220v system is required to break all of the line wires.
220v systems that used baseboard heaters did not require a neutral wire; Instead the white wire carries 120v to ground and the black wire also carries 120v to ground. Across each other they measure 210-240v
(A 120v heater should not be used in this situation)

L1 being black (powered wire) and L2 being white (powered side)
The black of the (heater wire) T1 and the white of the (heater wire)

This method will work on the 120v heater as well but is not required. On a 120v heater the thermostat only needs L1(black powered wire) and T1 (Black heater wire)

The white wires can be wire-nutted together and stuffed in the back of the box

3 Wire method

If there is a red, black , white, and ground in the box; This would be a three wire system.

The black wire will be 120v to ground, the red will be 120v to ground, and the white will be a return path. From black to red will be 220v

Use the black powered wire as L1 and the black of the heater wire as T1. Tie the white of the powered wire directly to the white of the heater wire,
In this situation the thermostat only separates and connects the power wires together when there is a demand for heat.

Wiring a ceiling fan with optional lights, and seperate switches in two gang box.

1. Mount a two gang device box on the stud, at about 48" above the floor, to the top of the box

2. Secure a ceiling fan rated box to the joist,rafters, or trusses. ( add framing as needed to secure box directly to lumber

3 Pull 14-2 wire from a 15 amp circuit, to the two gang box you have just finished putting on the wall

4. Pull a 14-3 wire from the two gang box to the ceiling fan box you have added

5. Expose all of the inner conductors from a 1/4" of the boxes integeral clamp, to expose six inches of free conductor in each location

6. Strip the ends of all conductors, to expose 1/2" bare copper on all wires

7. At ceiling fan box, attach Black to black, white to white, red to blue, and bare to green

8. At the two gang box you will tie all of the white wires together under one wire nut (tan)

9. You will need to make two six inch pieces of black wire, strip both ends. then tie one end of each piece together with the black wire that comes out of the 14-2 (power in)

10. Tie all of the bare conductors together with two 6" tails (intended to land one on each switch, under the green screw)

11. Land the black wire from the 14-3 ( from ceiling) to a brass screw on one of the switches. Then land one of the powered pig tails on the remaining brass screw of the switch

12. The remaining red wire will land on one of the brass screws, and the remaining black (power pig tail) will land on the last brass screw.

13. install all switches , and the fan on the ceiling

14. Attach the 14-2 intended to power up your project to a powered outlet on a 15 amp circuit, matching colors as well

Breaking a 240 circuit down to 120V

The Red and Blue bars represent the powered bars of a single phase (residential) service panel. A breaker attaching to one phase (or one bar) gets 120V of power. A breaker attaching to both of the red and blue bar will achieve 240V. To break 240 down to 120V you must drop one of the power legs.



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As you can see above the red wires are capped off , both in the panel and at the device location. The Green (ground) and the white (grounded) conductors attach to the ground bar in the panel. (Main panel configuration, Sub panel has different rules)

The Black wire was relocated in the panel to a single breaker, and at the device, attaches to the brass screw.

The White wire at the device attaches to the silver screw, as it is the return path for power from your appliance.

The green wire (or bare) attaches to the Green Screw. This is intended to be the safety ground.

How to install a 220V circuit breaker in a panel ( Do it yourself)

The red and blue bars represent a single phase (residential ) Electrical panel. To wire a 220V circuit, a breaker must attach to both colors(red and blue). Any one color is equal to 120V. A single breaker, or any breaker that connects to one bar is 120V.(110) Peanut breakers allow for 2 circuits to pull off one bar. Where a 2 pole breaker will span both bars, and attach a leg to each bar. The two circuits combined equal 240V(220V). Some appliances that are 220-240, do not require a neutral, and will not have a neutral (White wire). Some electricians use the white for a powered wire when there is no need for a neutral.
(Typically a heat circuit will have a black and white on a breaker)
A Stove on the other hand will use 120V at the clock , so the white will run all the way to the stove, and the wiring in the stove will split the two circuits to meet its needs.


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Dryer outlets 3 prong and 4 prong

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Changing three wire dryer cord to four wire cord.

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I made this drawing using basic paint. The art is crude but the concept is the same.
1.) Turn dryer around and look for access.
2.) Remove any number of 5/16" bolts/ screws that hold the cover in place.
3.) Some dryers require that you bend the plate up to reveal the connection, others simply remove.
4.) There will be a steel strap that connects the neutral(white) wire to the case. Remove this strap.
(They are one in the same back at the panel, before grounds were placed at all box locations; this was how they insured breaker trip when the cabinet became energized)
5.) Place the green wire at the green screw, or where the strap attached to the frame.
6.) Place the white wire on the center lug
7.) The last two wires attach, individually, on the outer lugs.

Wiring a three way switch, explained verbally, and shown with diagram.

Easy way. Simple three way

1. Place the boxes on the wall where you want the switches.
2. Picture them as a straight line and pull 14/3 between them
(note one box has two ends. This will be the four way location)
3. Put power and neutral in one box
(pull a 14/2 from a 15 amp receptacle or breaker. Black will be power, white will be neutral, and bare will be ground)
4. Now go to the last box and pull a 14/2 to the lights.
(this is a switch leg)
5. At the light all will match the fixture colors
6. At the switch leg end tie all of the whites together, and the grounds separately together.
(leave a 6" ground tail to attach to the green screw of your three way switch)
7. Take the black of the switch leg and place it on the black or common screw
8. Take the black and red of the 14/3 and place them individually on a separate silver screw.
(these are called travelers)
9. At the center box (with two 14/3 wires) attach all grounds with a tail to connect to the green screw
10. Tie the two whites together as all they will do is pass a neutral to the light
11. Look at the back of the four way switch ..(.Levi-ton uses the two top screws as inputs and the bottom as the other input, where pass and Seymour uses the left side as one input and the right as the other input) An input is the black and red wire coming out of the same sheath. Make sure that any wire on an individual input comes from the same white casing as the other on the same input)
12. At the power end the whites tie together passing neutral to the light at all times
13. The grounds tie together passing a grounded conductor through each switch to the light at all times (also to the switches green screw)
14. The black of the 14/2 Power wire attaches to the black/common screw
15. The red and remaining black each attach individually to the remaining silver screws

See power goes into the three way switch and follows the connected patch down one of the two travelers at any given time. Any of the switches stir up the pot in a manor to either connect or interrupt the power source headed for the light.

Three way switch powered at light box, with 4 way added.

Three way switch powered at light box

Three way switch when powered at light box