Thermostat To Shut Off A Light. - Electrical - Contractor Talk

Thermostat To Shut Off A Light.

 
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Old 12-29-2008, 11:39 AM   #1
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Thermostat To Shut Off A Light.


I just built a hot box to keep glues and caulking warm and to charge batteries. I hooked up a 300w light bulb in there but it gets too hot in there now..I want to wire up a thermostat to shut off the light when it gets to 15*C.

I think this would be safer than having a smaller wattage bulb running constantly, and that wouldnt let me control the temperature inside the box when we have wild temperature swings outside

Just wondering what the best way to do this is, Does any one have diagrams of something similar to this? Could you some how use a household thermostat?

Thanks guys
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Old 12-29-2008, 11:47 AM   #2
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Re: Thermostat To Shut Off A Light.


some ideas here http://www.contractortalk.com/f40/wi...ube-van-27421/

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Old 12-29-2008, 12:01 PM   #3
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Re: Thermostat To Shut Off A Light.


Thanks for the link, Dont really want to take anything home at night, I would rather pull up to the job, plug the box in and it stays there locked until the house is built...It is a 4'x2'x2' box and its HEAVY. I need it to have a heat source running all day since all my chargers and batteries will be in there (and my lunch).

All I would like help with is wiring a thermostat to shut off a light. No solar chargers, propane, or any other heat source, just a simple light bulb.

Thanks!
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Old 12-29-2008, 01:40 PM   #4
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Re: Thermostat To Shut Off A Light.


You can just use a single pole line voltage thermostat (used for baseboard heaters) I've also seen one at HD that you just plug and play. Just google line voltage thermostat.
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Old 12-29-2008, 02:20 PM   #5
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Re: Thermostat To Shut Off A Light.


How about this or this or adapting a jamb switch relay with a simple 2 wire thermostat here
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Old 12-29-2008, 02:22 PM   #6
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Re: Thermostat To Shut Off A Light.


I have a solution, go to ither a poltry equipment or pig farm supplier, and purchase a thermostat that will cut on and off at the temp you select, I have one in my pump house


Quote:
Originally Posted by Vrooman View Post
I just built a hot box to keep glues and caulking warm and to charge batteries. I hooked up a 300w light bulb in there but it gets too hot in there now..I want to wire up a thermostat to shut off the light when it gets to 15*C.

I think this would be safer than having a smaller wattage bulb running constantly, and that wouldnt let me control the temperature inside the box when we have wild temperature swings outside

Just wondering what the best way to do this is, Does any one have diagrams of something similar to this? Could you some how use a household thermostat?

Thanks guys
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Old 12-29-2008, 02:39 PM   #7
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Re: Thermostat To Shut Off A Light.


This is what you desire:



http://www.eheat.com/catalog/images/...PSP300_big.jpg




Or..................





This is what I use for a different cause:


http://www.midwesthydroponics.com/pr...scat_30158.jpg




.
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Last edited by MALCO.New.York; 01-02-2009 at 02:24 PM.
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Old 12-29-2008, 06:28 PM   #8
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Re: Thermostat To Shut Off A Light.


The plug in thermostat is perfect..going to check HD for it, thanks
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Old 12-29-2008, 07:05 PM   #9
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Re: Thermostat To Shut Off A Light.


Thermo-cube is the brand I use.
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Old 12-30-2008, 10:20 AM   #10
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Re: Thermostat To Shut Off A Light.


Quote:
Originally Posted by FENCETECHS View Post
I have a solution, go to ither a poltry equipment or pig farm supplier, and purchase a thermostat that will cut on and off at the temp you select, I have one in my pump house
I thought the same thing. Can be placed inside the container and activate when temp set is reached inside the container.
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Old 12-30-2008, 12:14 PM   #11
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Re: Thermostat To Shut Off A Light.


I use Thermo-Cube. They are available in several on-off ranges. They seem to work well and I havent had any failures yet.
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Old 12-30-2008, 06:31 PM   #12
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Re: Thermostat To Shut Off A Light.


I was killing time in HD today and saw a thermostat to control attic power vents, $24 Adjustable temp knob.
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Old 12-30-2008, 07:22 PM   #13
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Re: Thermostat To Shut Off A Light.


Quote:
Originally Posted by BACKWOODS View Post
I was killing time in HD today and saw a thermostat to control attic power vents, $24 Adjustable temp knob.
That's a cooling stat. Not a heating stat. That one makes on temperature rise. You need one that makes on temperature fall. The cord stats pictured above that they sell for the torpedo heaters work great for most any application.
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Old 12-30-2008, 08:23 PM   #14
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Re: Thermostat To Shut Off A Light.


Quote:
Originally Posted by mdshunk View Post
That's a cooling stat. Not a heating stat. That one makes on temperature rise. You need one that makes on temperature fall. The cord stats pictured above that they sell for the torpedo heaters work great for most any application.
Thanks for setting me straight, I got close to being error free in 2008 and screwed it up in the last few hours! I will try harder next year
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Old 12-31-2008, 05:44 PM   #15
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Re: Thermostat To Shut Off A Light.


I bought a plug in thermostat at Canadian Tire today for $30. Does heating or cooling.

Hooked it up and works great, the box is outside ride now, -25*C out there, inside the box its a toasty +20. and the light seems to only run approx 50% of the time with a 300w bulb.
I also put a power bar in there for all the chargers.

Thanks for the help!
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Old 01-01-2009, 03:25 AM   #16
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Re: Thermostat To Shut Off A Light.


Quote:
Originally Posted by Vrooman View Post
I bought a plug in thermostat at Canadian Tire today for $30. Does heating or cooling.

Hooked it up and works great, the box is outside ride now, -25*C out there, inside the box its a toasty +20. and the light seems to only run approx 50% of the time with a 300w bulb.
I also put a power bar in there for all the chargers.

Thanks for the help!
now you just need to insulate the box for heat loss. Maybe you need an old fridge not a job box, just leave the appliance bulb in it on all the time.
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Old 01-02-2009, 08:41 AM   #17
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Re: Thermostat To Shut Off A Light.


Quote:
Originally Posted by acrwc10 View Post
now you just need to insulate the box for heat loss. Maybe you need an old fridge not a job box, just leave the appliance bulb in it on all the time.
Disconnect the door switch that controls the light, or you will be defeating the purpose. Aren't those bulbs like only 15 watts? How much heat can that give off?
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Old 01-02-2009, 04:17 PM   #18
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Re: Thermostat To Shut Off A Light.


use an electric heat t stat as the switch it will work as a switch and your t stat
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Old 01-02-2009, 07:44 PM   #19
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Re: Thermostat To Shut Off A Light.


Quote:
Originally Posted by acrwc10 View Post
now you just need to insulate the box for heat loss. Maybe you need an old fridge not a job box, just leave the appliance bulb in it on all the time.
The box is 3/4 spruce plywood with 2" of extruded PS inside and on the lid, and protecting the foam is cheap paneling.

The 300w bulb heats the 16 cu ft quite easily
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Old 01-02-2009, 10:35 PM   #20
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Re: Thermostat To Shut Off A Light.


Quote:
Originally Posted by Vrooman View Post
The box is 3/4 spruce plywood with 2" of extruded PS inside and on the lid, and protecting the foam is cheap paneling.

The 300w bulb heats the 16 cu ft quite easily
Sounds like you could cook in it, if the T-stat is set high enough.

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