New Heating Method

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Neal

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I'm going to make an assumption that CHE's are probably one of the most popular sources for heating our tortoise enclosures. I for one, have never liked them at all for my indoor set-ups. I just couldn't ever get them to work in a way that I felt comfortable with. I've tried to use them every which way I could think of (lowering wattage, changing position, etc...). I would always end up with a really hot spot directly below the CHE, and then spots that would be too cold in the farthest ends of the enclosures. I'm sure there are other things I could try with the CHE's, but I had some extra materials laying around and I wanted to try something else out. I had purchased one of these a long time ago, and never really had any use for it:

Heat-cable-aka-heat-rope.jpg


Petsmart has a 23 foot rope for about $18 with tax. Downside with this heat rope is that you can't place it underneath soil, which is really the only way I could use it in my set ups. I always have a bunch of PVC laying around, so I decided to try and run the heat rope through some PVC which, of course, can be buried under soil. And this is what I came up with:

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The pipes only cover about 3/4 of the containers. Depending on where exactly you want your night time temperatures to be, you can adjust the level of soil until you're at a temperature you like. So the way I have it, the pipes are burried just enough so that my night time temperatures are about 85 in the humid hide, and about high 70's to 82ish in the dirt outside of the hide.

In the picture directly above, you can see the PVC pipes coming out of the black tubs. I have had that set-up for a couple of months now, and so far I think it's the greatest thing. They are on a timer, set to only come on during the night and the 23 foot cable is 50 watts, so I'd like to think I am saving some money by not using a CHE. :) I know there are other methods that may be a little more practical I guess, but like I said, this was all stuff I had pretty much lying around and after a couple of months I am really liking how it is working. Here are the bottom tubs after 4 days of operating.

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The enclosure's still a little crude as far as the humid hides go. We are still warm enough where they are outside all day, so I'm not too worried about it at the moment.

P.S. I should also note that when the PVC is exposed, the outside temperature of the pipe is about 95 degrees. I'm using 1/2 inch sch 40...so there really isn't much risk of overheating a tortoise in my opinion.
 

The Adjustor

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Very cool. Only question is what's the problem with just burying the cable? why won't that work?
 

Neal

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The Adjustor said:
Very cool. Only question is what's the problem with just burying the cable? why won't that work?

Other than the box says not to, I don't really know. The soil would remain somewhat damp, so I would imagine that would create issues.
 

The Adjustor

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Neal said:
Other than the box says not to, I don't really know. The soil would remain somewhat damp, so I would imagine that would create issues.

Ahh... that would make sense I guess. Although the cable looks like it's insulated so it really shouldn't matter. Probably just a legal disclaimer or something. Are there any holes drilled into the PVC for heat to escape or does it do a pretty good job of transfering it as it is?
 

Redstrike

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That's a great idea, wouldn't be an engineer by any chance...?
 

dmmj

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If I remember correctly madkins uses heat ropes you can bury. It sounds like a good idea what temps do you reach through the PVC pipes?
 

coreyc

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dmmj said:
If I remember correctly madkins uses heat ropes you can bury. It sounds like a good idea what temps do you reach through the PVC pipes?

You are correct he uses the ones from big apple herp's they are water proof so can use them inside your enclosure under the substrate:cool:
 

Neal

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Yes there are heat cords that are safe to use in the soil, again there are more practice ideas out there. I think I would still use the pipes though, I would worry that one of my tortoises would dig out the cord and drag it out of place or something. With the pipes, they will be secure and not be able to move.

The Adjustor said:
Are there any holes drilled into the PVC for heat to escape or does it do a pretty good job of transfering it as it is?

No holes drilled, it transfers pretty well. I would worry that moisture would get into the pipes if they were drilled.



dmmj said:
It sounds like a good idea what temps do you reach through the PVC pipes?

85ish in the humid hides, high 70's to low 80's throughout the open areas. These are ground temperatures.
 

Len B

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I would just bury the cable leaving the two ends of the heating cable above ground,Placing something like a rock where the tortoises could get to the hot ends,( there is a 6 1/2 foot cord before it starts getting hot)- but that's just me. The instruction sheet on these cables say. do not put below substrate and do not encapsulate, by putting it in the pvc pipe it is encapsulated.I do like what I read about them and will probably get one and try it. Thanks, Len
 

jackrat

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I use Hydor brand heat rope. It is waterproof. I soak it every day,no problems.
 

Neal

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I am assuming they recommend not to encapsulate it because the heat would get trapped? As it is, the cable is not completely encapsulated. There is an opening on the far left where the heat cord goes into the PVC pipe. As mentioned above the heat transfers pretty well through the pipes, but you bring up a good point. I might consider drilling holes in the pipes that connect the sweater boxes.
 

Len B

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Neal said:
I am assuming they recommend not to encapsulate it because the heat would get trapped? As it is, the cable is not completely encapsulated. There is an opening on the far left where the heat cord goes into the PVC pipe. As mentioned above the heat transfers pretty well through the pipes, but you bring up a good point. I might consider drilling holes in the pipes that connect the sweater boxes.
Being a self regulating cable I don't think you will have a problem with your setup,without any holes, If anything you may have to add a thermostat or rheostat to keep the cable warm.
 

Neal

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Redstrike said:
That's a great idea, wouldn't be an engineer by any chance...?

Definitely not an engineer. I'm not really making any recommendations here, just showing off something I do that works for me. Again, there's probably more practical ways of doing things...maybe I'm just to lazy to figure outwhat they are. :)
 

DolanKoops

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I've got a heat radiator that is fitted to the the top of my viv by far the best heat source you can get!
 
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