Planned Power/Heat Outage: How I'm Preparing to Keep my Tarantulas Warm

Gevo

Arachnosquire
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This is a discussion post, not a question post: I've got a planned power/heat outage happening tomorrow for some major utility work happening in my area, so I thought I'd share what I'm doing to help keep my tarantulas safe. I'm in Canada, and it's winter!

A few things about my context:
- The outage will be up to 7 hours long. This is a planned outage, and it's relatively minor, not an emergency situation where my community would be kicking up gas-powered generators and all that.
- My collection is very small. I have only two tarantulas, but this would be scalable for some folks with small collections.
- We're not in the middle of a deep freeze, so that also changes things a lot. I don't expect the indoor temperatures to drop to freezing, but I do expect to see things go into the 10-15C (50-60F) range, and I just want to have a few contingencies in place in case the heat loss is higher than anticipated or the outage extends for longer than planned.
- This outage is happening in stages in my community, and I have neighbours who aren't impacted on the same day who have already said that they will keep my tarantulas in their houses in a safe spot if we need to go that route.
- Space heaters, heat mats, etc. are of no use to me because this is a power and heating outage.

So, in other words, this isn't for natural disaster contingency planning or for managing outages in extreme temps, but maybe someone scanning the threads for how to keep tarantulas warm under similar circumstances will benefit.

  1. I'll be raising my indoor temperature overnight tonight, so we'll be starting the day warmer than usual.
  2. I'll be moving my tarantulas to the warmest room in the house, which is an interior basement bathroom with no windows or external walls, and I'll be closing the door. This is where we'll see the least heat loss in the house.
  3. I'll be placing the enclosures in insulated bags to help keep the temperatures inside stable. I don't think airflow will be an issue for the few hours they're in there because tarantulas survive being packed, boxed, and shipped in containers with minimal airflow, but nonetheless, I'll keep the bags cracked a bit on the side so there's a bit of airflow.
  4. I have battery-powered thermometers I can use to monitor the ambient temperatures in the bags.
  5. I have some air-activated toe warmer and hand warmer packs that I can tape to the sides of the enclosures if I need to, though I don't expect I will. Some thoughts I'm having about those are that the packs reach about 50C at max temperature, which is comfortable to the touch for a body with a circulatory system that moves heat around the body and away from the source or in a more open environment where the heat dissipates into the air but could raise temperatures too high if they're working in an insulated environment, and also that they work by oxidizing the iron shavings inside them and letting off heat through that chemical process (they rust, basically!), and I don't want them using up the oxygen in an insulated bag. So, if I use them at all, it will be with the bags opened up to allow for more airflow, and it'll be closely monitored.
I'll let you know how it goes!
 

A guy

Arachnobaron
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Since you only have two, a cooler with those hand warmers inside would be the easiest.

I have a hundred something and had to endure more than a week of no heating due to electrical problems in the house I'm currently living in and this was in the middle of Canadian winter. I bundled all of the enclosures together, scattered some hand warmers and covered everything with comforters. No losses and no problems whatsoever. Some even molted during it.
 

NMTs

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If you had more time to plan I would suggest getting some purpose-made heat packs (ones that are designed to heat shipping cartons with reptiles/fish/inverts in them) and use those instead of the hand warmers. The hand/toe warmers will work in a pinch, but you're right that they get too hot to be a good option - they will get really hot for a short amount of time, compared to the shipping heat packs that are formulated to release a relatively even amount of heat over a longer period of time. Most will increase ambient temps by about 10 degrees F, and you can get them in 20, 30, 40, 60, 72, 96, and 120 hour increments, depending on how long you need them to work. No matter which type you use, they should not be applied directly to the enclosure if it can be avoided, but rather put them in a larger container and let them warm the air inside as has been mentioned already. I would suggest that anyone who keeps pets like inverts or reptiles should have a few of these heat packs on hand, even if they never plan to ship any of their animals. You never know when something like this might come up, so best to be prepared.

Altogether, it sounds like a good plan. Hope you put as much thought into how you're going to keep yourself warm during this outage, LOL!
 

Gevo

Arachnosquire
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Since you only have two, a cooler with those hand warmers inside would be the easiest.
That's pretty much the plan. The insulated bags I'm talking about are cooler bags. I don't think I'll need the hand warmers but have them just in case.
 

Gevo

Arachnosquire
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If you had more time to plan I would suggest getting some purpose-made heat packs (ones that are designed to heat shipping cartons with reptiles/fish/inverts in them) and use those instead of the hand warmers.

[...]

Altogether, it sounds like a good plan. Hope you put as much thought into how you're going to keep yourself warm during this outage, LOL!
Yeah, I was thinking about that and am going to get some of those packs for the future. I use the hand and foot warmers for winter cycling when it's below about -15C, and they can get quite warm for periods of time, and while they work great for hands and feet, they're a poorly controlled heating system.

And thanks! I'll be fine with some extra sweaters and socks, I'm sure. The outage is for up to 7 hours, but they usually try to limit it because they don't want to have to reimburse people for lost frozen food or burst pipes or anything, but one of my neighbours said their outage was for 6 hours.
 

Atabby

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If you had more time to plan I would suggest getting some purpose-made heat packs (ones that are designed to heat shipping cartons with reptiles/fish/inverts in them) and use those instead of the hand warmers. The hand/toe warmers will work in a pinch, but you're right that they get too hot to be a good option - they will get really hot for a short amount of time, compared to the shipping heat packs that are formulated to release a relatively even amount of heat over a longer period of time. Most will increase ambient temps by about 10 degrees F, and you can get them in 20, 30, 40, 60, 72, 96, and 120 hour increments, depending on how long you need them to work. No matter which type you use, they should not be applied directly to the enclosure if it can be avoided, but rather put them in a larger container and let them warm the air inside as has been mentioned already. I would suggest that anyone who keeps pets like inverts or reptiles should have a few of these heat packs on hand, even if they never plan to ship any of their animals. You never know when something like this might come up, so best to be prepared.

Altogether, it sounds like a good plan. Hope you put as much thought into how you're going to keep yourself warm during this outage, LOL!
Who carries the shipping warmers?
I'm in Oregon and we usually have mild winters, but can get some very low dips, the last power outage of any significance was before we had the tarantulas.
I would like to be prepared in the event of something.
 

NMTs

Theraphosidae Rancher
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Who carries the shipping warmers?
I'm in Oregon and we usually have mild winters, but can get some very low dips, the last power outage of any significance was before we had the tarantulas.
I would like to be prepared in the event of something.
The manufacturer of the ones I use is Uniheat, so if you search for "uniheat heat packs" you'll find lots of places that sell them - reptile & aquarium supply stores, animal shipping companies, even the jungle conglomerate sells them.
 

Gevo

Arachnosquire
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The manufacturer of the ones I use is Uniheat, so if you search for "uniheat heat packs" you'll find lots of places that sell them - reptile & aquarium supply stores, animal shipping companies, even the jungle conglomerate sells them.
I checked, and my local reptile shop sells those, so I’ll grab a few next time I’m there. Thanks for the tip!
 

Brewser

RebAraneae
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Semper Paratus
Always Ready
Be prepared for any eventuality,
easier said than done.
Best Regards,
 

Charliemum

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It won't help you much this time but you could always invest in a camping battery and then you could run a little space heater in a room for the spoods and you keep everyone warm.
I want to say I don't own one myself but saw one when I was watching desert drifter the other day n thought it would be a great idea for emergency spood warmth, so thought I would pass the idea on. I haven't looked into them but it wouldn't take much to Google it for any interested 🤷🏻‍♀️.

Gl to you n your spoods n can I just say great neighbours 😊.
 
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