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Best Foot Warmers

last updated Feb 25, 2019

Pop quiz; how many of you that are currently reading this guide has experienced cold feet? Not the actual expression that references you having serious doubts but in regard to the literal meaning of cold feet? Chances are, every last one of you have experienced this and while we are not about to dive into the reasoning behind it happening, we have a solution. Well, technically, “we” do not have the solution but rather this guide offers you with a solution. This “solution” is a foot warmer. Now, foot warmers come in many different styles and choosing the right one will come down to your needs and preferences. But, along the way, you will find that there are several factors that can make or break specific models. So, with so much to discuss, let’s get started.

In a Hurry? The test winner after 3 hrs of research

icon
Proaller Heating Pad
90.6/100 our score
Effectiveness
90
Comfort
93
Features
91
Style
91
Advanced Features
88
Proaller Heating Pad
Why is it better?

Also ideal for treating sore muscles

It is ETL certified

Both sides are made of microplush fibers

In a Hurry? Editors choice:
Proaller Heating Pad
Test Winner: Proaller Heating Pad
Researched Sources
5
Researched Sources
Reviews Considered
19
Reviews Considered
Hours Researching
3
Hours Researching
Products Evaluated
16
Products Evaluated
Last Updated:
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By Sami Kritz:

These top-rated foot warmers are great for frigid winter months, drying out wet shoes, and even for soothing arthritis pain. We have updated this buying guide with a new format and also added in an "Other Factors to Consider" section. Read through the FAQ to learn more and don't forget to vote and tell us which criterion is most important to you!

Sorting Options
Effectiveness Comfort Features Style Advanced Features By Default
Rank
PictureProduct
Name
Rating
Shops
#1
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
90.6
Effectiveness
90%
Comfort
93%
Features
91%
Style
91%
Advanced Features
88%
Price Comparison Last Updated (19.03.19)
$24.99
#2
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.2
Effectiveness
84%
Comfort
92%
Features
93%
Style
90%
Advanced Features
87%
Price Comparison Last Updated (19.03.19)
$54.95
#3
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
87.2
Effectiveness
82%
Comfort
85%
Features
87%
Style
89%
Advanced Features
93%
Price Comparison Last Updated (19.03.19)
#4
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
86
Effectiveness
87%
Comfort
90%
Features
90%
Style
87%
Advanced Features
76%
Price Comparison Last Updated (19.03.19)
$349.95
#5
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
85.6
Effectiveness
92%
Comfort
86%
Features
88%
Style
84%
Advanced Features
78%
Price Comparison Last Updated (19.03.19)
$29.95
#6
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
85
Effectiveness
89%
Comfort
88%
Features
78%
Style
92%
Advanced Features
78%
Price Comparison Last Updated (19.03.19)
$62.63
#7
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
84.6
Effectiveness
86%
Comfort
83%
Features
84%
Style
87%
Advanced Features
83%
Price Comparison Last Updated (19.03.19)
$69.98
#8
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
84.2
Effectiveness
90%
Comfort
92%
Features
77%
Style
84%
Advanced Features
78%
Price Comparison Last Updated (19.03.19)
$15.77
#9
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
83.6
Effectiveness
86%
Comfort
84%
Features
88%
Style
81%
Advanced Features
79%
Price Comparison Last Updated (19.03.19)
$36.99
#10
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
82.6
Effectiveness
85%
Comfort
81%
Features
78%
Style
91%
Advanced Features
78%
Price Comparison Last Updated (19.03.19)
$14.44
In Depth Review Top 10
  • Proaller Heating Pad
  • Gideon Quilted
  • Sunbeam Comfy
  • Lenz Set Lithium RCB
  • Roscos Comforts
  • Grabber Insole
  • ObboMed Warming
  • Heat Holders Thermal
  • Cozy Products TT
  • HotHands Insole
Table of contents
  • Criteria Used for Evaluation
  • Other Factors to Consider
  • Frequently Asked Questions
  • Sources

OUR TOP PICKS FOR THE BEST FOOT WARMERS

1. Proaller Heating Pad

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
90.6
Proaller Heating Pad
Effectiveness
90
Comfort
93
Features
91
Style
91
Advanced Features
88
best offer for today
$24.99
Pros:

Also ideal for treating sore muscles

It is ETL certified

Both sides are made of microplush fibers

Cons:

The heat only comes from the bottom and not the top

Technology is of the essence with this design and when you need to warm your feet when kicking back and relaxing, there probably is not a better option out there than this.

Read more

Effectiveness
Outside of its heating efficiency, this pad is also ideal for treating sore muscles. Do note, though, that this only heats from the bottom and not the top (so you may need to flip it if the top of your feet get cold).

Comfort
Thanks to the luxurious ultra-plush flannel construction (which is present on both sides), you can rest assured that this will deliver a superb amount of comfort to your skin.

Design Features
In addition to the three different heat settings, this also comes equipped with a two-hour automatic shut-off feature. Oh yeah, and it is powered via its 10-foot cord.

Style
This is made for sitting or lying as it is 22 inches wide by 21 inches deep. In fact, it can even accommodate two pairs of feet if someone else wanted in on the action.

Advanced Features
Now, this does come with a controller but the issue is there is no way to bypass the automatic shut-off feature.

Overall
This right here is beyond impressive. With that said, it is not a flawless design but it is not hyperbolic to claim that this is the best foot warmer on the market.

2. Gideon Quilted

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.2
Gideon Quilted
Effectiveness
84
Comfort
92
Features
93
Style
90
Advanced Features
87
best offer for today
$54.95
Pros:

Made with fleece fabric for comfort

The top portion can be removed and machine washed

Designed with eight total massaging nodes

Cons:

A common complaint is that this does not heat extremely well

What is interesting to note about this next model is that it is also a foot massager. So, you receive the ideal combination of heat and relaxation in one convenient package.

Read more

Effectiveness
While the combination of heating and massaging is tremendous, a common complaint about this model is that it does not heat very well. Go in expecting warmth and not heat as you would receive from a heating pad.

Comfort
Gideon ensured that comfort would not be an issue here as their foot massager is complete with luxurious ultra-plush fleece fabric.

Design Features
With eight different levels of deep penetrating massaging nodes available, you can really maximize your experience. In addition, there is an automatic shut-off feature that can be set for 15 minutes.

Style
Almost think of this as a giant slipper. When you want your feet warm, you merely slide them inside the base and let the technology do its magic.

Advanced Features
Probably the most advanced aspect of this design is that it can act as a massager. What is interesting to note, though, is that the massage balls can’t individually rotate different ways.

Overall
As a heater, this is solid. As a massager, this is masterful. Combine them both together and you have a great product that pretty much everyone will adore.

3. Sunbeam Comfy

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
87.2
Sunbeam Comfy
Effectiveness
82
Comfort
85
Features
87
Style
89
Advanced Features
93
best offer for today
Pros:

Features a three-hour automatic shut-off feature

Backed by a three-year limited warranty

Comes with a PrimeStyle controller

Cons:

A few buyers claim that the automatic shut-off feature does not work

Overall, it can feel really bulky on your bed

We go from one unique design to another. This one from Sunbeam is essentially a heating pad that is designed to rest at the foot of your bed and can warm your feet throughout the night.

Read more

Effectiveness
In regard to the performance, some users have commented that this pad is not the best at evenly distributing the heat.

Comfort
Now, the actual fabric makeup of this model is ideal as it is 100 polyester and fairly soft. But, the potential issue is the bulkiness as this is just that, bulky.

Design Features
Interestingly enough, it is clearly claimed that this comes with a three-hour automatic shut-off feature (and three heat settings). But, some users have reported that their shut-off function did not work.

Style
This right here is designed to fit right under your sheets on the end of your bed. With it there, you can rest your feet on top for optimal heat.

Advanced Features
To avoid the annoyance of getting up to control this pad, it comes with a PrimeStyle controller that sports ThermoFine technology.

Overall
What is nice about this option is that it can rest right on your bed and (for those who do not like sleeping with slippers or shoes) you do not have to “wear” it.

4. Lenz Set Lithium RCB

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
86
Lenz Set Lithium RCB
Effectiveness
87
Comfort
90
Features
90
Style
87
Advanced Features
76
best offer for today
$349.95
Pros:

It is easy to attach the lithium packs

Features ergonomically knitted padding

The battery will last upward of five to six hours on low

Cons:

The price is utterly ridiculous

If you can ignore the ludicrous price tag of this design, which is not easy to do, you can get one of the best overall designs on this list. Though, the price is warranted somewhat by the functionality.

Read more

Effectiveness
Based on the limited feedback, it seems that the RCB 1200 is ideal at warming your feet but does not really provide immense heat. On colder days, it should do just fine, though.

Comfort
This is mainly comprised of polyester and nylon but also has shades of merino wool. And, it is designed with ergonomically knitted padding for enhanced comfort.

Design Features
Though this is a sock, it does come with lithium packs. With these, you can choose your level of heat and the batteries should last around five to six hours (at the lowest level).

Style
The included lithium pack can be attached by folding over the top of the sock and you really do not notice it being there. Overall, this only heats the balls of your feet and the toe regions.

Advanced Features
Outside of the lithium packs, there are really not too many advanced features to speak of. For the price, it is not absurd to expect some form of additional functionality.

Overall
Look, typically, it is not fair to judge the quality of a product on its price. And, while that is not necessarily happening here, this does seem overpriced (although it is still a top-notch design).

5. Roscos Comforts

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
85.6
Roscos Comforts
Effectiveness
92
Comfort
86
Features
88
Style
84
Advanced Features
78
best offer for today
$29.95
Pros:

One size is designed to fit all

Combines optimal warmth with exceptional comfort

No batteries or electricity are required

Cons:

Breathability can be an issue

Due to the lack of a sole, they can wear quickly

If there was one integration that would have made this even better it would have been an outsole. As it remains, however, these slippers are great at delivering warmth but they will not replicate actual shoes.

Read more

Effectiveness
As mentioned, 180 grams of duck down are utilized here and this provides all the warmth your feet will need. Duck down is an excellent material used for insulation purposes.

Comfort
In addition to the duck down, this is made of soft fabric that adds comfortability. But, despite being made of breathable nylon, some users claim breathability can be an issue.

Design Features
Though no technology features are built into this design, these bed slippers are equipped with two Velcro straps that allow you to tailor them to your needs.

Style
As these are slippers that utilize the natural insulation properties of duck down, they can be worn freely. But, due to the lack of a sole, be careful not to wear them around the house too much as they will wear quickly.

Advanced Features
No power is needed and at its core, this design is very simple and lacks any advanced features of any kind.

6. Grabber Insole

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
85
Grabber Insole
Effectiveness
89
Comfort
88
Features
78
Style
92
Advanced Features
78
best offer for today
$62.63
Pros:

Several styles are available (not just for feet)

They offer safe and natural long-lasting heat

Made of natural ingredients

Cons:

A few buyers claim they are insufficient at certain temperatures

There is a strong likelihood that you have either seen these types of foot warmers or you have actually used them. What is nice about them is their simplicity and performance.

Read more

Effectiveness
It is advertised that these will begin warming in around 15 to 30 minutes. What is nice about them is they will last five-plus hours. Yet, they do not work that great in really cold temperatures.

Comfort
This design is really not about comfort but here is what is nice, when placed inside your shoes this insole will not make a hard clump and will not be uncomfortable.

Design Features
Simplicity is the name of the game here. There is no integrated technology or design features to worry about.

Style
Literally, all you need to do is remove one warmer from the package and shake it up. After which, place it in the interior of your shoe and you are good to go as it is air-activated.

Advanced Features
Really, there are no advanced features to speak of because, remember, this design is devoid of physical features.

Overall
All in all, it is seriously hard to beat the value here. You receive 30 pairs of these exceptional foot warmers and while each one is designed to be used once, they last a while.

7. ObboMed Warming

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
84.6
ObboMed Warming
Effectiveness
86
Comfort
83
Features
84
Style
87
Advanced Features
83
best offer for today
$69.98
Pros:

The cable is detachable

There are two sizes available

Designed with carbon fiber heating technology

Cons:

The cord does not allow your feet to spread apart very wide

The heating process does take a while

Unlike battery-operated designs, these warming botties are powered via a five-volt USB outlet. While you will need to deal with the accompanying cable, the end result is worth it.

Read more

Effectiveness
Due to the fact that this uses the latest carbon fiber heating technology, it is able to provide heats up to 109 degrees. But, as many users have pointed out, it takes a bit for the heating process to kick in.

Comfort
Due to the lack of cushioning on the bottom, you probably need to wear thick socks in order for them to be comfortable.

Design Features
There are two levels of heat you can select from, which is okay. Also, because this is corded, you are limited in your movement which can be a nuisance.

Style
It has been alluded to but these are booties that are designed to be worn. And, they are corded and produce their heat with the assistance of electrical power.

Advanced Features
Interestingly enough, the included cable is detachable. This comes in handy when you do need to move and walk with these on your feet.

Overall
Yes, there are issues with this design and some of you may feel this should not be on this list. But, the overall design is able to overcome the flaws at play.

8. Heat Holders Thermal

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
84.2
Heat Holders Thermal
Effectiveness
90
Comfort
92
Features
77
Style
84
Advanced Features
78
best offer for today
$15.77
Pros:

The inside of each sock is brushed

Overall, the provided comfort is great

Specially designed of heavy-duty bulk yarn

Cons:

Tends to shed quite a bit

There is no elasticity to keep them from falling down

There really is nothing too extraordinary about this last option. These are merely a pair of thermal socks that use their unique craftsmanship to provide warmth for your feet.

Read more

Effectiveness
In spite of the simplicity of this option, it is able to deliver optimal comfort. This is thanks to its specially developed heavy bulk yard and its thermal qualities.

Comfort
On top of the fact that this is mostly made of acrylic (with a mixture of nylon, polyester, and elastane added) the interior has been brushed to increase the softness.

Design Features
Here is a major problem with this model, admittedly. There is no elasticity at the top of the socks and what happens is they will slide down too frequently.

Style
Could it be as simple as a sock? Well, in this case, that is precisely the case.

Advanced Features
Most of you probably expected this but there are not too many advanced features to speak of here.

Overall
When it comes to straight-up performance, these socks reign supreme. However, they fall short in other areas and that hurts their quality a bit.

9. Cozy Products TT

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
83.6
Cozy Products TT
Effectiveness
86
Comfort
84
Features
88
Style
81
Advanced Features
79
best offer for today
$36.99
Pros:

There are three adjustable positions

Designed with energy efficiency in mind

It is an attractive design

Cons:

In the dark, the settings are impossible to read

Turning it on and off is inconvenient

Now, this right here is a different design entirely. It pretty much combines a 105-watt heater with an ergonomic footrest and the result is pleasant.

Read more

Effectiveness
As compared to a standard space heater that will crank out around 1200 watts of power, this only uses 90 watts. Still, though, some buyers have alluded to the fact that it can become uncomfortably warm.

Comfort
Really, this is not meant to deliver supreme comfort. It is merely a footrest and thanks to its two plastic legs, it can be elevated to a comfortable position.

Design Features
There are both adjustable height positions and heating settings that you can tamper with. About the only feature missing, however, is an automatic shut-off feature.

Style
Yep, this is simply a footrest that you place your feet on when you need them warm.

Advanced Features
It certainly would not have hurt to package this with a cheap remote as the on/off switch is located in an inconvenient location. Also, the settings can be hard to read at night.

Overall
Truthfully, this is a brilliant concept that is executed pretty well, for the most part. Some key features would have helped to put it over the top, though.

10. HotHands Insole

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
82.6
HotHands Insole
Effectiveness
85
Comfort
81
Features
78
Style
91
Advanced Features
78
best offer for today
$14.44
Pros:

They can be used anywhere

Work great when you are moving

The design is TSA approved

Cons:

A better adhesive would have been nice

Pretty small for larger shoes

Much like an option earlier, this is another set of insole warmers. Along the same line as other similar designs, all you need to do is remove the warmer from the package and shake it to activate it.

Read more

Effectiveness
It has been mentioned by a few users that these do not work the best when you are stationary. But, while moving around and walking, these can provide warmth for up to five hours.

Comfort
One thing to note is that these are quite small. So, if you have larger feet then these may not comfortability fit into your shoes.

Design Features
The lack of features here is not really an issue because the design is meant to be as simplistic as possible.

Style
As with the other similar foot warmer, you simply take these out of the package, shake them up, and insert them into your shoes.

Advanced Features
Much like the regular features, this is all but devoid of advanced features but it is not too big of a deal, considering the price.

Overall
For what these are, they are pretty good. Although, it is the type of product that is not going to blow your socks off. So, be aware of that.

Criteria Used for Evaluation

Effectiveness

Is there really a point to a foot warmer that can't warm your feet? As obvious as it sounds.

It really all comes down to the performance, does it not? No matter what you do in life or what you buy, the performance is literally everything. And foot warmers are not exempt from this notion. But, with so many different styles available, which ones outperform others? Well, this can be a difficult question to answer as individual designs and specific technologies and fabrics can make all the difference in the world. Take heating pads, for example. These typically will work via electricity (whether wired or battery-operated). Depending on the technology at play, some models will heat quicker and distribute the heat better. But, with electrical models comes the reassurance of knowing that the heat is never going to stop.

Now, what about non-electrical designs such as packets, socks, and boots. Well, with socks and boots, the materials will need to be warm and there must be insulation. For example, wool fabric and duck down insulation. Oh, and as far as air-activated warmers are concerned, these are some of the most popular due to their simplicity (and can deliver heat for hours).

Comfort

Your feet not only need to be warmed but they should also be comfortable in the process.

Naturally, if your feet are uncomfortably cold then warming them is going to provide a suitable amount of comfort. However, this sections goes far beyond the elements of heat. As that has already been discussed, let’s look at the physical comfort that you can expect from a foot warmer. Again, it goes back to the style and the craftsmanship of the design. But, most models will be designed to encapsulate your feet (either with boots, socks, or pads). So, you can look directly at the fabric composition to determine the comfort as certain materials will deliver more comfort than others.

Take plush or merino wool fabric, for example. These fabrics are naturally soft and when in direct contact with your skin, will provide an ample amount of comfort. Other fabrics, such as polyester, cotton, and nylon, can be great, as well. Also, do not forget about breathability. Yes, for products that are designed to provide heat it seems nonsensical to bring up the breathability. Yet, moisture control is important especially when sleeping. Do you really want your feet to sweat? Ideally, there should be just enough air circulation and breathability to prevent hotspots.

Features

This will not come into play with all models but for some, the features will be as important as any other aspect.

There is one big time advantage to opting for electrical foot warmers or any models that implement advanced technology. Of course, this means that they have enhanced functionality and fancy design features. Now, with regular insulated socks, boots, or even regular air-activated packets, they will all but be devoid of any design features. With boots or socks, you can always look for features for adjustability and security (such as Velcro straps and elastic tops) but it typically will not be anything more than that.

But, with technology at play, the functionality can become increased. In most cases, there will be two main features to look for. The first is if you can change the heat settings. Possessing the ability to do so will allow you to adjust the current heat to your liking. This small bit of versatility can make all the difference in the world. The other feature is an automatic shut-off feature. With designs that require constant electricity, accidentally leaving them on can draw unnecessary energy. Also, if you fall asleep with one, without an automatic shut-off feature, it could end up overheating you.

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Arthritis

Did you know that heat therapy has been proven to help with arthritis pain? Another great use for these foot warmers is pain relief. If you have a job that requires you to stand all day long, an insert or sock will be a better option for you. If you're just looking to soothe the aches at home, any of these 10 products will be a great option.

Fabric Choice

With the models that utilize fabric, which will be around 90 percent of them, look for softer fabrics that feel comfortable against your skin. But, also do not forget about breathability with certain fabrics as you do not want to feel overheated. A breathable cotton is ideal.

Features

Here is the reality of the situation; for the most part, you will only need to worry about design features with electrical models. This is not to say that non-electrical models will be devoid of features but they will not be as prominent as they will be with electrical designs. In fact, one of the benefits of these designs is they typically will allow you to adjust the heat. Also, some will come equipped with automatic shut-off functionality which can be convenient.

Other Factors to Consider

Style

A lot of what has already been documented has been referencing the different styles of foot warmers that there are. So, there may not be much new information here. Yet, this section is critically important because you need to choose the style that suits you best. The question is, how do you determine what style you want? Well, answering this question can help a little. Do you require a foot warmer at home or on the go? If you simply want warmer feet when you are sleeping or relaxing in the comfort of your home, you could go with an electrical model as these are better for stationary use. Plus, they come in different styles themselves (such as heating pads, footrests, and even booties).
If you require on-the-go warmers, though, your options are a bit more limited. But, this is where thermal socks and air-activated packets will be your best friends. In addition, with the packets, you can take more than one of them with you in case they begin to wear out.

Advanced Features

Let’s just begin by saying that not all models out there will have advanced features. Some will not even have design features but we digress. Anyway, only certain models will come equipped with a certain something that can classify them as “advanced”. In most cases, it will be for electrical designs that come included with a controller. With an integrated controller, you do not have to adjust any settings from the base unit and can do so conveniently. As with any modern technology device, it is better with a convenient controller.

Frequently Asked Questions

q: What causes cold feet?
a:

Are you slightly interested to why you are even here, in the first place? That is if you need foot warmers because your feet are constantly colder than any other part of your body. So, what causes cold feet? Well, outside of the obvious fact that they can get cold if you are not wearing socks, there are other specific reasons why it can occur.
For starters, it could be due to type 1 and type 2 diabetes. Believe it or not, diabetes can cause feet to be cold due to nerve damage and sometimes they can be cold to the touch. Also, poor circulation can lead to cold feet and is one of the more common causes. Oh yeah, and even anemia can be a common cause of it.

q: What makes air-activated warmers work?
a:

It seemed appropriate to ask this question in regard to this specific type of foot warmer because if you did not know, you would really have no clue how they work. Basically, the packets include a mixture of ingredients that when exposed to the air (which is why they need to be shaken) will produce heat. While the ingredients may change based on the model, a fast oxidation process is what happens.
The ingredients could include water, iron powder, salt and even charcoal and then they can combine to create heat (with the addition of air).

q: How do you clean a heating pad?
a:

As with the last question, let’s focus on a specific style. And, this question is referring to how to clean models that are electrical (more or less). What you need to do is to either disconnect the power cable or detach the fabric attachment (if it can be). The main reason for this is you do not want to mess with the electrical components. All you need to do is clean the fabric and the other areas that have been exposed to your feet.
Unless otherwise specified by the seller, you should be fine to place the actual fabric in a washing machine (unless it can’t be detached from the main unit). You just want to avoid exposing any electrical components to water and if you do that, you can really wash them in several manners (just do not use bleach or dry clean one).

q: Is electrosmog an issue here?
a:

For those of you who are unaware what electrosmog is, it is an invisible electromagnetic radiation that results from both mains electricity and wireless technology. And, this is responsible for a condition known as ES. But, the question is, do foot warmers that utilize electrical technology have an issue with this?
The short answer is no and the reason is the magnetic and electrical fields that are generated by foot warmers, under blankets, and heating pads will be below the legal values that are mandated in Germany.

q: Can they be applied to direct skin?
a:

Once again, and this has been a theme throughout this entire guide, this comes back to the style that is being alluded to. Clearly, with booties and socks, they can be applied to your skin as they will be designed with materials that are naturally warm and possible insulation. But, when it comes to units that draw their heat via electricity it may be wise to avoid direct contact with your skin.
The main reason is some of these units can reach beyond 100 degrees and in case you do not know, that is hot. Have you ever taken a scorching shower? For most people, that will be way too hot. Then again, everyone’s skin is different and if you can tolerate it, feel free. Just avoid burning yourself and you will be fine.

q: What are the advantages of heat?
a:

More likely than not, you have heard of temperature therapy and, more specifically, heat therapy. Essentially, this type of therapy is derived from the principle that heat has a positive effect on the body. Heat can help to promote circulation and can expand the blood vessels and therefore improve your metabolism.
In addition to this, heat can stimulate the sensory receptors in your skin. Basically, what will happen is transmissions of pain signals will be decreased to your brain and can relieve pain because of it (on top of warming your feet).