WHISPERHEAT

Under Desk Warmer - Silent and Energy Efficient - Personal Under Desk Heater for Legs and Feet -

$79.99

1945+ bought in the past month

About this item

  • Silent Radiant Heat: Enjoy quiet, fanless warmth for your legs and feet, perfect for comfort at work, home office, or any personal space
  • Customizable Warmth: Features 3 simple buttons to change heating levels and an auto-shutoff timer. Level 1 is the lowest setting and level 3 is the highest. Warms your legs and feet while sitting at your desk in a discreet and gentle fashion.
  • Safe & Energy Efficient: Low power consumption ensures saving on energy bills. Designed with 2 or 4 hour shutoff timer for additional savings and safety.
  • Portable & Compact: Slim, lightweight, and foldable design. Easily move your personal heater from your desk to your dorm, studio or office.
  • Versatile Use: Perfect for indoor environments and safe for use around pets and children. Ideal for warming feet and legs under desks, in nurseries, or even for keeping pets cozy in winter.
$79.99

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Product details
BrandWHISPERHEAT
Special FeatureAdjustable Temperature
ColorGray
Form FactorMat
Indoor/Outdoor UsageIndoor

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Customer reviews

4.2435 ratings
  1. 563%
  2. 413%
  3. 30%
  4. 213%
  5. 113%

Customers say

Customers find the space heater comfortable and cozy, with consistent heat that is silent and easy to set up and use.

★★★★★

Silent and surprisingly effective, even on the default settings

draagonflyJuly 16, 2025✓ Verified purchase

I have been pleasantly surprised by how much warmth this provides under my desk. My feet and legs are not cold even on the lowest setting, and even when I have a skirt on. I love that it has an auto-off feature, and it's nice that you can adjust all the settings for time and temp, but honestly, the default setting has been doing a wonderful job for me without fussing with anything else. I also like that it's silent. There is nothing to indicate when the heater is on or off audibly. It was super easy to set up, and although I was worried about how long it would continue standing up, so far it's been going a month without falling over. There are supports to add to the corners that help. It IS a bit bigger than other normal space heaters, but I don't notice it under the desk in the office (I have a cube) and no one else seems to have noticed it either (perhaps the cleaning crew, but no one has said anything!). I can't say enough how well this works. Highly recommend. I even bought it on the "discounted" program because I guess someone else returned it, and I haven't had one problem with it at all. Works perfectly. Read more

★★★★★

Best under the desk heater

crystalMarch 7, 2026✓ Verified purchase

If you’re looking for a heater for under your desk, this is hands down the best one I’ve ever purchased. In the past I’ve bought several heaters from Walmart, even some of the nicer ones, and this one is still far better. Most of the forced air heaters dry the air out and get way too hot, but this one gives off a really comfortable, steady warmth. The best part is how quiet it is. You don’t even notice it’s on, but it keeps you perfectly warm. I’m really happy with this purchase and would definitely recommend it. Read more

★★★★★

Great product

Adele R.February 28, 2026✓ Verified purchase

Item gives off a very good amount of radiant heat. I have paired it with the heated floor mat and the products work perfectly together to keep your legs and feet warm while working. Read more

★★★★☆

Quiet and Functional, But Not Very Hot

IsabelJanuary 16, 2025✓ Verified purchase

This product has three speeds and works great overall. However, I noticed that it doesn’t get very hot; even on the highest setting, it’s more of a warm temperature. I’m used to using a traditional heater on my legs, so this might just take some getting used to. On the plus side, it’s very quiet compared to a standard heater, which is a big advantage, especially in quieter spaces. While it does warm up and performs well, I think it’s best suited for use in an office setting. When I’m at home, I’ll likely stick to my regular heater for more intense warmth. Overall, it’s a functional product that works as described, just not ideal if you’re looking for significant heat output. Read more

★☆☆☆☆

Don’t Waste Your Time

Kevin P QuattlebaumFebruary 16, 2026✓ Verified purchase

I bought 2 of these units. The first one wouldn’t even turn on and the replacement unit doesn’t get nearly warm enough even on the highest setting. It also smells like an old heating pad. Returning this one too. Read more

★★★★★

Nice and toasty

Kindle CustomerMarch 14, 2026✓ Verified purchase

This warmer is great!! It really keeps me warm and toasty!! I work virtually in a part of the house that was an addition. So, this part of the house is cold in the winter and requires a space heater. With this warmer, I don't need to space heater!! I also settle it at the lowest setting because it does get pretty hot. Read more

★★★★★

Not forced heat but works great

CustomerFebruary 5, 2026✓ Verified purchase

Working very well seen reviews that this didn’t work it does work it’s not forced heat Read more

★★☆☆☆

Doesn't put out much heat.

Mitzi ShawDecember 4, 2025✓ Verified purchase

Unfortunately I'm having to return this heater. It is very quiet which is great for the work environment which is why I'm giving 2 stars. This heater, on its highest setting, doesn't put out much heat at all and this could be a design limitation since it doesn't have a blower like a traditional space heater. Read more

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