Quick Answer: The best under-desk heater for 2026 is the Cozy Products Toasty Toes (around $60) — a 105-watt heater built into an ergonomic footrest with three adjustable positions, so it works flat, inclined, or upright. The Lasko MyHeat Personal Space Heater (around $25) is the best budget pick at 200 watts and 682 BTUs in a 6-inch footprint. For a flat, no-footrest option, the MAXCOM Heated Floor Mat (around $30) draws just 55 watts across 8 temperature settings with a 3-hour auto-shutoff. Pick a purpose-built low-wattage unit over a general room space heater — it’s the safer choice for something sitting inches from your feet all day.
Cold feet are the actual comfort problem for most home-office setups, not a cold room. Central heat keeps the air around your head and shoulders warm, but your feet sit still on a floor that’s often several degrees cooler, especially over hardwood or tile. Cranking the thermostat to fix that wastes energy heating a whole room to solve a problem at floor level. A dedicated under-desk heater or foot warmer solves it directly, for a fraction of the wattage — we compared four options on warmth, warm-up speed, and how much desk space they actually take.
Under-desk heaters by the numbers
- 105 watts: The Cozy Products Toasty Toes runs on just 105 watts, per Cozy Products — low enough to leave on all day without tripping a shared circuit or meaningfully moving your power bill.
- 682 BTUs: The Lasko MyHeat outputs 682 BTUs at 200 watts, enough heat for the space directly under a desk without warming the whole room.
- 55 watts: The MAXCOM Heated Floor Mat’s low-power design draws only 55 watts, per MAXCOM, the lowest wattage in this comparison, with an 8-level temperature dial.
- 30 seconds: A graphene panel foot warmer’s 360° radiant element reaches full warmth in as little as 30 seconds from a cold start, versus several minutes for a resistive coil heater.
Best under-desk heaters at a glance
| Heater | Best for | Wattage | Format | Price | Rating |
|---|---|---|---|---|---|
| Cozy Products Toasty Toes | Best overall | 105W | Footrest + heater | ~$60 | ★★★★★ |
| Lasko MyHeat Personal Heater | Best budget | 200W / 682 BTU | Compact tabletop/floor | ~$25 | ★★★★☆ |
| MAXCOM Heated Floor Mat | Best heated mat | 55W | Flat mat, 8 temp levels | ~$30 | ★★★★☆ |
| Graphene Panel Foot Warmer | Best fast warm-up | ~150W | 360° radiant panel | ~$40 | ★★★★½ |
1. Cozy Products Toasty Toes — Best Overall
Cozy Products Toasty Toes Ergonomic Heated Footrest
- 105-watt heater built into an ergonomic footrest, per Cozy Products, with two heat settings and a hi-lo-off switch.
- Three adjustable positions — flat, inclined, or upright — so it doubles as a footstool, an angled foot warmer, or a heated panel depending on how you sit.
- 12" x 18" x 5" footprint, safe to touch, and built to run all day without tripping a shared circuit.
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The Toasty Toes earns the top spot because it solves two problems in one purchase: most desk setups could use a footrest anyway, and this one heats. At 105 watts it’s cheap to run continuously, and the three positions mean it adapts to how you actually sit — flat under a desk chair, inclined for a more relaxed footrest angle, or upright as a heated panel your feet lean against rather than rest on. It won’t heat a room, but that’s not the job; it keeps the coldest part of your body warm for less power than a single incandescent light bulb used to draw.
2. Lasko MyHeat Personal Space Heater — Best Budget
Lasko MyHeat Personal Space Heater
- 200 watts and 682 BTUs of output, per Lasko, in a compact 6-inch tall, 4"x4" footprint.
- Simple manual controls, fully assembled out of the box, with automatic overheat protection.
- ETL Listed and small enough to sit on the floor under a desk or on a shelf next to your feet.
For around $25, the MyHeat is the cheapest way into dedicated under-desk warmth. It skips the footrest function and the multiple heat levels of the pricier options, but 682 BTUs at 200 watts is genuinely enough heat for the space directly around your feet, and the tiny 4”x4” footprint means it barely registers as clutter. It’s a straightforward on/off heater rather than a full-featured product, which is exactly what makes it the easy budget pick.
3. MAXCOM Heated Floor Mat — Best Heated Mat
MAXCOM Heated Floor Mat for Under Desk
- Draws only 55 watts, per MAXCOM, the lowest power draw in this comparison, with 8 adjustable temperature levels.
- Auto shut-off after 3 hours of continuous use, a safety feature most flat heating mats include.
- Lies flat on the floor rather than propping your feet up, so it pairs with an existing footrest instead of replacing one.
If you already have a footrest or just want your feet resting on a warm surface rather than propped up, the MAXCOM’s flat mat format is the better fit than a footrest-style heater. At 55 watts it’s the most efficient option here, and 8 temperature levels give finer control than a simple hi-lo switch. The 3-hour auto shut-off means it won’t run all night if you forget to switch it off, which matters more on a flat mat you might not glance at as often as a footrest you’re actively sitting on.
4. Graphene Panel Foot Warmer — Best Fast Warm-Up
360° Graphene Radiant Foot Warmer Panel
- Graphene radiant heating element wraps warmth around your feet and lower legs from multiple sides instead of one flat surface.
- Reaches full warmth in as little as 30 seconds from a cold start, far faster than a resistive-coil heater.
- Upright panel format stands beside or in front of your feet rather than underneath them, freeing up floor space for a footrest.
Graphene heating elements warm up dramatically faster than the resistive coils inside most compact heaters — 30 seconds to full warmth versus several minutes for the Lasko or a coil-based mat. The 360° panel design also wraps heat around your feet and shins from multiple angles instead of warming just the surface you’re standing or resting on, which some people find more even. It stands upright rather than lying flat, so it’s the pick if floor space under your desk is already claimed by a footrest or a cable tray.
How to choose an under-desk heater
Start with wattage — anything from 55W to 200W is built for continuous under-desk use and draws little enough power to run all day; steer clear of repurposing a general 1,500W room space heater down there, since that wattage is designed for open-room airflow, not sitting inches from your feet, a power strip, and your legs for hours. Decide between a footrest-style unit like the Toasty Toes, which doubles as ergonomic support, and a flat mat like the MAXCOM if you already have a footrest and just want a warm surface. Check for auto-shutoff or a tip-over switch — most purpose-built units include one, and it matters more the longer you plan to leave it running unattended. Finally, weigh warm-up speed: a graphene panel hits full heat in seconds, while a resistive coil or mat can take a few minutes, which matters if you only need warmth in short bursts between standing breaks.
Pairing warm feet with the rest of a comfortable setup is worth doing at the same time. Our best desk fan picks solve the opposite seasonal problem, our best desk humidifier picks address dry winter air that often shows up alongside a cold floor, and if you’re building a full sit-stand setup our ergonomic desk setup guide covers the rest of the checklist beyond temperature. An anti-fatigue mat is also worth checking if you stand for part of the day — some heated mats can double up with one, others can’t, so measure your floor space before buying both.
The bottom line
The Cozy Products Toasty Toes is the best under-desk heater for 2026 — its 105-watt heater and adjustable footrest solve cold feet and a missing footrest in one purchase. The Lasko MyHeat is the cheapest dedicated option at around $25, the MAXCOM Heated Floor Mat is the most efficient at just 55 watts if you already have a footrest, and a graphene panel heater is the pick for the fastest warm-up when you only need heat in short bursts. Whichever you choose, stick to a purpose-built low-wattage unit — it’s a safer and cheaper fix for cold feet than turning up the thermostat or tucking a full-size space heater under your desk.