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★★★★★
4,8/5 (3.928+ reviews)

Heat Grove Mug Warmer Coaster with Auto Sensor and Metallic Rim

Regular price $134.95 Sale price$39.95 Save 70%
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NOTICE: This product is one of our bestsellers and is already sold out in our physical store. If the “ADD TO CART” button still works, it means the product is still in stock online in limited quantities.

Coffee that is still hot on the third sip

This round coaster plugs into a wall outlet and warms your mug from underneath, so coffee, tea or milk stays at drinking temperature while you work. A gravity sensor switches the heat on when a cup is placed and off when you lift it, so there is nothing to remember. The 5 in (12.8 cm) glass-look top wipes clean, vents underneath let heat escape and a non-slip base keeps it in place. Dark green, pink, light blue or red with a decorative metallic rim.

Why you'll love it

  • Plugs into the wall: Mains powered through its power cable, ready as soon as it is connected.
  • Auto on and off: A gravity sensor heats when a cup sits on it and stops when it is lifted.
  • Glass-look top: A smooth 5 in (12.8 cm) plate that wipes clean.
  • Stays put: A non-slip base and heat vents keep it steady and cool underneath.
  • Four colors: Dark green, pink, light blue or red, each with a metallic rim.

Perfect for: desks, bedside tables, reading nooks and gifts for tea drinkers.

We offer fast, free shipping with no minimum order value. Every order can be tracked at any time using its own tracking number.

We offer a 30-day right to return or exchange if for any reason you are not satisfied with your order.

The Heat Grove promise

30-Day Money-Back Guarantee

Try it at home for 30 days. If it doesn't keep you as warm as you hoped, send it back and we'll refund you — no hassle.

Every order ships with tracking, and our team is one email away at support@heatgrove.com.

Gifts they'll actually be excited to open


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Frequently asked questions

Most of our heaters and warmers give noticeable heat within one to two minutes. Exact times are listed in the product description.

Our heaters are designed with safety features such as overheat protection, and many also have tip-over protection — check the product description for the exact features. Never cover a heater and always follow the instructions.

Plug-in products come with a US-compatible plug or adapter. Car products use the standard 12V outlet found in US cars.

Because you only heat the space or person you need, you often use far less energy than heating the whole house. The wattage is shown on every product page.

Yes, you can return items within 30 days after delivery. Contact us at support@heatgrove.com and we'll guide you through it.

As soon as your order ships you'll receive a tracking number by email.

We accept major cards, PayPal and Apple Pay. All payments are encrypted and processed securely.

Email us at support@heatgrove.com — we usually reply within 2 business days.

Tracked delivery

Every order ships with a tracking number.

30-day returns

Not happy? Send it back within 30 days.

Secure checkout

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Friendly support

Real people, quick replies by email.

Mug Warmer Coaster – Electric Coffee Cup Warmer with Auto On Off