Your HearthFoot™ Heated Insoles use ThermoSphere™ heating technology to provide steady, foot-hugging warmth with a single optimised heat profile — no level switching required.

Key Features

• Single optimised heat profile: Simple on/off control for consistent comfort.
• Full-length warmth: Even coverage from heel to toe for both feet.
• USB-powered design: Connect to a compatible power source for portable heat.
• Trim-to-fit guides: Cut along the printed lines to match your shoe size.
• Ultra-thin, flexible build: Fits inside most shoes and boots without bulk.
• Discreet cable routing: Thread the cable up your ankle to your pocket or pack.

Your HearthFoot™ Heated Insoles are powered via USB and designed to be paired with a portable power bank (sold separately). You may use an official hand hearth Power Bank or a compatible third-party model.

If You Purchased a hand hearth Power Bank

1. Connect the included USB-C charging cable to the power bank.
2. Plug the other end into a wall adapter, laptop, or USB port.
3. The LED indicators will display charging progress.
4. Charging is complete when all LEDs remain solid.

Note: Hearthcell Power Banks are shipped separately and may arrive after your heated insoles. Please do not panic if your insoles arrive first.

If You’re Using Your Own Power Bank

• Output: Must be 5V/2.4A minimum.
• Capacity: 5,000mAh or higher recommended for several hours of use.
• Connection: USB-A (connect using the included dual charging cable routed from the insoles).
• Performance may vary depending on brand and capacity.
• For safety, only use CE/FCC-certified power banks.

For best performance and safety, we recommend official hearthcell Power Banks.

Follow these steps to switch on your HearthFoot™ Heated Insoles. The insoles use a single optimised heat profile for steady, reliable warmth.

1. Connect your charged power bank to the USB cable provided with the insoles.
2. Press and hold the power button on the cable for 3 seconds to switch on.
3. The LED will glow white while heating is active.
4. Press and hold the button again for 3 seconds to power off.

Runtime will vary depending on the capacity of your power bank and outdoor conditions.

With proper care, your HearthFoot™ Heated Insoles will deliver reliable warmth and comfort season after season.

Cleaning Instructions

• Always disconnect and remove the batteries before cleaning.
• Do not machine wash or submerge in water.
• Gently wipe the surface of the insoles with a damp cloth and mild soap if needed.
• Allow the insoles to air dry completely before reconnecting the batteries.
• Do not tumble dry, wring, iron, or dry clean.

Storage Instructions

• Ensure both insoles and batteries are completely dry before storing.
• Store in a cool, dry place away from moisture and direct sunlight.
• Disconnect and store the batteries separately when not in use.
• For seasonal storage, charge the batteries to around 50% and top up every 3 months to maintain health.

Note: Failure to follow care instructions may damage the heating elements or batteries and void warranty coverage.

Having issues with your HearthFoot™ Heated Insoles? Review the causes and solutions below:

1. Insoles Not Heating

• Cause: Batteries not connected | Solution: Ensure each insole’s cable is securely connected to its battery.
• Cause: Batteries not powered on | Solution: Press the button on each battery to activate output.
• Cause: Batteries flat | Solution: Fully recharge both batteries before use.
• Cause: Damaged cable or connector | Solution: Check cables for damage. Contact support if replacements are required.
• Cause: Faulty heating element | Solution: Contact hand hearth support for inspection or replacement.

2. LED Not Lighting

• Cause: Button not held long enough | Solution: Press and hold for 3 full seconds until LED lights.
• Cause: Batteries flat | Solution: Recharge both batteries fully before use.
• Cause: Loose connection | Solution: Re-seat the cable between the insole and battery.
• Cause: Faulty button or LED | Solution: Contact support if the LED never lights.

3. Uneven Heating Between Insoles

• Cause: Battery levels uneven | Solution: Fully recharge both batteries before use. Swap batteries between insoles to test.
• Cause: Loose cable inside insole | Solution: Reconnect and check cable seating.
• Cause: Faulty heating element | Solution: Contact support if problem persists.

4. Batteries Not Charging

• Cause: Faulty charging cable | Solution: Try another USB charging cable or adapter.
• Cause: Dust or debris in charging port | Solution: Clean gently with a dry cloth before charging.
• Cause: Battery worn out | Solution: Contact support for replacement batteries.

5. Batteries Draining Too Quickly

• Cause: Continuous use in very cold weather | Solution: Keep batteries warm in a pocket until use.
• Cause: Batteries not fully charged | Solution: Fully recharge before use.
• Cause: Normal runtime limitation | Solution: Carry spare batteries for extended outdoor sessions.

All Hand Hearth products are covered by our standard quality guarantee.

• 60-Day Money-Back Guarantee on all items.
• 60-Day Replacement Warranty for manufacturing defects.

How to Claim

To request a replacement or claim under warranty, please provide:

1. Your order number
2. A brief description of the issue
3. Clear photos or videos if possible