How does the far infrared (FIR) technology work to heat the body?

Tired of using hot water bottles that lose heat quickly, or electric blankets that can be uncomfortable and dry out your skin? Discover the revolutionary power of far infrared (FIR) technology with Feel the Warmth.

Unlike traditional heat sources that only warm the surface of your skin, FIR radiation penetrates up to 2 inches below the skin, reaching deep into the tissue. This deep penetration provides targeted relief for pain and discomfort, promotes circulation, and accelerates healing.

We asked the expert: Dr. Adrian Smales BEng(Hons), MBA, PhD, a Research Fellow in Healthcare Informatics, to explain more about it. Simply check out the Health Benefits section of the website to watch a short video and learn more about FIR technology!

What are the care instructions for the Super Kidney Warmer, Kidney Heat Belt, and Heat Pad?

The fabrics are 100% Polyester. We recommend Hand Wash Only and drip dry. Do NOT tumble dry.  Please remove the battery before washing, and never exceed 5v.

How long will the 10,000mAh Powerbank last?

• Up to 10 hours with the Infrared Kidney Heat Belt

• Up to 8 hours with the Infrared Super Kidney Warmer

• Up to 6 hours with the Infrared Heat Pad

Can Gentle Heat Lower Everyday Anxiety and Stress?

In 2025, Feel the Warmth worked with Dr Adrian Smales, PhD, MBA, BEng(Hons) to run an 8-week pilot where everyone used a far-infrared (FIR) heat belt showed clear drops in anxiety and stress and better sleep. The scale of improvement was big enough that most people would notice the change in everyday life – think fewer “on edge” moments, more calm, and an easier time winding down at night. While this was an early-stage study (no separate control group), Dr Adrian Smales concluded that the signals are consistent and encouraging. Read the results in full!