When Hargun stepped into the business, he found a familiar problem. Heating products were widely used, yet poorly designed. Most relied on outdated construction, minimal safety mechanisms, and inconsistent temperature control. Despite heat being one of the most widely accepted therapies for pain and muscle recovery, it had never been treated as a serious, engineered category in India.
At the same time, Indian consumers were already spending over ₹22,000 crore annually on pain relief and comfort through pills, balms, patches, and unsafe heating devices. Heat existed everywhere in practice, but nowhere as a structured category.
To understand the gap better, Hargun began by dismantling existing products, eventually studying more than a hundred heating pads and heat-based devices from India and abroad. The findings were consistent. Indian products lacked safety layers and control systems, while global alternatives were expensive and unsuitable for Indian usage patterns and climate. The issue was not demand, but design.
Heatronics was repositioned around a clear idea: heat needed to be rebuilt as a precision system, not a generic appliance. The company narrowed its focus to pain relief and recovery, treating heat as a tool that affects pain signalling in the nervous system, muscle repair and circulation in the body, and inflammation response at a biochemical level. These effects vary by age, body type, and environment, making one-size-fits-all solutions ineffective.
Execution followed quickly. Heatronics invested in 100% in-house manufacturing in India, developed its own six-layer TheraFlex heating architecture, and secured ISO 13485 medical device certification along with CDSCO Class B approval. The company also holds two design patents and had previously supplied heating technology as an OEM partner to more than 20 brands.
The shift to D2C has shown early traction. Heatronics currently operates at ₹7.5 crore ARR, has maintained roughly 50% year-on-year growth, and recorded ₹1.45 crore in gross sales within 111 days of its D2C launch. The business has remained bootstrapped so far.
The newly announced angel round marks the next phase. In the near term, Heatronics plans to expand into portable, rechargeable, and precision-controlled heat devices designed for daily pain and recovery needs. While future extensions may include home heating products and heated clothing, the company remains anchored on pain management as its core focus.
“Heat has always worked,” said Hargun Singh Chawla. “What hasn’t worked is how products around heat were built. We’re rebuilding this category with safety, consistency, and real use cases in mind.”
Heatronics aims to establish Heat-Tech as a defined category from India, with products designed for Indian users first, and global relevance over time.
