Your next innovation starts with a proven foundation
With over 6,500 components spanning water heaters, boilers, furnaces, and heat pumps for both residential and light commercial applications, we bring proven platforms and deep combustion expertise to every partnership.
Our gas-adaptive technologies are ready for today's fuels and tomorrow's hydrogen future, while our global reach ensures the reliable supply chain you need to scale confidently.

Water Heaters
Adaptable components for gas storage water heaters, managing combustion safety, temperature regulation, and compliance with evolving efficiency standards. Software-based customization lets OEMs tailor parts without hardware redesigns.

Furnaces
Integrated electronic and mechanical components that govern combustion in residential forced-air heating systems. We partner with OEMs to co-develop custom solutions that accelerate product development and differentiate end products in a commoditized market.

Water Boilers
Core electronic and mechanical components for residential and commercial gas-fired central heating. Integrated solutions, including gas valves and adaptive combustion systems, that optimize efficiency and support installation across diverse environments.

Heat Pumps
Advanced solutions supporting high-efficiency heat pump and hybrid HVAC systems. Customizable control boards, software platforms, and integration technologies essential for optimizing performance and seamless compatibility with smart home ecosystems.
Why OEMs choose to develop with GCS
When you partner with our team, you're not just buying components, you're gaining a collaborative development partner with a proven approach. From initial concept through scaled production, we work alongside your teams to help reduce risk, accelerate timelines, and deliver market-ready heating solutions with confidence.

Build on a head start
We invest in platform thinking, regulatory planning, and technology innovation long before any OEM partnership begins, which is unique in the industry. While others react to market changes, we anticipate them.
This frees up your team to focus on innovation and product differentiation - the work that drives premium pricing and market share. You can allocate engineering resources to what makes your heating systems unique, while our validated combustion control platforms handle the complex basics that can derail your timelines if they fail.
Co-develop smarter. Launch stronger.
When you're ready to move from concept to prototype, our teams work directly alongside yours to configure, customize, and validate solutions.
We're not just a supplier sending components; we're partners who understand that most bespoke needs can be handled through configurable firmware rather than time-consuming hardware redesigns.

Close the gap with in-region expertise
Our in-region engineering teams close the feedback loop faster than competitors working across time zones. This means fewer delays, quicker resolution of integration challenges, and the ability to fine-tune firmware, logic, and mechanical interfaces while minimizing costly late-stage changes.

Faster certification, fewer bottlenecks
Whether you're across the street or across the world, it’s easy to check in, stay informed, and make changes from anywhere right from the First Alert app. Staying connected means peace of mind, even when you’re miles away.
Deliver without disruption
When you're ready to scale, our proven production capabilities and in-region manufacturing ensure reliable delivery that grows with your business. We actively manage inventory levels and delivery timing to help you stay responsive when demand surges or plans shift unexpectedly.

Built for quality. Proven at scale.
Our quality standards are designed to protect your bottom line. Stringent QA processes and onboard diagnostics help minimize field failures and warranty claims, which can damage brand reputations and drain service budgets. We deliver systems that arrive fully integrated and validated, eliminating sub-assembly work and reducing your end-of-line testing requirements.
Our track record with high-volume manufacturers proves we can handle your most demanding production schedules without compromising quality or timeline commitments.
Raise the performance with Resideo components
With a selection of over 6,500 innovative solutions for boilers, water heaters, furnaces, and heat pumps, your HVAC systems are well equipped for the energy transition.

Shop Resideo Combustion Controls
Equip your heating with cutting-edge combustion controls that set new safety standards and drive commercial opportunities.

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Check out the Resideo Newsroom for the latest products and technology news, featured articles and tips. Keep informed and stay ahead in an exciting time for energy-efficient comfort control.