Resideo by HoneyWell

About Resideo by Honeywell

Resideo Technologies is one of the most recognized names in residential comfort and HVAC controls — and for good reason. Founded in 2018 as a spin-off from Honeywell International Inc., Resideo carries forward more than 130 years of Honeywell engineering heritage into an independent, publicly traded company focused entirely on home comfort and security solutions. Under a long-term exclusive license agreement, Resideo markets and sells its products under the beloved Honeywell Home brand, giving customers the trusted quality they have relied on for generations.

With a presence in over 150 million homes around the world, Resideo has built its reputation on delivering reliable, precision-engineered controls that keep HVAC systems running safely and efficiently. Whether a technician is servicing a radiant hydronic heating system or a homeowner is upgrading to a connected smart home, Resideo's broad catalog — spanning more than 1,500 products — offers a solution for virtually every situation.

Smart Climate Control

At the heart of Resideo's product lineup is its extensive range of Programmable & Smart Thermostats. From simple non-programmable units to advanced Wi-Fi-enabled models that integrate with voice assistants and smartphone apps, Resideo thermostats are engineered for easy installation and intuitive use. The Honeywell Home thermostat portfolio covers every lifestyle and HVAC configuration, making it one of the most versatile thermostat families on the market.

Boiler & Hydronic Heating Controls

Resideo is widely regarded as the industry standard for boiler and hydronic heating controls. The brand's Boiler Safety Controls & Aquastats — including the iconic L8148 and L8124 Aquastat® Relay series — are immersion-type controllers that combine high-limit protection with switching relay control of burner and circulator motors. These devices have earned a massive installed base among HVAC professionals precisely because of their reliability and universal compatibility.

Complementing these safety devices, Resideo's Temperature Control Relays provide precise switching control for a wide range of heating system configurations, from single-zone setups to complex multi-zone hydronic systems. And for those maintaining or repairing existing boiler systems, Resideo's Boiler Control Boards & Modules offer genuine replacement electronics designed to restore proper system operation quickly and reliably.

Indoor Air Quality

Maintaining proper humidity levels is just as important as temperature control for a comfortable, healthy home. Resideo's line of Humidifier & Dehumidifier Parts covers everything from steam and bypass humidifiers to quality service replacement components such as filters, pads, and blower assemblies — making it easy for contractors and DIYers alike to keep whole-home humidification systems running at peak efficiency.

Why Choose Resideo by Honeywell?

• Backed by over 130 years of Honeywell innovation and engineering expertise
• Products installed in over 150 million homes worldwide
• Universal compatibility across many Resideo residential product lines simplifies stocking and service
• Honeywell Home brand recognition trusted by HVAC professionals and homeowners alike
• Comprehensive portfolio covering thermostats, boiler controls, aquastats, and air quality solutions