Quiet-One Boiler Safety Controls & Aquastats
About Quiet-One by Smith's Environmental Products
Since 1991, Smith's Environmental Products has built a reputation as a leading manufacturer of fan convectors and hydronic heating solutions, operating out of Randolph, Massachusetts. Their flagship brand, Quiet-One, has become synonymous with whisper-quiet, energy-efficient comfort in both residential and commercial settings across the United States and the United Kingdom.
The Quiet-One name isn't just a marketing label — it reflects a genuine engineering philosophy. Smith's products are engineered around low-noise motor assemblies and highly efficient heat exchangers, making them ideal for spaces where traditional baseboard or radiator heating falls short. The brand's core lineup includes kickspace heaters, baseboard heaters, panel radiators, and fan convectors, each designed to deliver maximum BTU output from a compact footprint.
The Quiet-One Kickspace Heater
The flagship Quiet-One 2000 Series kickspace heaters are purpose-built for hard-to-heat areas — think kitchen toe kicks, stair risers, dressing rooms, bookcases, and restaurant booth seating. These totally enclosed units slip easily under cabinets or into walls without requiring screws or access panels. They connect to a wide range of heat sources, including boilers, hot water heaters, heat exchangers, ground source heat pumps, and geothermal systems, making them one of the most versatile hydronic terminal units on the market.
A key feature of the 2000 Series is its "High E" heat exchanger, which pairs low water content with a low-power motor and easy-glide sleeve bearings. The result is an electrical draw comparable to a 40-watt light bulb, while still delivering certified BTU performance across four available sizes. The built-in thermostat responds quickly to temperature changes, activating the fan only when the boiler is on and the water reaches approximately 110°F — saving fuel and reducing wear.
Aquastats & Boiler Controls
Complementing their heater lineup, Quiet-One offers a range of Boiler Safety Controls & Aquastats designed specifically for use with their kickspace heater systems. Clip-on aquastat kits are available in both lower-temperature and higher-temperature configurations, giving installers and homeowners precise control over fan activation thresholds to suit different system designs and comfort preferences.
Built for Residential and Commercial Applications
Whether you're retrofitting a tight kitchen remodel, outfitting a commercial restaurant, or specifying heating for a new construction project, Quiet-One products are engineered to fit seamlessly into hydronic systems of all types. Their tool-free installation design, customizable grille colors, and optional quick-fit hose kits make them a favorite among contractors and DIY installers alike. Smith's commitment to continuous product development since its founding ensures the lineup stays current with evolving efficiency standards and design trends.