New England Weather can be Rough

But with RST, there's no better place to be!

The Allure of Unico Systems

Efficiency, Functionality & Elegance

AIC - Inspired by Nature

Perfecting the Art of Heat Transfer

True Comfort Begins with Crete-Heat

Radiant Installation Simplified

Representing a Systems Approach to Heating, Cooling & Hot Water

RST Thermal is a Manufacturer's Representative, serving New England, for multiple leading manufacturers whose products offer a systems approach to comfortable heating and cooling. We provide technical and sales support to our wholesale distributor partners and contractors. For homeowners, we provide geographic lists of installing and servicing contractors to help them find the "best fit" for the project to be done.

Over the twenty year history of the company, we have been involved with thousands of successful projects where contractors sold better equipment, consumers saved dramatic amounts of energy, and solutions were offered that provided the highest levels of comfort.


LG HVAC
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LG HVAC

A duct-free system, also known as a “split” air conditioner system, is made up of or includes two units: an indoor unit to deliver conditioned air to the room...
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RenewAire
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RenewAire

RenewAire has been the innovator and leader in energy efficient residential ventilation since 1993. With the aerodynamically engineered...
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ZoneFirst
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ZoneFirst

ZoneFirst, previously Zone-A-Trol, is synonymous with hydronic zoning dating back to the 1950′s, inventing the original motorized dampers and...
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