RST Thermal

Come talk Unico with RST Thermal!

We’ll be joining BellSimons at their upcoming Contractor Tradeshow & Vendor Expo, with The Unico System on display.

Stop by the RST Thermal booth to learn more about Unico’s small-duct, high-velocity HVAC solutions, ask questions, and see how the system can fit into your next project.

📍 DoubleTree by Hilton | Portland, ME
📅 September 30 | 8 AM–5 PM

We look forward to seeing everyone there!

What if you could start troubleshooting a geothermal system before you even arrived on site?

Enertech’s EPIC Connected Controls give contractors remote access to real-time system performance, diagnostics, alerts, and historical data through myUplink Pro.

With better visibility into what’s happening, contractors can diagnose issues faster, prepare for service calls, and even catch potential problems before the homeowner knows there’s an issue.

Smarter monitoring. Better diagnostics. More proactive service.

Contact RST Thermal to learn more about Enertech EPIC Connected Controls.

Not every commercial zoning job needs a complicated controls package.

ZoneX is built for the jobs that fall in between — small commercial rooftop systems, VVT / VariTrac-style zoning, obsolete OEM controls, and retrofit applications where contractors need something simpler and easier to install.

With contractor-installed systems, fast quoting, retrofit-friendly options, no monthly fees, and strong technical support, ZoneX gives contractors a practical alternative to costly, complex OEM controls.

Whether you’re dealing with an older Carrier, Trane, or York zoning system or looking for a better approach on a new small commercial project, reach out to RST Thermal to talk through the ZoneX options.

RenewAire has been busy!

Several new products, options, and technical upgrades are now available across the RenewAire lineup, including:

→ Electric Preheat for HE07, HE10, HE15 & HE20 ERVs — factory-installed to help maintain continuous balanced ventilation in extreme cold
→ EV Premium+ Series Expansion for larger residential and light commercial applications
→ Evergreen™ SH Three-Duct ERV — a compact 25–130 CFM solution designed for tight residential spaces
→ New A2L Refrigerant Leak Detection Sensor for R454B and R32 applications
→ Upgraded IPC controls and accessory documentation to make system design, wiring, and submittals easier

From simplifying installation to improving cold-climate performance and helping meet evolving code requirements, there are some useful additions here for contractors and specifiers.

Reach out to RST Thermal to learn more about what’s new from RenewAire and which options fit your next project.

Fresh air without the cold draft.

The Thermolec Thermo-Air gives you a simple way to preheat incoming fresh air before it reaches the occupied space. Its built-in airflow sensor and modulating controller automatically adjust heating output to match airflow, helping deliver consistent comfort without unnecessary energy use.

Available from 1–12 kW for 5"–12" round ducts.

Contact your RST Thermal rep to spec the right Thermo-Air for your next project.

Copper pricing has climbed roughly 45% in the last year — and about 75% over the past three years.

With copper costs continuing to rise, now is a good time to take another look at FastPipe.

FastPipe gives contractors an alternative to traditional copper piping that's designed for quicker, easier installation — and as the cost gap changes, the case for making the switch gets even stronger.

FastPipe: Quicker • Easier • Steadier

Thinking about making the switch? Reach out to RST Thermal to learn more about FastPipe and where it could fit into your next project.

We're looking forward to joining our industry partners at the MAPHCC Charity Golf Outing next Monday! ⛳

It's always a great opportunity to connect with everyone from across the HVAC industry while supporting several outstanding charitable organizations, including:

• Noah Geaney Foundation
• UTC Hopefuls – Yarmouthport
• Nam Knights
• 5 Gallon Challenge
• Wampatuck Veterans

Be sure to stop by the raffle area to see what Mr. PEX has cooking. You might just head home with a new Blackstone Griddle!

We look forward to seeing everyone at Foxborough Country Club on Monday, August 3rd!

This video from five years ago about the Thermolec Mini Make-Up Air Unit and why makeup air is becoming a bigger part of residential HVAC design still holds up today.

As homes continue to get tighter and ventilation requirements become more common, having the right makeup air strategy matters more than ever.

From compact residential solutions like the Mini Make-Up Air Unit to larger commercial makeup air systems, Thermolec offers a range of options designed to help meet ventilation requirements while maintaining comfort.

Reach out to RST Thermal to learn more about Thermolec makeup air solutions.

Thermolec Mini Makeup Air Make up air has become a huge part of a home's mechanical system si...