Viessmann Airflow Plus Now Launched in USA

The Viessmann AirflowPLUS works directly with a Viessmann boiler to provide perfectly conditioned air for any home or small commercial building all year round.


Featuring a fully insulated cabinet, top-quality ECM fan blower, wide modulation range, operating and diagnostic LED display and integrated control sensors, the Viessmann AirflowPLUS is ideal for both retrofit and new construction applications.

Check out the full documentation on Viessmann's website

March 13, 2019

TFT Mandatory Flue Grommet Replacement

Mandatory Flue Grommet replacement on all TFT Boilers (excluding TFT-154) 


NTI Boilers is directly providing recall upgrade kits to all installers, 1 kit per registered TFT boiler installed. If technicians have not received these upgrade kits directly by mail, please contact Thermal Products and we will provide you with the required material as well as a list of all boiler serial #s purchased from Thermal Products.

If you need more information contact us directly by phone or through the E-mail provided on our Contact page.

NTI has provided a full video guide to the entire upgrade procedure Here

April 27, 2018


Our new site is live. We will post all products news and announcements as they arise on this page. Please check back soon.

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Thermal Products Inc. Seattle, WA 98133

(206) 363-4328

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