Instinct Solo 199-184,000 BTU Output Direct Vent Hot Water Gas Boiler (NG)

The Triangle Tube brand has been discontinued by the manufacturer as of 11/3/2025. Suggested replacement units will be available on our website and replacement parts will continue to be available as supplies last. If you'd like any further assistance, please contact our customer service team.

Rebates:
This product qualifies for a federal tax rebate of up to $600. Federal Rebate click for more info

In addition to the federal rebate, you may also be eligible for rebates from your local utility company and state. Search your region and state in the link below for information about local rebate programs that may apply to you. Triangle Tube Rebate Center

Triangle Tube is best known for feats of hydronic innovation and incredibly efficient products. The Triangle Tube Instinct is a high-efficiency condensing boiler featuring a fire tube heat exchanger and a market-leading warranty program. The Instinct includes Triangle Tube's CTRLMax Control System for a 60-second setup and simple, plain text operation. An included universal 3-in-1 vent adapter directly accepts PVC, Polypropylene and stainless steel. Available in both solo and combi models, the Instinct boiler is the perfect solution for highly efficient instant or indirect water heating.