

Instinct Combi Wall
The Instinct features an all stainless steel fire tube heat exchanger. Combi sizes are available in 155 and 199 MBH. CTRLMAX Control System-EZ Setup allows for a quick :60 second setup. Easy troubleshooting in plain text, no codes. 3-in-1 Universal vent adapter directly accepts PVC, Polypropylene stainless steel. The large plate heat exchanger provides industry leading performance. 5+ GPM hot water while fully condensing in DHW mode.

Warranty Info
At Triangle Tube, our goal is to deliver the highest quality products to customers throughout North America. As part of our continued commitment, we offer a Peace of Mind Industry-Leading Three Point (Good / Better / Best) Warranty Program. This program offers coverage up to 6-year parts and 3-year labor allowance and 10-year primary heat exchanger warranty. For details CLICK HERE.
Industry Certifications
Easy Install Manifold Now Available
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- Pre-assembled manifold
- Isolation ball valves for easy service
- Purge valves
- Dielectric unions
- Tapping for T&P Gauge
- 1” on primary (boiler)
- 1 1/4” on secondary (system)
- Fits Combi boilers only
Features and Benefits
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Peace of Mind Industry-Leading Three Point (Good / Better / Best) Warranty Program
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Stainless Steel Fire Tube Heat Exchanger
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Industry Leading Performance with 5+ GPM Hot Water while Fully Condensing
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Turndown ratio up to 8:1
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Efficiency Rating of 95%
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CTRLMAX Control System with 60 Second Set-up
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3 in 1 Universal Vent Adapter
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ASME Certified
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Natural Gas or Propane
Installation/User Manuals
Instinct WHB Installation & Maintenance Manual
Instinct WHB Installation & Maintenance Manual - French
Instinct WHB Application Guide AA or no letter in Serial No. after S or C
Instinct WHB Application Guide AB in Serial No. after S or C; Software 0.36 / 0.60 or earlier
Instinct WHB Application Guide AB in Serial No. after S or C; Software 0.39 / 0.62 or later
Instinct WHB Application Guide AB in Serial No. after S or C; Software 0.40 or later
Instinct WHB & FSB User’s Information Manual
Instinct WHB & FSB User's Information Manual - French
Engineering Bulletins
Repair Manuals
Instinct Natural Gas to Propane Conversion Instructions
Instinct Propane to Natural Gas Conversion Instructions
Instinct Blower Replacement
Instinct Gas Valve Replacement
Instinct Venturi Replacement Kit
Instinct Circulator Replacement
Instinct Control & Display Module Replacement
Instinct Display Module Replacement
Instinct Igniter Replacement
Instinct Temperature Sensor Replacement
Instinct Combustion Chamber Insulation Replacement
Instinct Burner Head Replacement
Instinct Hydroblock Replacement
Instinct Burner Mounting Plate Replacement
Instinct 3Way Valve Motor Replacement
Instinct 3Way Valve Replacement
Instinct Venturi Interface Replacement Kit
Instinct LWCO Sensor Replacement
Instinct Flow Sensor Replacement
Instinct Heat Exchanger Replacement
Instinct Condensate Pan Replacement
Instinct LP Update Kit
Introducing the Instinct
Learn more about Triangle Tube’s new high-efficiency condensing boiler, the Instinct.
Instinct No-Fault Forward Production
Watch and see how Triangle Tube’s high-efficiency boiler is produced with a “No-Fault Forward” quality control.
Product Comparison
Model | Fuel | Input Modulation (mbh) | Turndown | AFUE | DOE Heating Capacity (mbh) | Net AHRI Rating (mbh) | DHW Flow Rate 70F (gpm) |
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Instinct 155 | NG/LP | 19 to 155 | 8 : 1 | 95% | 142 | 123 | 4.0 |
Instinct 199 | NG/LP | 24 to 199 | 8 : 1 | 95% | 184 | 159 | 5.3 |
Prestige Excellence | NG/LP | 20 to 110 | 5.5 : 1 | 95% | 102 | 89 | 3.0 |