Triangle Tube has ceased operations as of November 3, 2025. Web page is provided for reference only. Parts are limited in stock, as such we can provided limited service, including the 2025 recall.
Triangle Tube Boilers
ductless.ca Inc. is proud to supply, install and service Triangle Tube
Residential & Commercial Boilers
Tank-in-tank Combi Boiler Design
Triangle Tube has been manufacturing energy efficient boilers and combi boilers for over 70 years.
Their core technology is a “tank-in-tank” combi boiler design, a name coined by Triangle Tube at the beginning of the 1980’s to describe a new type of indirect water heater that is capable of operating at high temperatures and withstanding the negative impact of liming while achieving efficiencies of up to 90.0%† AFUE!
ductless.ca Inc. is pleased to announce that we sell and install Triangle Tube’s full range of residential and commercial boilers including the Instinct, Prestige and Challenger Series in both solo and combi configurations.
Why Choose Ductless.ca Inc. To Install Your Triangle Tube Boiler?
Professional Services Offered
ductless.ca Inc. is your go-to provider for professional and reliable installation of Triangle Tube Boilers.
Our team of certified technicians have years of experience and are dedicated to ensuring that your boiler is installed safely and efficiently.
Our expertise with hydronic heating technology ensures that we will properly size your Triangle Tube boiler for your specific needs, maximizing your heating efficiency and reducing your energy costs.
Quality, Safety, and Customer Satisfaction
Our commitment to quality, safety, and customer satisfaction means that you can trust us to provide the best service possible.
We offer a no obligation in-home estimates and a comprehensive 10-year factory heat exchanger, 5-year parts and 2-year labour warranties.
Choosing ductless.ca Inc. for your boiler in the Toronto, GTA and Georgian Bay area is the smart choice.
Residential Triangle Tube Boilers Offered
Triangle Tube Instinct Boilers
The Triangle Tube Instinct boilers are available in Solo (space heating) or combi configurations. Each boiler is manufactured using Triangle Tube’s No-Fault Forward production system where products receive over 200 quality checks before they even leave the factory. Every Triangle Tube Instinct boiler is fully condensing! Rated inputs from 13,000 to 199,000 Btu/h (3.8 to 58.3 kW).
The Future Of High-efficiency Condensing Boilers
Features at a glance:
Features at a glance:
- Triangle Tube’s stainless steel fire tube heat exchanger,
- Outstanding efficiency of 95% AFUE on all Instinct models,
- The Combi models can provide up to 5 gpm of domestic hot water while fully condensing,
- While the Solo boilers can provide endless on demand domestic hot water when combined with the Smart 316 indirect hot water tank,
- Turndown ratio of 8:1,
- CTRLMAX control system with only a 60 s start-up, easy set-up and plain language error readouts,
- 3 in 1 universal vent adapter that directly accepts PVC,
- ASME certified,
- Warranty:
Heat Exchanger: 10 Years
Parts: 5 Years
Labour: 2 Years
External Triangle Tube Links: Triangle Tube Instinct Solo and the Triangle Tube Instinct Combi
Models and specifications
Triangle Tube Prestige Boilers
The Triangle Tube Prestige flagship boilers are available in Solo (space heating) or Excellence (combi) configurations. Each boiler is manufactured using Triangle Tube’s No-Fault Forward production system where products receive over 200 quality checks before they even leave the factory. Every Triangle Tube Prestige Series boiler is fully condensing. Rated inputs from 16,000 to 399,000 Btu/h (3.8 to 58.3 kW).
14 Gallon Indirect Fired Water Heater
Features at a glance:
Features at a glance:
- Triangle Tube’s 439 stainless steel fire tube heat exchanger,
- Outstanding efficiency of 95% AFUE on all Instinct models,
- The Excellence models feature a tank-within-a-tank technology and can provide up to 3 gpm of domestic hot water while fully condensing,
- While the Solo boilers can provide endless on demand domestic hot water when combined with the Smart 316 indirect hot water tank,
- Turndown ratio of 5.5:1,
- CTRLMax control panel,
- Integrated cascade function for up to 6 boilers,
- 3 in 1 universal vent adapter that directly accepts PVC,
- Multiple zone control,
- ASME and Energy Star certified,
- Warranty:
Heat Exchanger: 10 Years
Parts: 5 Years
Labour: 2 Years
External Triangle Tube Links: Triangle Tube Prestige Solo and the Triangle Tube Prestige Excellence
Models and specifications
Triangle Tube Challenger Boilers (Discontinued)
The Triangle Tube Challenger boilers were available in Solo (space heating) or Combi configurations.
Please note that the Challenger series have been replaced by the Prestige or Instinct Series and are no longer available.
External Triangle Tube Links: Triangle Tube Challenger Solo and the Triangle Tube Challenger Combi
