NTI Boilers

What NTI Boilers does

NTI Boilers, operating as NY Thermal Inc., is a Canadian manufacturer of high-efficiency hydronic heating and hot water equipment headquartered in Saint John, New Brunswick. Founded in 1967, the company designs and produces condensing boilers, water heaters, combi furnaces, and — as of its 2025 Verta Series launch — heat pumps, serving residential and light-commercial end markets in the United States and Canada. Its core technology centers on high-efficiency condensing heat exchangers and wall-hung hydronic platforms, with products engineered for direct-vent combustion and compatibility with modern low-temperature distribution systems.

NTI sells exclusively through a distributor network spanning the U.S. and Canada, with no direct-to-consumer or direct-to-contractor channel disclosed. The company employs roughly 51-100 people, concentrated at its Saint John facility. Pricing follows standard OEM equipment-margin models on skus across its boiler, water-heater, and emerging heat pump lines, with service and technical support delivered through its North American Heating Tech Support Call Center established in late 2025.

Since September 2016, NTI has operated as a wholly-owned subsidiary of Italy-based Ariston Thermo Group (now Ariston Group), a global heating and hot water conglomerate. Under Ariston ownership, NTI has functioned as the North American commercial platform, with product cadence accelerating across the 2021-2025 window (S20W water heater, TFTN boiler series, Laylan Hydronics partnership, Verta heat pump) and infrastructure investments that suggest a strategic alignment with Ariston's broader electrification roadmap.

Name

NTI Boilers

Legal name

Ariston Canada Inc.

Website

https://ntiboilers.com

Company type

Private

Founded year

1967

Operating status

Operating

Headcount range

51–100 employees

Short description

NTI Boilers is a Canadian manufacturer of high-efficiency condensing boilers, water heaters, combi furnaces, and heat pumps, serving residential and light-commercial markets across the United States and Canada through an exclusive distributor network.

Ownership category

akta.pro rank

Product category

Hydronic Heating Equipment

NAICS

Heating Equipment (except Warm Air Furnaces) Manufacturing (333414), Power Boiler and Heat Exchanger Manufacturing (33241)

SIC

Heating Equipment, Except Electric & Warm Air Furnaces (3433)

akta.pro primary industry

Boilers, Furnaces & Process Heating Equipment (IMAHAKAD)

akta.pro secondary industry

Industrial Boilers, HRSGs & Steam Generators (IMAHAFAF)

Keywords

• Condensing boilers
• Hydronic heating equipment
• Water heaters
• Heat pumps
• HVAC equipment

Headquarters

HQ city

Saint John

HQ country

Canada

HQ region

North America

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Technology or R&D

Revenue model

1. Boiler and Water Heater Sales: Primary revenue from manufacturing and selling high-efficiency condensing boilers, water heaters, and combi furnaces for residential and commercial applications. Products sold through distributor network.
2. Training Services: In-person live-fire training at facilities in New Bedford MA and Saint John NB, plus online 'Thirsty for Knowledge Thursday' webinars for contractor continuing education
3. Parts and Accessories: Replacement parts, floor stands, zone controls, BMS gateways, and other accessories sold through distributor network

Go-to-market motion3 records

Distribution channels1 record

Marketing channels5 records

Core offering

NTI Boilers manufactures high-efficiency condensing boilers, water heaters, combi furnaces, and air-to-water heat pumps for residential and commercial hydronic heating applications. Products feature proprietary fire tube and water tube stainless steel heat exchangers, Wi-Fi connectivity (NTI NET), touchscreen controls, and BACnet building management integration. The company sells exclusively through an independent wholesale distributor network across North America, supported by live-fire training facilities and contractor education programs.

Product overview

NTI Boilers is a manufacturer of home heating equipment offering a comprehensive portfolio of residential and commercial heating products. The product line includes gas boilers (TFTN Series, FTVN Series II, TRX Series II, NTI Compass Series, Lx Series), water heaters (S20W Series, Lx-WH Series, Trin & Stor storage tanks), heat pumps (Verta Series air-to-water), and commercial boilers (FTG Series fire tube, Caprice oil boiler, Pool-Ex). Accessories include zone controls (N-Link), building management system integration (BMS Gateway BACnet), floor stands, and heat exchanger cleaning tools. Products feature smart technology with Wi-Fi connectivity and touchscreen interfaces. The company is part of Ariston Group.

Differentiator

Problem solved

Functional benefit

Products and services

• TFTN Series Boiler Fire tube boiler with 7-inch color touchscreen display, onboard WiFi capability, and EZ Set Up Wizard for residential and light commercial hydronic applications. Features stainless steel heat exchanger, integrated three zone controller, and 2-3 inch venting options. Available in sizes 85-850 MBH.
• FTVN Series II Gas boiler featuring advanced user interface with Easy Setup Wizard, simpler wiring with improved junction box, combination and heat-only versions available, and fire tube heat exchanger for residential applications.
• TRX Series II Water tube heat exchanger boiler for residential applications with improved performance and efficiency over previous generation, featuring advanced user interface and exclusive NTI NET Wi-Fi connectivity.
• NTI Compass Series Floor mount boiler with left- or right-hand reversible connections, primary/secondary piping, flexible installation, convenient accessibility, and optimal efficiency. Features exclusive NTI NET Wi-Fi connectivity.
• Lx Series Residential and light commercial gas boiler series with stainless steel heat exchanger, touch screen display, and advanced programming features for hydronic heating applications.
• S20W Series Wall-Mounted Indirect Water Heater Ultra-high performance wall-mounted indirect water heater with 20-gallon capacity, 445 GPH first-hour recovery rate, 444 stainless-steel coil and tank, and unprecedented installation flexibility for limited-space installations.
• Lx-WH Series High efficiency water heater combining quality with unmatched efficiency. Features stainless steel heat exchanger, floor or wall-mount options, high power sizes up to 800 MBH, and ideal coupling with Trin & Stor storage tanks.
• Trin & Stor Passivated steel storage tanks renowned for maximum corrosion resistance and longevity. Available in sizes from 40 to 120 gallons with stainless steel construction and expanded polyurethane foam insulation.
• Verta Series Air-to-Water Hydronic Heat Pump Monoblock air-to-water heat pump with R32 refrigerant delivering high water temperatures in low ambient conditions down to -13°F. Features 7-inch touchscreen interface, auto heat/cool switch, and heating, cooling, and domestic hot water capabilities for single-family homes and apartments.
• FTG Series Commercial Boiler Stainless steel high efficiency fire tube commercial boiler ranging from 800 MBH to 2,350 MBH. Features dynamic multiple heat exchanger design, single blower, gas valve and burner, touch screen display, CSD-1 compliance, and sealed cabinet. Delivers up to 96.1% thermal efficiency.
• Caprice Oil Boiler Trusted steel oil boiler for over 50 years with high efficiency operation up to 86.9% AFUE. Features high-capacity copper coil, outdoor reset, warm weather shutdown, domestic hot water priority, direct vent option, and compact size. CRN approved.
• Pool-Ex Pool, spa, and hot tub heating solution with outputs from 35 to 500 MBH. Features high quality stainless steel construction, economical heating, and ASME design. Not for saltwater applications.
• NTI BMS Gateway BACnet Building management system interface providing communication between NTI TFTN series boilers (up to 8 boilers via Cascade) and BACnet protocol-based building management systems. Part # 3260186.
• N-Link Zone Control 3-Zone Control Module designed to connect to TFTN series boilers, enabling control of up to 3 additional heating zones (6 total with integrated controls). Communicates with boiler HMI for full control of each zone's individual parameters. Part # 3260184.

Quantifiable outcome

• FTG Series delivers up to 96.1% thermal efficiency
• +2 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature7 records

Partnerships

Six partnerships are on record, tiered minor and core.

• Saint John Sea DogsminorGTM or Marketing Partner · 1 October 2025Partnership with the Saint John Sea Dogs hockey team. Players visited the Ariston Canada/NTI manufacturing facility, participated in meet and greet, facility tour, and memorabilia exchange. Includes co-branded merchandise and BBQ lunch as part of community engagement.
• Laylan HydronicscoreChannel Partner/ Reseller/ Distributor · 1 January 2023Strategic partnership for Ontario, Canada bringing together NTI's product offering with Laylan's customer-centric leadership. Laylan focuses on contractors first, offering high-quality products and services that help contractors find the right solutions for project success. Mathew Pottins, founder, has over a decade of HVAC industry experience.
• Seeing Double Sled Dog Racing (Kristy and Anna Berington)minorGTM or Marketing Partner · 1 January 2023NTI sponsors the Seeing Double Sled Dog Racing team for the Iditarod sled dog race, known as 'The Last Great Race On Earth'. This is NTI's second year sponsoring the team, celebrating Alaskan lifestyle and the importance of staying warm.
• Wales-DarbycoreChannel Partner/ Reseller/ Distributor · 1 November 2018Manufacturer representative appointed for northern New Jersey, New York City, and Long Island areas. Wales-Darby is a hydronics-focused agency with over 70 employees, two offices (Warren NJ and Islandia NY), large warehouses and training facilities. They provide sales, engineering, and service teams calling on wholesalers, contractors, and engineers.
• Osborne CompanyminorChannel Partner/ Reseller/ Distributor · 1 April 2018Appointed as manufacturer representative for Northern California region in April 2018 as part of strategic expansion of US sales organization.
• HTP (Heating Tool Products)minorStrategic or Co-development Partner · 1 July 2017Ariston Thermo acquired controlling interest in HTP of New Bedford, Massachusetts in July 2017. HTP and NTI continue to operate independently on the market.

Scale indicators3 records

Recent moves7 records

Expansion highlights4 records

Direct peers

• HTP (Heat Tool Products): Sister company under Ariston Group (acquired 2017) offering high-efficiency condensing boilers and water heaters from New Bedford, MA. Operates independently from NTI but with overlapping product categories, similar hydronic focus, and shared Ariston corporate backing.
• Navien: Manufacturer of high-efficiency condensing tankless water heaters and combi-boilers serving residential and light commercial markets in North America. Competes directly with NTI's residential boiler and water heater lines through a similar wholesale distribution model.
• Lochinvar: Leading US manufacturer of high-efficiency condensing boilers, water heaters, and commercial heating systems (Knight, FTXL, FTXL Fortress series). Direct competitor in commercial and residential boiler segments with overlapping distributor relationships.
• Bosch Thermotechnology: Global manufacturer of residential and commercial boilers, heat pumps, and water heaters. Direct competitor across NTI's core product categories with deeper R&D resources and broader geographic reach.
• Viessmann: German-headquartered manufacturer of high-efficiency condensing boilers, heat pumps, and hydronic heating systems. Competes with NTI in the residential and commercial hydronic segment, particularly in the premium efficiency tier.
• Burnham Holdings: US-based boiler manufacturer (parent of Burnham, Weil-McLain, Crown Boiler) producing cast-iron and condensing boilers for residential and commercial markets. Overlaps with NTI's traditional boiler and commercial product lines.
• Rinnai: Manufacturer of tankless water heaters, boilers, and direct-vent heating products. Competes with NTI in the residential water heating and combi-boiler categories with strong brand recognition in North America.
• Bradford White: US manufacturer of residential and commercial water heaters (gas, electric, tankless, heat pump). Comparable to NTI's water heater business through overlapping wholesale distribution channels and similar commercial/residential customer base.
• Weil-McLain: Established US manufacturer of hydronic heating boilers for residential and commercial applications (a Burnham Holdings subsidiary). Direct competitor to NTI's commercial FTG and residential boiler lines with strong hydronic trade relationships.

Regional players

• Worcester Bosch: UK-based boiler manufacturer (part of Bosch) producing gas-fired condensing boilers and heating controls. Operates primarily in the UK/European market but is comparable to NTI in product technology and premium efficiency positioning.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@NTITraining
• Facebookfacebook.com/ntiboilers
• LinkedInlinkedin.com/company/nti
• Instagraminstagram.com/ntiboilers
• Xx.com/ntiboilers

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about NTI Boilers