What Carlin Combustion Technology does

Carlin Combustion Technology is a privately held, North Haven, Connecticut-based manufacturer founded in 1949 that designs and produces combustion equipment for residential, commercial, and OEM heating applications. Its product portfolio spans oil burners (EZ-1/2/3, Carlin Select, 99FRD through 1150FFD), gas burners (EZGas Pro, 201GAS-801GAS), dual-fuel burners (702GO, 801GO), and complementary controls and components including the Pro-X 70200 microprocessor oil primary control, Pro-X 45000 universal ignitor, EZ Temp thermostats, PSC and commercial motors, and the patented CAP System for NFPA-31 combustion air compliance. The B100 residential burner line, UL Listed for up to 100% biodiesel since November 2023, positions Carlin in the renewable-fuel segment of oilheat. The company operates under Cowles Operating Company and is not publicly traded.

Revenue is generated primarily through hardware sales via a multi-tier distribution model: factory territory representatives in New England, Metro New York, and Mid-Atlantic; regional sales representatives covering US states and Canada; international distributors; online distributors Supply House and Patriot Supply; and an OEM channel of 60+ heating-equipment manufacturers including Bradford White, Viessmann, Weil-McLain, Rheem, Bryan Steam, Slant Fin, and Burnham. Pricing is not publicly disclosed. The company also sells directly to technicians and homeowners through its website, customer service line, and the Carlin Connect Bluetooth mobile app, and supports adoption through Carlin U training courses that award NORA and NATE CEUs. Carlin's technology moats rest on proprietary combustion head design, two US patents (11,428,407; 11,879,640) covering the CAP System, UL/NFPA certifications, and the diagnostic infrastructure around the Pro-X control platform.

Name

Carlin Combustion Technology

Legal name

Carlin Combustion Technology

Website

https://carlincombustion.com

Company type

Private

Founded year

1949

Operating status

Operating

Headcount range

101–250 employees

Short description

Carlin Combustion Technology, founded 1949 and based in North Haven, Connecticut, manufactures oil, gas, and dual-fuel burners plus combustion controls and ignitors for residential, commercial, and OEM heating applications across North America, with a B100 biofuel line and patented CAP System.

Ownership category

akta.pro rank

Headquarters

HQ city

North Haven

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Burner Sales: Carlin generates revenue through the sale of combustion equipment including oil burners, gas burners, dual-fuel burners, and associated components and accessories.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Carlin Combustion Technology manufactures oil, gas, and dual-fuel burners along with combustion controls, ignitors, and components for residential and commercial heating applications. The portfolio spans the EZ Series and Carlin Select residential burners, 99FRD through 1150FFD commercial oil burners with step-modulating efficiency, the EZGas Pro and 201GAS–801GAS gas burner lines, 702GO/801GO dual-fuel burners, the Pro-X 70200 programmable control and Pro-X 45000 ignitor, and accessories including the patented CAP System combustion-air prover and Carlin Connect Bluetooth diagnostics app. Carlin sells to OEM heating-equipment manufacturers, distributors, technicians, and homeowners across the U.S. and Canada, with products UL Listed for both markets and residential burners UL Listed for B100 biofuel manufactured after November 20, 2023.

Product overview

Carlin Combustion Technology is a manufacturer of heating equipment, primarily oil and gas burners for residential and commercial applications. The product portfolio centers on three main burner categories: Oil & Biofuel Burners (EZ Series, Carlin Select, 99FRD, 102CRD, 201CRD, 301CRD, 601CRD, 701CRD, 702CRD, 801CRD, 1050FFD, 1150FFD), Gas Burners (EZGas Pro, 201GAS through 801GAS), and Dual Fuel Burners (702GO, 801GO for oil/gas combinations). Supporting the burner line are complementary products including Pro-X 70200 programmable oil primary controls, Pro-X 45000 universal ignitors, temperature controls, motors, and the CAP System combustion air proving accessory. The Carlin Connect Bluetooth app enables mobile diagnostics for the Pro-X 70200 control. The company emphasizes B100 biofuel compatibility across residential burners and provides training through Carlin U. All products are UL Listed for US and Canada markets.

Differentiator

Problem solved

Functional benefit

Brands

• Carlin Connect: Bluetooth app for Pro-X 70200 control, providing real-time control readings, fault history, and diagnostic features.
• CAP System
• Carlin U

Products and services

• EZ Series Burner (EZ-1, EZ-2, EZ-3) Residential oil burners combining state-of-the-art components with proven range and reliability across three configurations (EZ-1, EZ-2, EZ-3); designed for simplified setup and servicing in residential applications.
• Carlin Select Burner Premium residential oil burner with adjustable head for 3-pass boilers and demanding applications; stainless-steel flame wrap provides heat retention, smooth light-offs, and quiet combustion.
• 99FRD & 102CRD Oil Burners Residential to semi-commercial oil burners with adjustable head assembly for fuel/air mixing, smooth light-offs, and quiet running; firing range 0.5 to 4.50 GPH.
• 201CRD & 301CRD Commercial Oil Burners Commercial oil burners with adjustable combustion head assembly for unmatched fuel/air mixing; 201CRD covers 2.5-5.0 GPH and 301CRD covers 3.0-7.0 GPH depending on air cone size.
• 601CRD Commercial Oil Burner Commercial oil burner with adjustable combustion head assembly, rated for 6.00 to 13.2 GPH with 2-stage fuel unit at 150 PSIG.
• 701CRD Modulating Commercial Oil Burner Advanced commercial oil burner with automatically-closed air damper and low-high-low step modulation (~2:1 turndown); low fire 3.6-6.6 GPH and high fire 6.00-13.00 GPH, delivering approximately 15-20% seasonal fuel savings versus single-stage designs.
• 702CRD Modulating Commercial Oil Burner Advanced commercial oil burner with automatically-closed air damper and low-high-low step modulation (~1.7:1 turndown); 2-stage dual-pressure fuel unit at 100/300 PSIG.
• 801CRD High-Capacity Modulating Commercial Oil Burner High-capacity commercial oil burner with automatically-closed air damper and low-high-low step modulation (~2:1 turndown); low fire 6.6-8.4 GPH and high fire 11.4-19.8 GPH with 3/4 HP motor.
• 1050FFD Commercial Oil Burner Commercial oil burner with flame-funnel combustion head design; low fire 9.00-12.00 GPH and high fire 15.00-25.00 GPH with ~2:1 turndown ratio.
• 1150FFD High-Capacity Commercial Oil Burner High-capacity commercial oil burner with flame-funnel combustion head design; low fire 12.00-15.00 GPH and high fire 20.00-35.00 GPH with 1.5 HP motor.
• Commercial Gas Burners (201GAS, 301GAS, 601GAS, 702GAS, 801GAS) Commercial gas burners in a range of capacities for industrial and commercial heating applications.
• EZGas Pro Residential Gas Burner Residential gas burner designed for conversion applications and compatible with Carlin's residential oil-burner platforms.
• 702GO Dual-Fuel Burner Advanced dual-fuel burner for #2 oil and natural gas/propane; oil 3.5-11.2 GPH and gas 490-1,600 MBH; uses Siemens damper actuator and upgraded components.
• 801GO Dual-Fuel Burner High-capacity dual-fuel burner; oil 10.4-17.0 GPH and gas 1,400-2,500 MBH; supports natural gas and propane.
• Pro-X 70200 Universal Oil Primary Control Programmable universal oil primary control with built-in LCD screen, alarm contacts, last-fault alert, and programmable features including Pre-Purge, Trial for Ignition, Post Purge, and Smart Ignition; UL Recognized in the U.S. and Canada.
• 60200FR Gas Primary Control Microprocessor flame-rod gas primary control for commercial and residential gas burner applications.
• Pro-X 45000 Universal Ignitor Carlin's most durable ignitor with 19kV output, tested through hundreds of thousands of on/off cycles; universal mounting fits virtually any burner brand. UL Recognized in the U.S. and Canada.
• EZ Temp Temperature Controls (90000, 90200, 90224, 90300, 90320) Temperature control products for residential and commercial heating applications.
• CAP System (Combustion Air Proving) Patent-protected combustion-air proving system (U.S. Patent Nos. 11,428,407 and 11,879,640) for residential oil burners that meets NFPA-31 Section 5.4.3.3 code requirements; monitors outside-air flow into the burner cover and safely shuts down the burner if air becomes blocked, reducing required confined space for combustion air by half.
• Carlin Connect Mobile App Bluetooth-enabled mobile app (iOS and Android) for the Pro-X 70200 control providing real-time control readings, detailed fault history log, control programming options, burner cycle logs, last-fault troubleshooting tips, OEM setup tables, installation literature, training videos, and one-touch dial to tech support.
• PSC Motors (Residential) Permanent Split Capacitor motors for residential oil and gas burners in 1/6 HP and 1/4 HP ratings.
• Commercial Motors Motors for commercial oil and gas burners available in 1/2 HP to 1-1/2 HP ratings in single- and three-phase configurations.
• B100 Biofuel-Ready Residential Oil Burners Residential oil-burner product line (EZ-1, EZ-2, EZ-3, Carlin Select, 99FRD, 102CRD) engineered and UL Listed for operation up to B100 (100% biodiesel) on units manufactured after 11/20/2023; features redesigned combustion head, B100-rated Suntec 3006 pump with integral valve, increased pump pressure for improved fuel atomization, and Pro-X 70200 control with Smart Ignition.
• Carlin U Training Program Education and training program offering NORA and NATE CEU-certified residential and commercial oil and gas training courses held in person from May through September, complemented by online training videos and digital resources.

Quantifiable outcome

• 15-20% seasonal fuel savings with modulating burners (701CRD, 702CRD, 801CRD) compared to single-stage flame retention burners
• +2 more outcomes

Named customers12 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

15 partnerships are on record, tiered core and minor.

• Bradford White CorporationcoreOEM/ Whitelabel/ Licensing PartnerBradford White Corporation is an OEM partner that integrates Carlin burners into their heating equipment products. They are one of the major manufacturers in the US boiler and water heating industry.
• Weil-McLaincoreOEM/ Whitelabel/ Licensing PartnerWeil-McLain is an OEM partner incorporating Carlin burners into their residential and commercial boiler products.
• ViessmanncoreOEM/ Whitelabel/ Licensing PartnerViessmann is an OEM partner using Carlin burners in their hydronic heating systems.
• Rheem ManufacturingcoreOEM/ Whitelabel/ Licensing PartnerRheem Manufacturing is an OEM partner incorporating Carlin burners into their heating equipment.
• Biasi-QHTcoreOEM/ Whitelabel/ Licensing PartnerBiasi-QHT is an OEM partner using Carlin burners in their boiler products.
• Burnham (U.S. Boiler)coreOEM/ Whitelabel/ Licensing PartnerBurnham (U.S. Boiler) is an OEM partner integrating Carlin burners into their heating equipment.
• New Yorker BoilercoreOEM/ Whitelabel/ Licensing PartnerNew Yorker Boiler is an OEM partner using Carlin burners in their residential and commercial boiler products.
• Bryan SteamcoreOEM/ Whitelabel/ Licensing PartnerBryan Steam is an OEM partner incorporating Carlin burners into their commercial heating equipment.
• Energy KineticscoreOEM/ Whitelabel/ Licensing PartnerEnergy Kinetics is an OEM partner using Carlin burners in their energy-efficient heating systems.
• Slant FincoreOEM/ Whitelabel/ Licensing PartnerSlant Fin is an OEM partner integrating Carlin burners into their hydronic heating products.
• Hydrotherm CorporationcoreOEM/ Whitelabel/ Licensing PartnerHydrotherm Corporation is an OEM partner using Carlin burners in their commercial and residential heating equipment.
• NORA (National Oil Heat Research Alliance)minorStrategic or Co-development PartnerCarlin participates in NORA programs and their training courses offer NORA CEUs. NORA provides best practice guides for biodiesel blends that Carlin references for B100 applications.
• Suntec (Fuel Pump Supplier)coreTechnology or IntegrationSuntec supplies the 3006 pump (with integral valve) and 7116 pump used in Carlin B100 burners. These are UL Listed B100-rated fuel pumps.
• Supply HouseminorChannel Partner/ Reseller/ DistributorOnline-only distributor partner for Carlin products.
• Patriot SupplyminorChannel Partner/ Reseller/ DistributorOnline-only distributor partner for Carlin products.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Riello Burners: Riello is a global Italian manufacturer of residential, commercial, and industrial oil and gas burners with overlapping capacity ranges (GPH ratings, modulating models) and similar OEM and channel-partner distribution models to Carlin.
• Beckett Corporation: Beckett is a US-based manufacturer of residential and light commercial oil burners and ignition controls, directly competing with Carlin in the same OEM channels and technician-installed aftermarket for oil-heat applications.
• Power Flame: Power Flame manufactures commercial and industrial burners for gas, oil, and combination fuels with capacities comparable to Carlin's 201CRD-1150FFD commercial product line, serving similar institutional and OEM customers.
• Weishaupt: Weishaupt is a German manufacturer of residential, commercial, and industrial burners for oil, gas, and dual-fuel applications, comparable to Carlin in dual-fuel product breadth and OEM-driven commercial-heating distribution.
• Eclipse (John Zink): Eclipse, part of John Zink, produces industrial combustion equipment including burners and air-heating burners for process and HVAC applications, addressing similar industrial and large-commercial customers as Carlin's high-end product range.
• Hydrolevel Company: Hydrolevel, co-located with Carlin under the Cowles Operating Company umbrella, manufactures low-water cutoffs and heating controls for residential and commercial boilers, operating as a direct sister peer in combustion-related controls.
• Webster Engineering & Manufacturing: Webster designs and builds industrial and commercial burners for boilers, process heaters, and direct-fired applications, overlapping with Carlin's higher-capacity 1050FFD and 1150FFD commercial burner offerings.

Broad incumbents

• Cleaver-Brooks: Cleaver-Brooks is a major boiler and burner manufacturer serving commercial and industrial customers, adjacent to Carlin's commercial burner business and overlapping in OEM-style packaged-heating solutions.
• Honeywell Thermal Solutions: Honeywell provides burner management controls, flame safeguards, and actuators (e.g., RM789C) used in combustion systems, overlapping with Carlin's Pro-X 70200 and 60200FR controls as a broader incumbent across many combustion categories.

Others

• Suntec (pump and component supplier): Suntec supplies the B100-rated 3006 and 7116 fuel pumps integrated into Carlin's biofuel burners; it is a critical upstream component supplier rather than a competitor, but its products directly enable Carlin's differentiated B100 offering.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/Carlin_CT
• Facebookfacebook.com/CarlinCombustionTechnology

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

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 Carlin Combustion Technology