Heat Transfer Technologies

What Heat Transfer Technologies does

Heat Transfer Technologies LLC (HTT) is a privately held engineering consultancy founded in 2008 by Yoram Shabtay in Prospect Heights, Illinois. The firm specializes in the design, prototyping, and manufacturing consulting of advanced heat exchangers, with particular depth in microchannel tube technology (including a first-of-its-kind extruded copper microchannel condenser), serpentine-tube aluminum heat exchangers with minimized brazed joints for flammable and natural refrigerants, small-diameter (3-5mm) copper tube designs, and thermal energy storage devices such as hydrogel-based thermo-adsorptive systems exceeding 200 kWh/m3 and PCM-embedded heat exchangers. HTT operates two nitrogen-atmosphere brazing furnaces and conducts pressure/temperature cycle testing for prototype evaluation.

The company monetizes through project-based B2B consulting engagements, prototype brazing services, and sub-awards from US Department of Energy research programs (at least six awards between 2017 and 2024). It serves HVAC and appliance manufacturers (Rheem, Sub-Zero, Brazeway, Virtus Precision Tubes), automotive and EV thermal management buyers, robotics manufacturers, and emerging data center cooling applications, with co-development partners including MIT, University of Maryland, Oak Ridge National Laboratory, the International Copper Association, and a long-standing testing laboratory relationship with Optimized Thermal Systems R&D since 2008. HTT employs 1-10 people and maintains a single location in Prospect Heights, IL with no disclosed revenue or external funding.

Name

Heat Transfer Technologies

Legal name

Heat Transfer Technologies LLC

Website

https://heattransfertechnologies.com

Company type

Private

Founded year

2008

Operating status

Operating

Headcount range

1–10 employees

Short description

Heat Transfer Technologies LLC is a Prospect Heights, Illinois engineering consultancy founded in 2008 that designs, prototypes, and tests advanced heat exchangers for HVAC, appliance, automotive, robotics, and data center cooling customers, supported by US Department of Energy research partnerships.

Ownership category

akta.pro rank

Product category

Thermal Engineering Consulting

NAICS

Power Boiler and Heat Exchanger Manufacturing (33241), Power Boiler and Heat Exchanger Manufacturing (332410), Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Industrial Process Furnace and Oven Manufacturing (333994)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Heating Equipment, Except Electric & Warm Air Furnaces (3433), Industrial Process Furnaces & Ovens (3567)

akta.pro primary industry

Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC)

akta.pro secondary industries

Heat Exchangers & Thermal Transfer Equipment (IMAHAKAC), Industrial Process Heat TES (Steam, Kilns, Furnaces, Waste-Heat Coupling) (EUAFANAI), Boilers, Furnaces & Process Heating Equipment (IMAHAKAD)

Keywords

• Heat exchanger design
• Thermal engineering consulting
• Brazing services
• Microchannel tube prototyping
• Thermal energy storage

Headquarters

HQ city

Prospect Heights

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting Services: Consulting services for heat exchanger design, prototyping, testing and manufacturing solutions. Revenue generated through project-based consulting engagements with clients requiring specialized thermal engineering expertise.
2. Brazing Services: Professional quality brazing services for aluminum and copper components using nitrogen atmosphere furnaces. Provides prototyping and development work capabilities.
3. DOE Funded Research Partnerships: Participates in US Department of Energy research awards as a project member, contributing to development of next-generation thermal technologies.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Heat Transfer Technologies LLC is an engineering consulting firm that designs, prototypes, and tests novel heat exchangers for industrial clients. The company also provides specialized nitrogen-atmosphere brazing services for aluminum and copper components and develops proprietary heat exchanger products including microchannel condensers, serpentine tube designs, and thermal energy storage devices.

Product overview

Heat Transfer Technologies LLC (HTT) is an engineering services and product company specializing in the development of novel heat exchangers. Founded in 2008, the company offers a portfolio of engineering consulting services including Design & Prototyping, Manufacturing Consulting, Cost Analysis, and Market Analysis, along with specialized services such as brazing (using Nitrogen atmosphere furnaces) and part performance evaluation. HTT also manufactures specific heat exchanger products including Extruded Copper Microchannel-Tube Condensers, Thermal Energy Storage (TES) Devices, Serpentine Tube Heat Exchangers, and Small Diameter Copper Tube Heat Exchangers. The company has developed technology for US Department of Energy projects and works with partners including universities, national labs, and industry associations to create cutting-edge thermal solutions.

Differentiator

Problem solved

Functional benefit

Products and services

• Heat Transfer Solutions Consulting Expert consulting for efficient heat transfer systems and applications tailored to customer needs.
• Design and Prototyping Services Innovative designs and prototypes tailored to meet specific heat transfer needs and requirements, including prototyping and testing capabilities for heat exchangers.
• Manufacturing Consulting Guidance on manufacturing processes to optimize efficiency and quality in heat exchanger production, utilizing mesh-belt continuous brazing furnaces.
• Cost Analysis Guidance on production cost, ROI, Payback time, and CAPEX for heat transfer solutions.
• Market Analysis Analysis of addressable market, competitive positioning, and value proposition development for thermal solutions.
• Brazing Services Professional quality brazing for unique components using nitrogen atmosphere brazing furnaces, working with aluminum and copper materials. Maximum work envelope: 508mm x 254mm x 76mm (20 x 10 x 3 inches).
• Braze Joint Analysis In-depth analysis of parts to confirm joint quality or identify areas for improvement in brazed components.
• Part Performance Evaluation Evaluation of parts using pressure and temperature cycle tests, with each evaluation designed to fit the specific application requirements.
• Extruded Copper Microchannel-Tube Condenser First-of-its-kind extruded microchannel copper tube developed for special applications requiring extra corrosion resistance while maintaining high performance.
• Thermal Energy Storage (TES) Device Thermal energy storage device that, in combination with a heat pump, can significantly reduce peak electricity demands while delivering savings in heating and cooling loads.
• Serpentine Tube Heat Exchanger Continuous serpentine-tube heat exchanger that reduces leak potential when used with flammable and natural refrigerants, using 7mm aluminum tubes brazed to dog-bone louvered fins.
• Small Diameter Copper Tube Heat Exchangers Heat exchangers developed with the International Copper Association and Copper Development Association, featuring 3mm, 4mm, and 5mm diameter copper tubes for high-efficiency air-conditioners, refrigerators, and data-center cooling. Enables use of flammable, natural, and low Global Warming Potential refrigerants.

Quantifiable outcome

• 30% less refrigerant amount, 25% less weight, 25% more compact in reduced charge heat exchangers
• +2 more outcomes

Named customers2 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

Feature8 records

Partnerships

Eleven partnerships are on record, tiered core, major and minor.

• Optimized Thermal Systems (OTS R&D)coreStrategic or Co-development Partner · 1 January 2008Long-standing partnership since 2008 on multiple projects. OTS R&D supports technology development and evaluation with an 8,000 square foot laboratory including environmental chambers and temperature-controlled wind tunnels. They provide software solutions CoilDesigner and VapCyc for component and system analysis, energy/emissions calculations, and optimized design solutions.
• University of MarylandcoreStrategic or Co-development PartnerAcademic partnership on multiple DOE-funded research projects including thermal energy storage, hybrid manufacturing for heat exchangers, and PCM embedded heat exchanger development.
• Massachusetts Institute of Technology (MIT)coreStrategic or Co-development PartnerResearch partnership on DOE-funded High Energy Density Hydrogel Thermo-Adsorptive Storage project (DE-EE0009679) developing novel thermal energy storage devices.
• Oak Ridge National LaboratorycoreStrategic or Co-development PartnerNational laboratory partnership on multiple DOE projects including dual-purpose heating and cooling thermal battery and hybrid manufacturing for high-performance air-to-refrigerant heat exchangers.
• International Copper AssociationmajorStrategic or Co-development PartnerPartnership for development of small-diameter copper-tube heat exchangers (3mm, 4mm, 5mm diameter) enabling use of flammable, natural, and low Global Warming Potential refrigerants.
• Rheem ManufacturingmajorStrategic or Co-development PartnerProject member on DOE-funded thermal energy storage projects including hydrogel thermo-adsorptive storage and dual-purpose heat pump thermal battery for residential and commercial applications.
• Electric Power Research Institute (EPRI)majorStrategic or Co-development PartnerProject member on DOE DE-EE0009681 dual-purpose heating and cooling thermal battery project for load shifting in heat pump systems.
• InsolcorpminorStrategic or Co-development PartnerProject member on DOE DE-EE0009681 dual-purpose heating and cooling thermal battery project.
• BrazewayminorStrategic or Co-development PartnerIndustry partner on DOE DE-EE0007680 advanced serpentine heat exchanger project for HVAC&R systems.
• Sub-ZerominorStrategic or Co-development PartnerIndustry partner on DOE DE-EE0007680 advanced serpentine heat exchanger project.
• Virtus Precision TubesminorStrategic or Co-development PartnerIndustry partner on DOE DE-EE0007680 advanced serpentine heat exchanger project for HVAC&R systems.

Scale indicators2 records

Recent moves1 record

Expansion highlights5 records

Broad incumbents

• Alfa Laval: One of the world's largest heat exchanger manufacturers (gasketed, brazed plate, shell-and-tube) serving HVAC, refrigeration, and industrial process cooling. Comparable to HTT on technology category but operates as a global OEM rather than a niche consultancy.
• Kelvion: Industrial heat exchanger manufacturer spanning plate, shell-and-tube, and brazed designs for HVAC, refrigeration, and process industries. Directly comparable as a downstream customer/licensing target for HTT's novel designs.
• Chart Industries (Heatric): Manufacturer of heat transfer and cooling products, including printed circuit HXs used in industrial and clean-energy applications. Comparable in advanced HX manufacturing and emerging thermal-energy applications.
• SWEP (Spirax Group): World leader in brazed plate heat exchangers for HVAC and refrigeration; overlaps with HTT's serpentine and brazed HX innovation area and competes for the same OEM design-in wins.
• Modine Manufacturing: Global manufacturer of heat exchangers and HVAC thermal management products for commercial, industrial, and data center applications. Overlaps with HTT's HVAC and data-center customer segments, but at massive scale and with in-house design rather than consulting.

Emerging players

• Nostromo Energy: Early-stage developer of ice-based thermal energy storage for building cooling. Comparable emerging thermal storage focus to HTT's hydrogel thermo-adsorptive TES work and dual-purpose heat pump thermal battery.
• EnergyNest: Norwegian-based thermal energy storage provider using concrete-based modules for industrial heat storage. Comparable industrial TES trajectory to HTT's process heat thermal storage work.

Direct peers

• Optimized Thermal Systems (OTS R&D): HTT's longest-standing partner (since 2008). OTS R&D operates an 8,000 sq ft lab with environmental chambers and wind tunnels and sells CoilDesigner/VapCyc software; together the two firms co-execute HX prototyping and analysis for the same client base.
• Brazeway: Large-scale manufacturer of heat exchanger components and assemblies with deep brazing capability and active HTT project partner on DOE serpentine HX project. Directly comparable on brazed HX technology and a current collaborator.
• Wolverine Tube: Specializes in microchannel and small-diameter copper and aluminum tubes for heat exchangers used in HVAC/R and automotive applications - directly comparable technology stack to HTT's small-diameter copper and extruded microchannel condenser work.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/heat-transfer-technologies

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

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 Heat Transfer Technologies