What Hubbell Electric Heater Co does

Hubbell Electric Heater Co., founded in 1920 as the Electric Heater Company and rebranded under its current name, is a U.S. manufacturer of engineered commercial and industrial water-heating solutions headquartered at 45 Seymour Street, Stratford, Connecticut. The company operates as a subsidiary of The Nudyne Group LLC, a third-generation privately held holding company that also owns Vaughn Thermal, Ace Heaters, RECO Commercial Systems, and Warren Electric Corporation. Hubbell designs and builds electric, gas, indirect-fired, storage, and tankless/semi-instantaneous water heaters with storage capacities from 1 to 10,000+ gallons and power ratings up to 1,600 kW, serving commercial, industrial, military/naval, marine/offshore, foodservice, and specialty-process applications.

The product portfolio is anchored by HydraStone, a proprietary centrifugally-applied high-density cement lining roughly 100x thicker than typical glass linings that eliminates the need for sacrificial anode rods, and is supported by an unusually dense certification stack (ISO 9001:2015, ASME Section VIII, ABS Type Approval, ANSI/ISEA Z358.1, Buy American Act, UL/CSA, Class I Div 2). Products are organized across five lines (Electric, Indirect, Gas, Storage, Full Package) and include custom-engineered, factory-tested packaged skid systems with RS485 and optional BACnet integration. Manufacturing spans multiple U.S. sites, including the Stratford CT headquarters, a ~125,000 sq ft RECO facility in Cayce, SC, and a Warren, RI site, with additional capability in California and Massachusetts through Nudyne sister brands.

Revenue is generated through direct sales quotes and a manufacturer representative network on an engineered-to-order basis, supplemented by an equipment rental program (rentawaterheater.com), a foodservice e-commerce channel (BoosterHeater.com), and aftermarket parts and technical support. Named customers include the U.S. Coast Guard (vendor of choice for all 77 Fast Response Cutters), a global automaker (corrosion testing chambers), the Baha Mar resort, an Idaho mining operation, and a Four Lakes dam infrastructure project. Headcount is reported at 51–100 employees; no external funding rounds or public financials are disclosed.

Name

Hubbell Electric Heater Co

Legal name

Hubbell Electric Heater Co.

Website

https://hubbellheaters.com

Company type

Private

Founded year

1920

Operating status

Operating

Headcount range

51–100 employees

Short description

Hubbell Electric Heater Co is a Stratford, Connecticut-based manufacturer of custom-engineered commercial and industrial water heaters—electric, gas, indirect, storage, and tankless—serving naval, marine, industrial, foodservice, and specialty-process customers as part of the Nudyne Group family.

Ownership category

akta.pro rank

Product category

Commercial Water Heaters

NAICS

Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341), Heating Equipment (except Warm Air Furnaces) Manufacturing (333414)

SIC

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

akta.pro primary industry

Tank Water Heater Installation & Replacement (HSAOACAA)

akta.pro secondary industries

Tankless Water Heater Installation & Service (HSAOACAB), Boiler Repair, Maintenance & Tune-Ups (HSAOACAD), Expansion Tank, Circulator Pump & Zone Valve Service (HSAOACAG), Water Heater Safety, Code Compliance & Permit Inspection Support (HSAOACAI), Commercial Water Heater & Boiler Service (HSAOACAJ), Emergency Water Heater Repair & No-Hot-Water Service (HSAOAMAE)

Keywords

• Commercial water heaters
• Industrial water heating
• Tankless water heaters
• Booster heaters
• ASME pressure vessels

Headquarters

HQ city

Stratford

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Engineered-to-order water heating equipment: Primary revenue stream from design, manufacture, and sale of electric, gas, indirect, storage, and packaged skid water heating systems (capacities 1-10,000+ gallons, up to 1600 kW) configured per customer specification; sold via direct sales and manufacturer rep channel with quote-based pricing.
2. Equipment rental program: Rental of water heating equipment via a dedicated rental program (rentawaterheater.com) and dedicated rental phone line (203-380-3321), providing temporary or supplemental hot water heating solutions.
3. Foodservice e-commerce (BoosterHeater.com): Direct-to-consumer online storefront for booster heaters, parts, and accessories targeting restaurants, food trucks, hospitals, cafeterias, casinos, and other commercial kitchens via a separate consumer brand site.
4. Aftermarket service, parts, and technical support: Ongoing technical support (203-378-2422 tech support line), product registration, downloadable technical documents/brochures, and tech tip content supporting installed base and replacement parts revenue.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels9 records

Core offering

Hubbell engineers and manufactures standard and customized water heating solutions for commercial, industrial, military, marine, and foodservice applications, offering storage capacities from 1 to 10,000 gallons across electric, gas, indirect, and storage product lines. The company also produces tankless and semi-instantaneous water heaters, custom-engineered skid systems, and foodservice booster heaters, with a separate equipment rental program. Production is U.S.-based in ISO 9001:2015-certified facilities with Buy American Act compliance.

Product overview

Hubbell Electric Heater Co. is a single integrated manufacturer of engineered commercial and industrial water heating solutions organized around five primary product lines (Electric, Indirect, Gas, Storage, and Full Package) with no software-as-a-service platform component. The Electric line includes the Signature Series (CR packaged instantaneous circulation; SH/H ASME storage), Endurance Series (E, SE, EH/SEH, CE110, CE25) low-capacity storage, Omni Series (PBX, HHP) heat pumps, Tankless Series (HX/TX, TXA, R, ETX/ETXA), Suretemp Series (EMV) for tepid water, Seafare Series (ME, MSE, MSH/MH, MTX, MTXA) for marine, UltraPure Series (HD, D) for RO/DI water, Process Series (V) for industrial process, and Resistance Series (ER) for hazardous locations. The Indirect line comprises the Synergy Hydro Series (BW, BWP, BWX, BWXP, Transflow, SLN) for boiler water and the Synergy Steam Series (ST, STX, PS, STWH) for steam. The Gas line is the Prime Series (NX, NXT, NX Plus, NXD, GSE). Storage offers the ASME Carbon Steel Buffer Tank, and Full Package covers custom-engineered skid systems. HydraStone cement lining is a proprietary tank-protection technology that underpins most of Hubbell's storage products. Hubbell operates as part of The Nudyne Group LLC, alongside sister brands Vaughn Thermal, Ace Heaters, and the acquired RECO Commercial Systems and Warren Electric Corporation; the company's booster heater portfolio is also sold through a dedicated foodservice site, BoosterHeater.com.

Differentiator

Problem solved

Functional benefit

Brands

• Hubbell Heaters: Primary commercial trade name used in branding, marketing, and product labeling for Hubbell Electric Heater Co.'s commercial and industrial water heating solutions.
• BoosterHeater.com

Products and services

• Signature Series CR Packaged instantaneous electric circulation water heater with stainless steel ASME-stamped pressure vessel; configurable up to 1,600 kW across all voltages and phases for industrial, commercial, naval, and marine applications.
• Signature Series SH/H Fully packaged electric storage water heater with 80-10,000 gallon capacity and 15-1,600 kW ratings; HydraStone cement-lined tank, dual-fuel option, ASME Section VIII option for heavy-duty commercial and industrial use.
• Endurance Series (E, SE, EH/SEH, CE110, CE25) Hubbell's low-capacity electric storage line covering 1-119 gallon capacities and up to 58 kW, including E, SE, EH/SEH horizontal configurations, and compact CE110/CE25 point-of-use units.
• Omni Series Heat Pumps (PBX, HHP) Heat pump water heaters including PBX (40-119 gallon, up to 58 kW) and HHP high-capacity heat pump (up to 10,000+ gallon, up to 88 kW); compatible with ASME-rated applications.
• Tankless Series HX/TX Compact, 98%+ efficient on-demand commercial electric tankless water heater up to 54 kW in single or three phase voltages with digital temperature controls and optional BACnet module.
• Tankless Series TXA ASME-rated commercial tankless electric water heater, instantaneous design up to 162 kW three phase, with high-grade materials for longevity.
• Tankless Series R Compact point-of-use tankless electric water heater available 3-27 kW single phase for lavatory sinks, condos, apartments, and whole-house use.
• Tankless Series ETX / ETXA Tankless tepid water heater for emergency eyewash and shower stations, up to 54 kW (ASME option up to 162 kW); achieves precise 85°F control and meets NEMA 4 and ANSI/ISEA Z358.1-2014.
• Suretemp Series EMV 119-gallon tepid water heater with thermostatic mixing valve, up to 23 kW, providing high-volume precise temperature output for emergency shower and eyewash systems; meets ANSI/ISEA standard.
• Seafare Series ME Light duty marine electric water heater, 6-119 gallon capacity, up to 12 kW single phase, with optional ABS Type Approval, HydraStone cement lining, and polyurethane foam insulation.
• Seafare Series MSE High-capacity shipboard electric water heater, 6-119 gallon, up to 58 kW single or three phase; ABS Type Approval option, HydraStone cement-lined steel tank with deck/bulkhead mounting supports.
• Seafare Series MSH/MH Heavy-duty marine electric water heater, 8-5,000 gallon capacity, 15-1,600 kW; optional ABS Type Approval, horizontal or vertical configurations, optional factory-installed heat exchanger.
• Seafare Series MHX/MTX Shipboard low-capacity tankless electric water heater up to 54 kW single or three phase, wall-mounted, optional ABS Type Approval, 98%+ efficiency.
• Seafare Series MTXA High-capacity marine ASME tankless electric water heater up to 162 kW three phase, wall mounted, optional ABS Type Approval, flow rates up to 40 GPM, 98%+ efficiency.
• UltraPure Series D Storage water heater for reverse osmosis / deionized pure water applications, 1-119 gallon capacity, up to 58 kW; 316L stainless steel heating element and vessel for corrosion resistance.
• UltraPure Series HD RO/DI point-of-use water heater for ultra-pure and mildly corrosive water applications, up to 88 kW; solid 316L stainless steel ASME pressure vessel.
• Process Series V ASME stainless steel process water heater for industrial applications, up to 88 kW all voltages, with digital temperature controller, CFC/HCFC-free closed-cell foam insulation.
• Resistance Series ER Intrinsically safe explosion-resistant electric water heater for hazardous (Class 1, Div 2) locations, 10-119 gallon capacity, 1.5-58 kW; HydraStone cement lining, sealed heating element, UL and CSA compliant.
• Synergy Hydro Series BW ASME packaged indirect storage water heater using boiler water or high-temperature hot water, 80-10,000 gallons, HydraStone cement-lined carbon steel vessel with stainless steel tappings.
• Synergy Hydro Series BWP Indirect-fired heavy-duty ASME water heater 120-400 gallon with low-temperature boiler water, 0-3,660 GPH recovery, plate-type heat exchanger, HubbellConnect Elite digital controller.
• Synergy Hydro Series BWX Fully packaged semi-instantaneous indirect water heater using boiler water or HTHW, up to 6,000 GPH recovery, vertical or horizontal orientations, ASME Boiler and Pressure Vessel Code compliant.
• Synergy Hydro Series BWXP Fully packaged instantaneous indirect water heater for condensing-boiler or low-temperature boiler water applications; plate-type heat exchanger enables more efficient heat transfer than U-tube.
• Synergy Hydro Series Transflow Light duty indirect fired water heater for boiler water heat sources, 35-119 gallon capacity, heavy gauge copper fin tube coil, 2-inch polyurethane foam insulation, HydraStone cement-lined tank.
• Synergy Hydro Series SLN Vertical storage solar-powered indirect water heater, 65-119 gallon capacity, copper fin tube design, removable heating coil, HydraStone cement-lined tank; no electrical connections required.
• Synergy Steam Series ST ASME packaged indirect storage water heater using steam to generate potable water, 80-5,000 gallon capacity, HydraStone cement-lined vessel, stainless steel pressure vessel.
• Synergy Steam Series STX Packaged semi-instantaneous steam-fired indirect water heater providing up to 10,500 GPH, U-tube bundle design, 1-770 GPM flow range, vertical or horizontal orientations, non-ferrous pressure vessel.
• Synergy Steam Series PS Light duty point-of-use steam-fired indirect water heater, 65-119 gallon capacity, copper fin tube heating coil, 3-inch polyurethane foam insulation, HydraStone cement-lined tank.
• Prime Series NX High-efficiency fully condensing gas water heater with water-tube heat exchanger, 200-800 MBTU input, 96% thermal efficiency, up to 8:1 turndown ratio, scalable up to 8 units for 6.4 million BTUs.
• Prime Series NXT Commercial gas storage water heater, 40-150 gallon capacity, BTU input 200-400 MBH, 96% thermal efficiency, 8:1 turndown ratio, 316L stainless steel heat exchanger, HydraStone cement-lined storage tank.
• Prime Series NX Plus High-efficiency condensing gas water heater for retrofits, 1,250-4,000 MBTU input, up to 99.9% efficiency, 9:1 turndown ratio, stainless steel heat exchanger, outdoor-rated enclosure.
• Prime Series NXD Condensing gas hot water heater for reverse osmosis / deionized water systems, 96% thermal efficiency, 200-800 MBH inputs, 8:1 turndown ratio, fully modulating burner, scalable up to 8 units for 6.4 million BTUs.
• Prime Series GSE Gas storage water heater 40-119 gallons with high-efficiency condensing burner, 94% thermal efficiency, 8:1 turndown ratio, modular 316L stainless steel heat exchanger, HydraStone cement lining.
• ASME Carbon Steel Buffer Tank ASME Section VIII Division 1 stamped carbon steel buffer tank, 120-5,000 gallon capacity, 2 and 4 pipe configurations; designed to prevent short cycling of boilers/chillers; 5-year warranty.
• Full Package Custom Engineered Skid Systems Custom-engineered packaged skid systems that integrate Hubbell water heating products with factory-selected controls and pre-piping/pre-wiring for turnkey delivery to industrial, naval, and commercial sites.
• HydraStone Cement Lining Hubbell's proprietary high-density cement tank lining applied at a minimum ½ inch (100x thicker than glass lining) via centrifugal spinning at 250 RPM; eliminates the need for sacrificial anode rods.
• Hubbell Booster Heaters (J1SSA, JTX, J3, J6, J16, JFR) Foodservice-focused booster heaters including J1SSA point-of-use, JTX and J16 tankless booster, J3 and J6 electric booster, and JFR food rethermalizer; designed for commercial kitchens.
• Water Heater Equipment Rental Program Rental of water heating equipment via a dedicated rental program (rentawaterheater.com) and dedicated rental phone line (203-380-3321) for temporary or supplemental hot water heating solutions.
• Aftermarket Technical Support and Parts Ongoing technical support (203-378-2422 tech support line), product registration, downloadable technical documents/brochures, and tech tip content supporting installed base and replacement parts revenue.

Quantifiable outcome

• 94% thermal efficiency on Prime GSE condensing gas storage water heater
• +5 more outcomes

Named customers6 records

Segments6 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature7 records

Partnerships

Nine partnerships are on record, tiered flagship, minor and core.

• The Nudyne Group LLCflagshipStrategic or Co-development Partner · 28 December 2021The Nudyne Group LLC is a third generation privately held company headquartered in Stratford, Connecticut, and parent owner of Hubbell, Vaughn Thermal, and Ace Heaters. Nudyne expanded strategically across North America by acquiring RECO Commercial Systems in December 2021 to add large-capacity storage tank production capability.
• RECO Commercial Systems LLCflagshipStrategic or Co-development Partner · 28 December 2021RECO Commercial Systems, based in Cayce, South Carolina, was acquired by The Nudyne Group LLC (Hubbell's parent) in December 2021. RECO manufactures hot and cold water ASME pressure vessels and water heaters with storage tanks up to 15,000-gallon capacity from a 15-acre, 125,000 sq ft facility; production remains in South Carolina under the RECO Commercial Systems LLC name.
• Greenfield DynamicsminorImplementation/ SI/ Consulting PartnerGreenfield Dynamics, a leading commercial HVAC and plumbing equipment manufacturer's representative, partnered with Hubbell to deliver a custom-engineered Signature CR solution for a global automaker's vehicle corrosion testing facility. Three skid-mounted, pre-piped, and pre-wired systems were supplied with 316L stainless steel construction and RS485 communications.
• Buckman GroupminorOthersBuckman Group served as corporate counsel on The Nudyne Group LLC's acquisition of RECO Commercial Systems (announced December 28, 2021).
• Finkel Law GroupminorOthersFinkel Law Group served as real estate transaction counsel on The Nudyne Group LLC's acquisition of RECO Commercial Systems (announced December 28, 2021).
• Vaughn ThermalcoreStrategic or Co-development PartnerVaughn Thermal is a sister brand to Hubbell under The Nudyne Group LLC portfolio, alongside Hubbell, Ace Heaters, and RECO Commercial Systems, collectively focused on water heating and hot water storage systems for the plumbing industry.
• Ace HeaterscoreStrategic or Co-development PartnerAce Heaters is a sister brand to Hubbell under The Nudyne Group LLC portfolio of water heating brands.
• Warren Electric CorporationcoreStrategic or Co-development PartnerWarren Electric Corporation, based in Warren, Rhode Island, was acquired by The Nudyne Group LLC (Hubbell's parent company) and announced as part of the brand portfolio expansion.
• U.S. Coast Guard Fast Response Cutter ProgramflagshipStrategic or Co-development PartnerHubbell Heaters is the vendor of choice supporting modernization efforts on all 77 vessels in the U.S. Coast Guard Fast Response Cutter (FRC) program, providing tankless water heaters for potable hot water onboard. The 62nd FRC, USCGC Vincent Danz, was recently delivered as part of this program.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• A.O. Smith Corporation: A.O. Smith is the largest North American water heater manufacturer, offering commercial and residential electric, gas, and tankless water heaters along with the Lochinvar brand of high-efficiency commercial boilers and water heaters. It competes directly with Hubbell across commercial storage, tankless, and condensing gas segments but at much greater scale.
• Rheem Manufacturing Company: Rheem is a major North American producer of commercial and residential water heaters, including the commercial Rheem Commercial and Rudd brands. It directly competes with Hubbell on commercial gas and electric storage products and on tankless offerings through Eemax.
• State Industries (State Water Heaters): State Industries produces a broad range of commercial gas, electric, and oil-fired water heaters. It overlaps with Hubbell's commercial storage and industrial process lines and is a frequent bidder on the same specification-driven projects.
• Bosch Thermotechnology (Bosch Home Comfort): Bosch produces commercial and residential water heaters, including tankless, heat pump, and storage products sold under Bosch, Buderus, and FHP brands. It is a global competitor that overlaps with Hubbell on condensing gas, tankless electric, and commercial heat pump water heating.
• Watts Water Technologies (PVI / Aerco): Watts owns PVI (a maker of commercial water heaters and storage tanks) and Aerco (high-efficiency commercial boilers and water heaters). These brands overlap directly with Hubbell's large-capacity commercial storage and high-kW industrial process heating offerings.

Direct peers

• Rinnai America Corporation: Rinnai is a global leader in tankless water heating technology with a strong North American commercial presence. It competes directly with Hubbell's tankless HX/TX series on efficiency, digital controls, and commercial tankless applications including BACnet integration.
• Navien Inc. Navien manufactures high-efficiency condensing tankless water heaters and combi-boilers for residential and light commercial markets in North America. It competes with Hubbell on condensing efficiency, turndown ratios, and smart controls in the commercial tankless and high-efficiency gas segments.
• Cleaver-Brooks: Cleaver-Brooks is a major U.S. manufacturer of commercial and industrial boilers, indirect-fired water heaters, and packaged steam systems. It directly competes with Hubbell's Synergy Hydro and Synergy Steam indirect water heater lines in industrial process and large commercial projects.
• Bradford White Corporation: Bradford White is a U.S. privately held manufacturer of commercial and residential water heaters including high-efficiency condensing gas and electric tankless products. It is one of the closest direct competitors to Hubbell in mid-to-large commercial water heating applications, particularly for engineers specifying American-made products.

Emerging players

• Reimers Electra Steam: Reimers Electra Steam produces commercial and industrial electric steam boilers, hot water boilers, and water heaters. It is a more focused competitor to Hubbell on industrial electric water heating and steam-fired systems, particularly in smaller-capacity industrial applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/hubbellheaters
• YouTubeyoutube.com/channel/UCuw1YvMn4PO1H-yFt6zseBw
• LinkedInlinkedin.com/company/hubbell-electric-heater-co-
• Instagraminstagram.com/hubbell_heaters

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

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

M&A1 record

Investments

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

Frequently asked questions about Hubbell Electric Heater Co