What elm.leblanc does

elm.leblanc is a French designer and manufacturer of gas and renewable-energy heating and hot-water solutions, operating as a wholly-owned subsidiary of Bosch Home Comfort (a division of Robert Bosch GmbH) since 1996. The company sells gas condensing boilers (wall-mounted and floor-standing, including the iCONDENS and oxylis iCONDENS ranges), low-NOx gas boilers (BAS NOx, acléis), gas instantaneous water heaters (ondéa HYDROPOWER BAS NOx, ondéa HYDROSMART BAS NOx 2), air-to-water and air-to-air heat pumps (Compress 3400i AWS, Climate 6000i, Climate 5000 L), commercial VRF systems (Air Flux 6300), collective heating boilers (Condens 7000 WP), connected regulation hardware, room thermostats, and sanitary hot-water tanks. Its Drancy site is the historical manufacturing base and is also designated a Centre de Compétence Industrie 4.0 within Bosch Thermotechnologie, housing the Campus X training and showroom facility.

The company's business model combines hardware sales with a recurring service and maintenance layer. Products are distributed primarily through a certified installer partner network across France, supported by the EasyPRO Partner Program and the proprietary elmLeCube digital platform for spare-parts ordering and remote diagnostics. After-sales revenue is generated by the Service Technique Constructeur, a 250-technician employed field-service network covering 9,500 cities in metropolitan France, supplemented by certified after-sales partner companies; customers also access maintenance contracts via monservicechauffage.fr and can purchase extended warranties up to 5 years on condensing heat-exchanger bodies. The customer base spans residential homeowners (primary), certified heating installers, social-housing operators (HLM), and tertiary segments including hotels, schools, and small commerce.

Commercially, elm.leblanc has operated under the dual brand elm.leblanc Bosch since June 2024, leveraging Bosch's consumer-brand equity while preserving its 1932 heritage in gas heating. The company's offerings are tightly integrated with French regulatory and incentive frameworks, including eco-PTZ, CEE certificates, MaPrimeRénov, RGE installer qualifications, and mandatory annual gas-boiler maintenance. Recent strategic activity includes the 2024 opening of the Campus X training facility (1,200 m², training 1,000+ professionals annually), a 2026 co-marketing partnership with GRDF on the Printemps de la Décarbonation campaign to promote hybrid heat-pump-plus-gas-bundle adoption, and a 2025 safety warning and free retrofit program for ondéa HYDROPOWER BAS NOx 14L units. All operations are concentrated in the French market; no international revenue footprint is disclosed.

Name

elm.leblanc

Legal name

elm.leblanc S.A.S.

Website

https://elmleblanc.fr

Company type

Private

Founded year

1932

Operating status

Operating

Headcount range

101–250 employees

Short description

elm.leblanc, a Bosch Home Comfort subsidiary since 1996, designs and manufactures gas condensing boilers, low-NOx water heaters, heat pumps, and connected heating controls in France, distributing through a certified installer network and a 250-technician service network covering 9,500 cities.

Ownership category

akta.pro rank

Product category

Residential and Commercial Heating Equipment Manufacturing

NAICS

Heating Equipment (except Warm Air Furnaces) Manufacturing (333414), Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Power Boiler and Heat Exchanger Manufacturing (332410), Plumbing, Heating, and Air-Conditioning Contractors (23822)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Heating Equipment, Except Electric & Warm Air Furnaces (3433), Heating Equip, Except Elec & Warm Air; & Plumbing Fixtures (3430), Wholesale-Hardware & Plumbing & Heating Equipment & Supplies (5070)

akta.pro primary industry

Commercial Water Heater & Boiler Service (HSAOACAJ)

akta.pro secondary industries

Water Heater Safety, Code Compliance & Permit Inspection Support (HSAOACAI), Water Heater/Boiler Flue, Venting & Chimney Liner Service (HSAOACAF), Expansion Tank, Circulator Pump & Zone Valve Service (HSAOACAG), Gas Meter Set, Relocation & Regulator Service Coordination (HSAOAKAG)

Keywords

• Gas condensing boilers
• Low NOx heating
• Heat pump systems
• Hydronic controls
• Domestic hot water

Headquarters

HQ city

Drancy

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Heating Equipment Sales: Sale of manufactured heating products including condensing gas boilers, BAS NOx gas boilers, instantaneous gas water heaters, hot water tanks, and connected controls. Products are sold through installer partners and direct professional sales channels.
2. After-Sales Services & Maintenance: The company's Service Technique Constructeur provides maintenance, commissioning, troubleshooting, and extended warranty services for all energy types. Services are delivered by 250 company technicians across France, and via a network of certified partner service companies.
3. Extended Warranty Programs: The company offers manufacturer warranty extensions beyond the standard 2-year warranty, up to 5 years on heat exchangers of condensing boilers, through warranty activation programs and service contracts.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels9 records

Core offering

elm.leblanc designs, manufactures, and distributes residential and commercial heating and hot water equipment in France, including gas condensing boilers, low NOx gas boilers, gas instantaneous water heaters, air-to-water and air-to-air heat pumps, VRF systems, connected regulation/thermostats, and sanitary hot water tanks. The company sells its products through a national network of certified installer partners and provides after-sales commissioning, maintenance, and repair services through the Service Technique Constructeur (250 technicians in 9,500 French cities) and the monservicechauffage.fr portal.

Product overview

elm.leblanc (now elm.leblanc Bosch) is a French heating solutions manufacturer offering a comprehensive portfolio of thermal comfort products. The core offering centers on gas condensing boilers (wall-mounted and floor-standing) including the iCONDENS and oxylis iCONDENS ranges, low NOx gas boilers (acléis BAS NOx), and gas instantaneous water heaters (ondéa HYDROPOWER BAS NOx, ondéa HYDROSMART BAS NOx 2). The portfolio extends to air-to-water heat pumps (Compress 3400i AWS, Compress 5000 DW), reversible air-to-air systems (Climate 6000i, Climate 5000 L), VRF commercial systems (Air Flux 6300), and collective heating solutions (Condens 7000 WP). Connected controls (Régulations connectées), room thermostats (Logamatic CT200/TC100), and hot water tanks (Ballons ECS, BST 120) complement the product ecosystem. Professional services include the EasyPRO Partner Program, 250-technician Service Technique network covering 9,500 cities, the elmLeCube digital platform for spare parts management, and Campus X training/showroom facility.

Differentiator

Problem solved

Functional benefit

Brands

• oxylis iCONDENS: A product line of gas condensing boilers with modern design and intuitive touchscreen interface.
• acléis BAS NOx
• ondéa HYDROPOWER BAS NOx
• ondéa HYDROSMART BAS NOx 2
• Condens 8300iW
• Condens 7000 WP

Products and services

• Gas condensing boilers (oxylis iCONDENS / Condens 8300iW / Megalis) High-efficiency wall-mounted and floor-standing gas condensing boilers that recover heat from flue gases, achieving energy savings exceeding 30% and efficiencies (PCI basis) exceeding 100%. The range includes oxylis iCONDENS (modern design with HMi tactile interface), Condens 8300iW, and Megalis models, available for residential and collective use with optional connected regulation. Target buyers are individual homeowners and collective-housing operators in France, sold through certified installer partners.
• Low NOx gas boilers (acléis BAS NOx) Wall-mounted and floor-standing gas boilers with BAS NOx low-nitrogen-oxide burner technology that meet stringent environmental emission standards while maintaining conventional boiler efficiency. The acléis BAS NOx is the principal model in the BAS NOx range. Intended for residential and small-commercial installations in France where reduced emissions are required.
• Gas instantaneous water heaters (ondéa HYDROPOWER BAS NOx, ondéa HYDROSMART BAS NOx 2) Compact gas instantaneous domestic hot water heaters including ondéa HYDROPOWER BAS NOx, which uses a turbine to generate its own electricity from water flow so no external electrical connection is required, and ondéa HYDROSMART BAS NOx 2 with smart features. Both deliver on-demand hot water with low NOx emissions and ultra-compact footprints suitable for small residential installations in France.
• Air-to-water heat pumps (Compress 3400i AWS, Compress 5000 DW) Air-to-water heat pumps producing sanitary hot water for residential applications with high energy efficiency. The Compress 3400i AWS is used for hot water production combined with the Climate 6000i for heating/cooling in new-build homes; the Compress 5000 DW is a thermodynamic water heater. These products form part of elm.leblanc's renewable-energy offering under QualiPAC-certified installer qualifications for French government incentives.
• Air-to-air heat pumps (Climate 6000i, Climate 5000 L) Reversible air-to-air heat pumps providing heating and cooling. The Climate 6000i serves residential applications and is shown paired with the Compress 3400i AWS in new-build scenarios; the Climate 5000 L is a cassette-style unit for commercial spaces such as pharmacies and small retail. Designed for the French residential and small-commercial market with noise levels as low as 19 dB(A).
• VRF commercial system (Air Flux 6300) Variable Refrigerant Flow system for hotels and tertiary buildings providing integrated heating, cooling, and ventilation control, configurable with hydraulic modules for hotel-suite installations. Featured at the Campus X showroom and targeted at commercial/tertiary customers in France.
• Collective condensing boiler (Condens 7000 WP) Wall-mounted gas condensing boiler designed for collective heating applications, capable of cascade installations for larger buildings such as school boiler rooms and multi-dwelling social-housing projects. Part of elm.leblanc's range aimed at social housing operators and tertiary customers in France.
• Sanitary hot water storage tanks (Ballons ECS, BST 120) Hot water storage tanks available in capacities from 75 to 300 liters (including BST 120 models) for combination with boilers or as independent units. Target buyers are residential and small-commercial customers in France needing reliable sanitary hot water storage.
• Connected controls and room thermostats (Logamatic CT200, TC100, Régulations connectées) Internet-connected heating regulation devices including the Logamatic CT200 and TC100 room thermostats and the elm.leblanc connected regulation family. They enable remote management of boilers via apps (HomeCom Easy, ElmControl, ElmTouch), automatically reduce heating costs, and are compatible with older boiler models. Targeted at residential and small-commercial end users in France, with professional management apps (Bosch HomeCom Pro, MEC Remote, Bosch EasyService) for installers.
• Service Technique Constructeur (manufacturer technical service) National after-sales service network staffed by 250 elm.leblanc technicians covering 9,500 cities across France, providing commissioning, annual maintenance, troubleshooting, repair, and warranty services across all energy types. Connected to customers through the monservicechauffage.fr portal for appointment booking, maintenance contracts, and warranty activation. Includes extended manufacturer warranty up to 5 years on condensing-boiler heat exchangers.

Quantifiable outcome

• Condensing boilers achieve over 30% energy savings and yields exceeding 100% (PCI basis) compared to conventional boilers
• +5 more outcomes

Named customers6 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration12 records

Feature5 records

Partnerships

Four partnerships are on record, tiered flagship and core.

• GRDF (Gaz Réseau Distribution France)flagshipGTM or Marketing Partner · 15 April 2026GRDF, France's natural gas distribution network operator, partners with elm.leblanc on the 'Printemps de la Décarbonation' (Spring Decarbonation) promotional campaign running April 15 to June 30, 2026. Consumers purchasing qualifying elm.leblanc or Bosch condensing gas boilers, or hybrid heat pump systems coupled with a condensing boiler, receive free appliances (Air Fryer or air purifier) as incentives. The partnership targets gas energy transition and hybrid heating adoption in France.
• Bosch Thermotechnologie / Bosch Home Comfort GroupcoreStrategic or Co-development Partner · 1 January 1996elm.leblanc has been an integral part of the Bosch Home Comfort division since 1996. The partnership provides elm.leblanc access to Bosch's technological leadership, brand equity, and global R&D resources. Since June 2023, elm.leblanc operates under the dual brand 'elm.leblanc Bosch', leveraging Bosch's brand recognition while maintaining its historic expertise in gas heating technology. Products are manufactured in France under Bosch quality standards.
• Certified After-Sales Service Partner CompaniescoreChannel Partner/ Reseller/ Distributorelm.leblanc supports its after-sales service through a network of highly qualified and regularly trained partner service companies operating across all of France. These partners are trained on elm.leblanc products and new technologies through regular training sessions and receive staged training to improve their skills and service quality.
• elmLeCube Digital PlatformcoreTechnology or IntegrationelmLeCube is elm.leblanc's proprietary digital platform for professional clients (installers, service partners) enabling online spare parts returns and ordering, remote diagnostic capabilities, and real-time spare part availability checks. It streamlines after-sales logistics between the Drancy parts center and field technicians.

Scale indicators6 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Chaffoteaux: Historic French gas boiler and water heater brand, part of Ariston Group, with overlapping condensing gas, instantaneous water heater and heat pump SKUs and an installer-led distribution model in France — directly comparable to elm.leblanc's residential heating core.
• Saunier Duval: Major French residential gas heating brand owned by Vaillant Group, offering condensing boilers, heat pumps and hot water solutions through a similar certified installer channel — the closest 1:1 competitor to elm.leblanc Bosch in product mix and go-to-market.
• Frisquet: Independent French manufacturer of gas condensing boilers and water heaters, distributed via a dense French installer network — directly comparable legacy French gas brand competing head-to-head with elm.leblanc in the residential segment.
• Atlantic: Large French HVAC group producing heat pumps, condensing boilers, water heaters and connected controls with strong installer relationships — overlaps with elm.leblanc across residential heating, hybrid systems and controls, though broader in scope.
• De Dietrich Thermique: French heating brand active in condensing boilers, heat pumps and connected solutions for residential and collective housing — directly comparable to elm.leblanc's portfolio, including social-housing/collective applications like Condens 7000 WP.

Broad incumbents

• Viessmann: Large German heating manufacturer with broad condensing boiler, heat pump and digital-service offerings in France — competes with elm.leblanc across the full residential heating stack but is larger, broader and headquartered outside France.
• Vaillant Group: Major European heating group (Vaillant, Saunier Duval, Bulex) with extensive French presence in condensing boilers, heat pumps and service; broader portfolio and greater scale than elm.leblanc but overlapping customer base and installer channels.
• Ariston Group: Italian multinational owner of Chaffoteaux and other heating brands, with condensing boilers, heat pumps and water heaters sold across Europe — competes with elm.leblanc's product lines through French subsidiaries and is significantly larger in scale.
• Bosch Thermotechnologie / Bosch Home Comfort: Parent division of elm.leblanc and itself a major European HVAC player; the dual-brand 'elm.leblanc Bosch' explicitly shares go-to-market and technology, making the parent the most directly comparable sibling while also being the structural backbone of elm.leblanc's offering.

Regional players

• Remeha (BDR Thermea Group): Netherlands-based heating manufacturer with French presence offering condensing boilers, water heaters and heat pumps — comparable on product mix and installer channel but headquartered in a different geography.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/elm_leblanc
• LinkedInlinkedin.com/company/elm-leblanc-sas

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 elm.leblanc