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DIFF

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uuid005gthy

Namestring
DIFF
Legal namestring
Thermcross
Websiteurl
thermcross.fr
Company typeenum
Private
Founded yearstring
-
Descriptiontext

DIFF is a French B2B wholesale distributor of HVAC spare parts, operating as a trading brand under the privately-held Thermcross Group headquartered in Craponne, Auvergne-Rhône-Alpes. The company sells 100,000+ product references across 200-400+ equipment brands to sanitary and heating wholesalers (grossistes), with sister brand RGS serving the service technician and operator segment. Its catalog spans heating system components (boiler parts, burners, gas valves, ignition electrodes, heat exchangers), hydraulic, electrical, sanitary, air conditioning, and ventilation parts.

DIFF combines a multi-brand spare parts distribution operation with a proprietary private-label product line (DIFF and DIFF-ISOTHERM) offering OEM-equivalent replacement parts for major manufacturers including Frisquet, Saunier Duval, De Dietrich Chappée, and Vaillant. The EDITHERM digital platform provides 10,000 exploded views and nomenclature covering 35,000 models across 400+ brands, enabling technicians to identify and order correct parts. Operations are supported by an ISO 9001-certified quality management system and a B2B e-commerce platform offering real-time stock and pricing visibility with next-day delivery for orders placed before 18:00.

The business model is transactional B2B wholesale distribution, with professional pricing structured on an account basis requiring SIRET validation. Revenue mechanics are volume-based on unit/quantity orders, combining OEM parts resale with higher-margin DIFF private-label equivalents. The group is privately held with no external institutional or PE ownership disclosed, and operates primarily in France with broader European reach through the Thermcross platform.

Short descriptiontext

DIFF is a French B2B wholesale distributor of HVAC spare parts under Thermcross Group, selling 100,000+ SKUs across 400+ brands to sanitary and heating wholesalers, with proprietary DIFF/ISOTHERM private-label parts and the EDITHERM exploded-view platform.

Operating statusenum
Operating
Ownership categoryenum
Headcount rangeband
51–100
akta.pro rankint
HeadquartersCraponne, France
HQ citystring
Craponne
HQ countrystring
France
HQ regionstring
Europe
Markets served

Serves global market

Offices1 record

Each record includes

City, Country, Type, Description, Source

Keyword5 values
HVAC spare parts, heating ventilation distribution, boiler replacement parts, plumbing wholesale supply, spare parts catalog
Industry1 code
1Home Improvement & DIY (Tools, Hardware, Paint) Distribution
CodeCRAOAFACPrimaryYes
SIC code2 codes
  • Refrigeration & Service Industry Machinery3580
  • Wholesale-Misc Durable Goods5090
Product category
HVAC Spare Parts Distribution
Social media profiles1 record
GTM motion1 record

Each record includes

Type, Description, Source

Revenue model1 record
1Spare parts distribution
TypeOne Time License
Description

DIFF generates revenue through the sale of HVAC spare parts to wholesale distributors. Products include both original manufacturer parts and DIFF private label equivalents across categories such as heating, plumbing, air conditioning, and ventilation. Revenue is transactional with pricing based on unit/quantity orders.

thermcross.fr
Marketing channels3 records

Each record includes

Title, Type, Stage, Description, Source

Distribution channels2 records

Each record includes

Title, Type, Scope, Target buyer, Description, Source

Cost components6 values
Operations, Supply Chain, Personnel, Infrastructure, Marketing or Sales, Technology or R&D
Pricing details1 tier
1Wholesale B2B pricing with account-based net prices
ModelTransaction based/ take rateBilling cadencePay-as-you-go
Notes

Professional pricing requires account creation with SIRET validation. List prices visible but net prices displayed after login. Sample product: Electrode allumage ionisation CD25/32 - 43.58€ HT (reference 42000)

thermcross.fr
GTM typeB2B
B2B
Offering typeServices
Services
Brand1 of 4 records shown
1DIFF
Description

Distributor brand for wholesale sanitary and heating professionals, offering both manufacturer parts and DIFF-labeled products

thermcross.fr
+3 more records
Core offering1 text field

DIFF is a wholesale distributor of HVAC, heating, and sanitary spare parts, supplying over 100,000 SKUs from 400+ manufacturers across 35,000 equipment models to professional installers and resellers. The company complements genuine OEM parts with equivalent DIFF and DIFF-ISOTHERM branded alternatives, and supports buyers with the EDITHERM digital platform offering 10,000+ exploded technical views.

Differentiator
Functional benefit
Problem solved
Quantifiable outcome1 of 3 values shown
  • 35,000 models covered through EDITHERM nomenclature
+2 more records
Product overview1 text field

DIFF is a wholesale-focused distributor brand under the Thermcross Group, operating alongside the RGS brand. DIFF offers a catalog of thousands of HVAC spare parts encompassing both original manufacturer components and DIFF/ISOTHERM-branded equivalents. The product portfolio covers major categories including heating system components (boiler parts, burners, gas valves, ignition electrodes), climate control and heat pump components, hot water heater parts, sanitary equipment, hydraulic components, electrical parts, and ventilation/fume extraction systems. Key product lines include ignition and ionization electrodes, safety valves, 3-way valves with motors, heat exchangers, sensors, burner gasket kits, and gas control boxes. The Editherm exploded-view service complements the parts catalog by providing technical diagrams for part identification. DIFF serves wholesalers and distributors, while the RGS sister brand targets service technicians and operators.

Product and service3 records
1DIFF Brand Spare Parts
CategoryHVAC spare parts distribution
Description

Wholesale distribution of HVAC, heating, sanitary, and water-heater replacement parts from 400+ manufacturers spanning 100,000+ SKUs and 35,000 equipment models, sold to wholesale distributors and professional installers.

2DIFF - ISOTHERM
CategoryHVAC spare parts distribution
Description

OEM-Equivalent private-label brand of replacement components for HVAC and sanitary equipment, offering an alternative to genuine OEM parts at typically lower cost.

3EDITHERM Digital Platform
CategoryTechnical documentation service
Description

Online platform providing 10,000+ exploded technical views to help installers and distributors identify the correct replacement part for specific equipment models.

Scale indicator7 records

Each record includes

Type, Value, Description, Source

Partnership7 partners
1Frisquet
Strategic tierCoreTypeTechnology or Integration
Description

DIFF offers proprietary replacement parts for Frisquet heating equipment including electrode ignition kits (F3AA41248, F3AA40944, F3AA40839) and other spare components. Products are labeled and packaged under the DIFF brand while maintaining interchangeability with original Frisquet parts.

2Saunier Duval
Strategic tierCoreTypeTechnology or Integration
Description

DIFF provides comprehensive replacement parts for Saunier Duval equipment including safety valves, 3-way valves with motors (S1025500, S1020800, S1079100), control candles (05151600), ignition candles (0010043328), and plate heat exchangers for various Saunier Duval models including Themaplus, Isotwin, Isosplit, and Thema models.

3Vaillant
Strategic tierCoreTypeTechnology or Integration
Description

DIFF supplies replacement components for Vaillant systems including gas valves (0020268765), ignition electrodes (0020246709), sensors (0020143502), spark plugs, and burner joint kits (0020025929) for Vaillant air conditioning and heat pump units.

4RIELLO
Strategic tierCoreTypeTechnology or Integration
Description

DIFF stocks 1,628+ spare parts for RIELLO heating equipment including burners (biofuel Millenium 40G3), control boxes (530N), pumps, filters, electrodes, expansion vessels, and electronic control boards. RIELLO is an Italian manufacturer renowned for gas, oil, and condensing boilers.

5De Dietrich Chappée
Strategic tierCoreTypeTechnology or Integration
Description

DIFF provides replacement parts for De Dietrich Chappée equipment including mini accumulator expansion vessels (JJJ005658420) and other components.

6ISOTHERM (Thermcross subsidiary)
Strategic tierCoreTypeTechnology or Integration
Description

DIFF-Isotherm products are designed, manufactured, and tested by ISOTHERM (sister company within Thermcross Group). These parts offer guarantees of interchangeability and quality equivalent to original parts, providing proprietary alternatives for specific manufacturer equipment.

7Editherm (Thermcross service)
Strategic tierCoreTypeTechnology or Integration
Description

Editherm is the digital platform service provided by Thermcross Group, offering 10,000 exploded views and nomenclature for 400+ brands and 35,000 models. This proprietary platform enables precise parts identification for DIFF and RGS customers.

Recent move5 records

Each record includes

Date, Type, Title, Description, Source

Expansion highlight4 records

Each record includes

Type, Description

Market position
Competitive moat4 records

Each record includes

Type, Details

Key highlights6 records

Each record includes

Headline, Details, Source

Customer concentration

Classification, Details

Named customers2 records

Each record includes

Name, Industry, Type, Use case, Source, UUID

Segment2 records

Each record includes

Title, Type, Primary, Description, Pain point addressed, Use case, Source

Ideal customer profile2 records

Each record includes

Profile, Firmographic size, Sales motion, Sales cycle length, Buying structure, Purchase trigger, Buyer persona, Geography, Industry vertical, Primary use case, Description, Pain points, Evidence proof points, Target buyer

Technology focused
No
API detail
Has APIbool
No

Docs URL, Description

AI maturity
App detail

Has app

Feature2 records

Each record includes

Title, Differentiator, Description, Source

Core technology
Revenue estimate
Valuation estimate
Number of profiles
Subsidiaries3 records

Each record includes

Name, Acquired on, Relationship type, Type, Business focus

Compliance1 record

Each record includes

Name, Class, Description

Funding overview

Funding stage, Last funding date, Total funding USD

Funding rounds

Each record includes

Round, Amount USD, Date, Pre money valuation, Total investors, Investors, News

Investors

Each record includes

Name, Type, Date of entry, Rounds participated, Website

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

M&A

Each record includes

Name, Acquisition type, Announced date, Completed date, Status, Website, News

Investment

Each record includes

Name, Round, Announced date, Lead investor, Website, News

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

DIFF

HVAC Spare Parts Distributionthermcross.fr

DIFF is a French B2B wholesale distributor of HVAC spare parts under Thermcross Group, selling 100,000+ SKUs across 400+ brands to sanitary and heating wholesalers, with proprietary DIFF/ISOTHERM private-label parts and the EDITHERM exploded-view platform.

What DIFF does

DIFF is a French B2B wholesale distributor of HVAC spare parts, operating as a trading brand under the privately-held Thermcross Group headquartered in Craponne, Auvergne-Rhône-Alpes. The company sells 100,000+ product references across 200-400+ equipment brands to sanitary and heating wholesalers (grossistes), with sister brand RGS serving the service technician and operator segment. Its catalog spans heating system components (boiler parts, burners, gas valves, ignition electrodes, heat exchangers), hydraulic, electrical, sanitary, air conditioning, and ventilation parts.

DIFF combines a multi-brand spare parts distribution operation with a proprietary private-label product line (DIFF and DIFF-ISOTHERM) offering OEM-equivalent replacement parts for major manufacturers including Frisquet, Saunier Duval, De Dietrich Chappée, and Vaillant. The EDITHERM digital platform provides 10,000 exploded views and nomenclature covering 35,000 models across 400+ brands, enabling technicians to identify and order correct parts. Operations are supported by an ISO 9001-certified quality management system and a B2B e-commerce platform offering real-time stock and pricing visibility with next-day delivery for orders placed before 18:00.

The business model is transactional B2B wholesale distribution, with professional pricing structured on an account basis requiring SIRET validation. Revenue mechanics are volume-based on unit/quantity orders, combining OEM parts resale with higher-margin DIFF private-label equivalents. The group is privately held with no external institutional or PE ownership disclosed, and operates primarily in France with broader European reach through the Thermcross platform.

DIFF firmographics

Firmographics
Name
DIFF
Legal name
Thermcross
Website
https://thermcross.fr
Company type
Private
Operating status
Operating
Headcount range
51–100 employees
Short description
DIFF is a French B2B wholesale distributor of HVAC spare parts under Thermcross Group, selling 100,000+ SKUs across 400+ brands to sanitary and heating wholesalers, with proprietary DIFF/ISOTHERM private-label parts and the EDITHERM exploded-view platform.
Ownership category
akta.pro rank

DIFF industry classification

Industry
Product category
HVAC Spare Parts Distribution
SIC
Refrigeration & Service Industry Machinery (3580), Wholesale-Misc Durable Goods (5090)
akta.pro primary industry
Home Improvement & DIY (Tools, Hardware, Paint) Distribution (CRAOAFAC)

Keywords

  • HVAC spare parts
  • Heating ventilation distribution
  • Boiler replacement parts
  • Plumbing wholesale supply
  • Spare parts catalog

Where DIFF is headquartered

Location

Headquarters

HQ city
Craponne
HQ country
France
HQ region
Europe

Offices1 record

Markets served

DIFF business model

Business model
GTM type
B2B
Offering type
Services
Cost components
Operations, Supply Chain, Personnel, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

  1. Spare parts distribution: DIFF generates revenue through the sale of HVAC spare parts to wholesale distributors. Products include both original manufacturer parts and DIFF private label equivalents across categories such as heating, plumbing, air conditioning, and ventilation. Revenue is transactional with pricing based on unit/quantity orders.

Pricing tiers

ModelBillingPrice
Transaction based/ take ratePay-as-you-goWholesale B2B pricing with account-based net prices

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

DIFF product offering

Product offering

Core offering

DIFF is a wholesale distributor of HVAC, heating, and sanitary spare parts, supplying over 100,000 SKUs from 400+ manufacturers across 35,000 equipment models to professional installers and resellers. The company complements genuine OEM parts with equivalent DIFF and DIFF-ISOTHERM branded alternatives, and supports buyers with the EDITHERM digital platform offering 10,000+ exploded technical views.

Product overview

DIFF is a wholesale-focused distributor brand under the Thermcross Group, operating alongside the RGS brand. DIFF offers a catalog of thousands of HVAC spare parts encompassing both original manufacturer components and DIFF/ISOTHERM-branded equivalents. The product portfolio covers major categories including heating system components (boiler parts, burners, gas valves, ignition electrodes), climate control and heat pump components, hot water heater parts, sanitary equipment, hydraulic components, electrical parts, and ventilation/fume extraction systems. Key product lines include ignition and ionization electrodes, safety valves, 3-way valves with motors, heat exchangers, sensors, burner gasket kits, and gas control boxes. The Editherm exploded-view service complements the parts catalog by providing technical diagrams for part identification. DIFF serves wholesalers and distributors, while the RGS sister brand targets service technicians and operators.

Differentiator

Problem solved

Functional benefit

Brands

  • DIFF: Distributor brand for wholesale sanitary and heating professionals, offering both manufacturer parts and DIFF-labeled products
  • RGS
  • DIFF - ISOTHERM
  • Editherm

Products and services

  • DIFF Brand Spare Parts Wholesale distribution of HVAC, heating, sanitary, and water-heater replacement parts from 400+ manufacturers spanning 100,000+ SKUs and 35,000 equipment models, sold to wholesale distributors and professional installers.
  • DIFF - ISOTHERM OEM-Equivalent private-label brand of replacement components for HVAC and sanitary equipment, offering an alternative to genuine OEM parts at typically lower cost.
  • EDITHERM Digital Platform Online platform providing 10,000+ exploded technical views to help installers and distributors identify the correct replacement part for specific equipment models.

Quantifiable outcome

  • 35,000 models covered through EDITHERM nomenclature
  • +2 more outcomes

Companies that use DIFF

Customer profile

Named customers2 records

Segments2 records

Ideal customer profiles2 records

DIFF technology and API

Technology

Technology focussed No

API detail

Has API
No
API docs
API detail

Core technology

AI maturity

App detail

Feature2 records

DIFF partnerships and signals

Strategic signal

Partnerships

Seven partnerships are on record, tiered core.

  • FrisquetcoreTechnology or IntegrationDIFF offers proprietary replacement parts for Frisquet heating equipment including electrode ignition kits (F3AA41248, F3AA40944, F3AA40839) and other spare components. Products are labeled and packaged under the DIFF brand while maintaining interchangeability with original Frisquet parts.
  • Saunier DuvalcoreTechnology or IntegrationDIFF provides comprehensive replacement parts for Saunier Duval equipment including safety valves, 3-way valves with motors (S1025500, S1020800, S1079100), control candles (05151600), ignition candles (0010043328), and plate heat exchangers for various Saunier Duval models including Themaplus, Isotwin, Isosplit, and Thema models.
  • VaillantcoreTechnology or IntegrationDIFF supplies replacement components for Vaillant systems including gas valves (0020268765), ignition electrodes (0020246709), sensors (0020143502), spark plugs, and burner joint kits (0020025929) for Vaillant air conditioning and heat pump units.
  • RIELLOcoreTechnology or IntegrationDIFF stocks 1,628+ spare parts for RIELLO heating equipment including burners (biofuel Millenium 40G3), control boxes (530N), pumps, filters, electrodes, expansion vessels, and electronic control boards. RIELLO is an Italian manufacturer renowned for gas, oil, and condensing boilers.
  • De Dietrich ChappéecoreTechnology or IntegrationDIFF provides replacement parts for De Dietrich Chappée equipment including mini accumulator expansion vessels (JJJ005658420) and other components.
  • ISOTHERM (Thermcross subsidiary)coreTechnology or IntegrationDIFF-Isotherm products are designed, manufactured, and tested by ISOTHERM (sister company within Thermcross Group). These parts offer guarantees of interchangeability and quality equivalent to original parts, providing proprietary alternatives for specific manufacturer equipment.
  • Editherm (Thermcross service)coreTechnology or IntegrationEditherm is the digital platform service provided by Thermcross Group, offering 10,000 exploded views and nomenclature for 400+ brands and 35,000 models. This proprietary platform enables precise parts identification for DIFF and RGS customers.

Scale indicators7 records

Recent moves5 records

Expansion highlights4 records

DIFF competitors and assessment

Company assessment

Market position

Competitive moat4 records

Key highlights6 records

Customer concentration

DIFF social profiles

Digital presence

DIFF compliance and trust

Trust signal

Compliance1 record

DIFF financial estimates

Financial estimate

Revenue estimate

Valuation estimate

DIFF leadership team

Management profile

Number of profiles

DIFF subsidiaries and ownership

Company hierarchy

Subsidiaries3 records

DIFF funding detail

Funding detail

Funding overview

Funding rounds

Investors

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

DIFF M&A and investment

M&A and investment

M&A

Investments

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

Frequently asked questions about DIFF

What does DIFF do?

DIFF is a wholesale distributor of HVAC, heating, and sanitary spare parts, supplying over 100,000 SKUs from 400+ manufacturers across 35,000 equipment models to professional installers and resellers. The company complements genuine OEM parts with equivalent DIFF and DIFF-ISOTHERM branded alternatives, and supports buyers with the EDITHERM digital platform offering 10,000+ exploded technical views.

Is DIFF a public or private company?

DIFF is a private company. It is classified as unknown and is currently operating.

When was DIFF founded?

DIFF was founded in -1. It employs 51 to 100 people.

Where is DIFF based?

DIFF is headquartered in Craponne, France, in the Europe region.

How does DIFF make money?

One revenue line is on record: spare parts distribution.

Does DIFF have an API?

No public API is recorded for DIFF.

What industry is DIFF in?

DIFF's product category is HVAC Spare Parts Distribution. Its primary akta.pro industry code is CRAOAFAC, Home Improvement & DIY (Tools, Hardware, Paint) Distribution. Its SIC code is 3580.

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