Bulex

What Bulex does

Bulex is a Belgian provider of residential heating, cooling, and domestic hot water systems, headquartered in Drogenbos and operating under the Vaillant Group corporate umbrella. The company was founded around 1930 and has built over 90 years of brand presence in the Belgian market, serving both Flemish and Walloon regions through a dedicated installer network (Xpertdealer) and direct consumer channels.

The product portfolio spans gas condensing boilers (Thema Condens A/AS, ThemaFast Condens, ThemaTek, ThermoMaster, ThermoMaster AS), the GeniaAir heat pump family (monobloc, split, R32 variants), VivAir air conditioning systems, hybrid GeniaSet solutions, storage and electric water heaters (WE/FE, FEW, SDN, SDC, MagnaAqua), solar thermal systems (HelioSet, FES), ventilo-convectors (GeniaFan), and a unified smart control lineup (ExaControl, MiGo, MiPro Sense, MiSet, ExaMaster). Core technologies include FlameFit continuous combustion analysis with automatic gas adjustment, monobloc and split air-to-water heat pump architectures, and enameled-steel storage tanks with magnesium anode protection. The portfolio is positioned as future-proof heating and cooling, explicitly addressing the energy transition through heat pumps, hybrids, and solar integration.

Bulex makes money through three primary streams: one-time equipment sales of boilers, heat pumps, air conditioning, water heaters, and controls; installation services delivered via certified Xpertdealer installers; and recurring maintenance contracts (gasketel and warmtepomp onderhoudsformules) managed through the myBULEX Web service platform. Go-to-market is a dual-track model: the bul-ex.be consumer site provides product configurators, an installer finder, and quote requests, while bul-ex.pro serves professional installers with technical documentation, training, and account management. Extended warranty programs (FlameFit 3-year, GeniaAir Classic 5-year) require registration through Vaillant Group infrastructure, tying the installed base to long-term service relationships within Belgium only.

Name

Bulex

Legal name

Bulex

Website

https://bulex.be

Company type

Private

Founded year

1930

Operating status

Operating

Headcount range

251–500 employees

Short description

Bulex is a Belgian provider of residential heating, cooling, and hot water systems serving consumers and certified installers across Belgium. Operating under Vaillant Group, it sells gas boilers, heat pumps, air conditioning, water heaters, and smart controls through its Xpertdealer network.

Ownership category

akta.pro rank

Product category

Residential Heating, Cooling, and Hot Water Equipment

NAICS

Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (3334), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), 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), Wholesale-Hardware & Plumbing & Heating Equipment & Supplies (5070)

akta.pro primary industry

Residential HVAC System Installation (Furnace/AC/Heat Pump) (HSAOAGAA)

akta.pro secondary industries

Hydronic/Baseboard Radiant Heating Service (HSAOACAE), Water Heating & Treatment Appliance Retail (Water Heaters, Water Softeners, Filtration Systems) (CRACACAF)

Keywords

• Residential heating equipment
• Gas condensing boilers
• Air-to-water heat pumps
• Domestic hot water
• Smart heating controls

Headquarters

HQ city

Drogenbos

HQ country

Belgium

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Heating and Cooling Equipment Sales: Sale of gas boilers, heat pumps, air conditioning units, boilers, ventilo-convectors, bathroom heaters, and controls/thermostats to consumers and professionals through installer network.
2. Installation Services: Products are installed by certified Bulex installers (Xpertdealers) who provide professional installation services to end customers.
3. Maintenance and Service Contracts: Ongoing maintenance services and service contracts for heating systems, including gasketel and heat pump maintenance formulas. myBULEX Web platform for service management.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Bulex designs, manufactures, and distributes a complete portfolio of future-proof residential heating, cooling, and domestic hot water equipment, including gas condensing boilers, air-to-water heat pumps, air conditioning units, hybrid systems, storage and electric water heaters, ventilo-convectors, solar thermal systems, and connected smart thermostats. Equipment is sold primarily through a Belgium-wide certified Xpertdealer installer network that delivers professional installation and after-sales service, and the company additionally offers recurring maintenance contracts, repair services, heating audits, gas conversion, and warranty management through the myBULEX Web platform. Separate consumer and professional installer portals support the dual B2C/B2B go-to-market approach.

Product overview

Bulex offers a comprehensive portfolio of future-proof heating, cooling, and domestic hot water solutions for residential buildings. The product range centers on five main categories: (1) Gas condensing boilers including Thema Condens A/AS, ThemaFast Condens, ThemaTek, ThermoMaster, and ThermoMaster AS for efficient gas-fired heating; (2) Heat pumps and air conditioning featuring the GeniaAir family (Classic, Max, Split, Split R32, Tek), VivAir (Lite, Multi, Max), and hybrid GeniaSet systems; (3) Hot water production via storage boilers (WE/FE, FEW, FEWS), electric boilers (4000/2, SDN, SDC), heat pump water heaters (MagnaAqua), point-of-use heaters (RBE/RBK), and gas water heaters (Opalia, LineaAqua, SafiraAqua, AvantiaAqua); (4) Ventilo-convector fans (GeniaFan, SDC/SDN) for climate distribution; and (5) Smart controls including ExaControl, MiGo, MiPro Sense, MiSet, and ExaMaster. Bulex also offers hybrid systems (IsoTwin Condens), solar thermal solutions (HelioSet, FES), water softeners (Bsoft), and related services including maintenance, repairs, heating audits, and gas conversion through their myBULEX Web platform. Products are designed to work as integrated systems, with smart controls enabling automation and energy-efficient operation.

Differentiator

Problem solved

Functional benefit

Products and services

• WE/FE Storage Boiler Storage water heater with enameled steel tank protected by a magnesium anode for durability and polyurethane foam thermal insulation. WE models are wall-mounted vertical units, FE models are floor-standing; capacities range from 79 to 294 liters. For residential consumers needing domestic hot water storage.
• Thema Condens A Wall-hung gas condensing boiler for heating and domestic hot water production, featuring FlameFit technology for continuous combustion analysis and automatic gas adjustment. For residential consumers.
• Thema Condens AS Floor-standing gas condensing boiler designed for heating only, compatible with external boilers for domestic hot water production, equipped with FlameFit technology. For residential consumers.
• ThemaFast Condens Fast-response gas condensing boiler for efficient heating. For residential consumers needing responsive heating performance.
• ThemaTek Wall-hung gas boiler for heating applications. For residential consumers with conventional gas heating needs.
• ThermoMaster Traditional gas boiler with pneumatic burner and fixed combustion settings. For residential heating applications.
• ThermoMaster AS Floor-standing gas boiler for natural gas only, featuring LCD display with simple selection keys. For residential consumers.
• GeniaAir Classic Monobloc air-to-water heat pump providing heating, cooling, and domestic hot water production with a flexible new installation concept and an extended 3-year warranty on top of the 2-year factory warranty (5 years total). For residential consumers seeking all-in-one heat pump solutions.
• GeniaAir Max High-capacity monobloc air-to-water heat pump for larger residential heating and cooling demands. For residential consumers with higher load requirements.
• GeniaAir Split Split configuration air-to-water heat pump enabling flexible separation of indoor and outdoor units. For residential consumers with installation constraints.
• GeniaAir Split R32 Split air-to-water heat pump using R32 refrigerant for improved environmental performance. For residential consumers prioritizing lower-GWP solutions.
• GeniaAir Tek Advanced air-to-water heat pump with enhanced technical specifications. For residential consumers requiring upgraded performance.
• VivAir Lite Wall-mounted mono-split air conditioning unit providing single-room cooling and heating. For residential consumers.
• VivAir Multi Multi-split air conditioning system connecting multiple indoor units to a single outdoor unit. For residential consumers needing multi-room climate control.
• VivAir Max High-capacity air conditioning unit for larger residential spaces. For residential consumers with higher cooling and heating loads.
• MagnaAqua Thermodynamic Water Heater Heat pump water heater for efficient domestic hot water production using ambient air energy. For residential consumers seeking energy-efficient hot water.
• GeniaSet Hybrid Heat Pump System Combined heat pump system integrating heating, cooling, and hot water production for residential properties. For consumers seeking hybrid solutions.
• GeniaSet Split Hybrid Heat Pump Split configuration hybrid heat pump system for flexible installation. For residential consumers with installation constraints.
• GeniaSet Tek Hybrid Heat Pump Advanced hybrid heat pump system with technical enhancements. For residential consumers needing upgraded hybrid performance.
• GeniaFan Ventilo-Convector Wall and ceiling-mounted fan coil unit for efficient heating and cooling distribution. For residential climate distribution applications.
• IsoTwin Condens Atmospheric Boiler Atmospheric gas floor-standing boiler for heating and hot water production. For residential consumers.
• 4000 & 4000/2 Electric Storage Water Heaters Electric storage water heaters available in wall-mounted (4000/2) and floor-standing (4000) configurations. For residential domestic hot water needs.
• SDN Electric Storage Water Heater Electric storage water heater in wall-mounted and floor-standing models with various capacities. For residential consumers.
• SDC Electric Storage Water Heater Wall-mounted and floor-standing electric storage water heaters. For residential domestic hot water.
• RBE/RBK Point-of-Use Electric Water Heater Point-of-use electric water heaters in various capacities for sink or wall mounting. For residential consumers needing localized hot water.
• FEW ME Storage Water Heater Floor-standing storage water heater with enameled steel tank. For residential consumers.
• FEW MR Storage Water Heater Floor-standing storage water heater with mixed heating/electric operation. For residential consumers.
• FEWS Solar-Integrated Storage Water Heater Storage water heater with solar integration capability. For residential consumers interested in solar hot water.
• Opalia Gas Water Heater Gas bath heater and water heater for domestic hot water production. For residential consumers.
• LineaAqua Water Heater Modern-design gas water heater for domestic hot water. For residential consumers.
• SafiraAqua Water Heater Water heater for domestic hot water production. For residential consumers.
• AvantiaAqua Water Heater Water heater for domestic hot water production. For residential consumers.
• ExaControl E7C/E7R C Smart Thermostat Smart room thermostat and control for heating system management with scheduling capabilities. For residential consumers using Bulex heating systems.
• ExaControl Select Smart Thermostat Advanced smart thermostat with enhanced control features for heating systems. For residential consumers.
• MiGo Link Connected Thermostat Connected thermostat with app integration for remote heating control and monitoring. For residential consumers.
• MiGo Select Smart Thermostat Smart thermostat with selectable control modes for heating optimization. For residential consumers.
• MiPro Sense Smart Thermostat Advanced smart thermostat with sensing capabilities for optimized heating control. For residential consumers.
• MiSet Smart Heating Control Smart heating control system with zone management capabilities. For residential consumers.
• ExaMaster Control Module Control module for managing multiple heating zones and systems. For residential consumers with zoned heating.
• HelioSet GHSD 8 Solar Thermal System Solar thermal system for drain-back operation, harvesting solar energy for water heating. For residential consumers using solar hot water.
• FES Solar Integration Unit Solar integration unit connecting solar thermal systems to the heating setup. For residential consumers integrating solar with existing heating.
• VEQ Heat Pump Heat pump unit for heating and hot water production. For residential consumers.
• ExaBasic Entry-Level Thermostat Basic thermostat for entry-level heating systems. For residential consumers needing straightforward control.
• Bsoft Water Softener Water softening system to protect plumbing and improve water quality. For residential consumers.
• Maintenance Contracts (Gas Boiler and Heat Pump Formulas) Recurring maintenance contracts covering scheduled service for Bulex gas boilers (gasketel) and heat pumps (warmtepomp), managed through the myBULEX Web platform. For residential consumers and installer-managed end customers.
• Heating Repair Service Repair service for Bulex heating systems requested via the myBULEX Web platform intervention request flow. For residential consumers.
• Heating Audit (Verwarmingsaudit) Professional heating audit assessing the condition and efficiency of residential heating installations, with recommendations for upgrades or maintenance. For residential consumers and homeowners seeking to optimize their heating system.
• Gas Conversion Service (Gasomschakeling) Conversion service for changing heating appliances between gas types (for example natural gas conversion). For residential consumers transitioning gas supply.

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators1 record

Recent moves5 records

Expansion highlights6 records

Broad incumbents

• Vaillant: German parent of Bulex and one of Europe's largest residential heating brands. Directly comparable as a boiler and heat pump manufacturer with similar product categories, technology platforms, and installer-driven distribution model; Bulex operates as the Belgian market vehicle for many Vaillant-developed technologies.
• Bosch Thermotechnology: Bosch's residential and commercial HVAC division selling boilers, heat pumps, and hybrid systems across Europe. Comparable as a broad HVAC incumbent with global R&D scale, competing in the Belgian market against Bulex in both gas-fired and electric heating categories.
• Viessmann: German premium residential and commercial heating manufacturer with strong heat pump portfolio. Directly competes with Bulex in Belgian residential projects and renovation segments, with comparable installer-channel distribution and comparable premium positioning on condensing boilers and heat pumps.
• Daikin: Global HVAC leader with strong heat pump and air conditioning presence in Belgium. Comparable as a broad incumbent with deeper R&D investment, particularly relevant to Bulex's VivAir AC line and GeniaAir heat pump family where Daikin's global scale and refrigerant expertise set competitive benchmarks.

Direct peers

• Remeha: Dutch-origin residential heating brand with strong presence in the Belgian and Benelux markets. Directly competes with Bulex across gas condensing boilers, heat pumps, and hybrid systems, sold through a comparable certified-installer distribution model in the same Flemish/Walloon geographies.
• Saunier Duval: Vaillant Group sister brand operating in Belgian and European residential heating markets. Shares the same corporate parent and comparable product portfolio (gas boilers, heat pumps, controls), competing head-to-head with Bulex for installer mindshare and Belgian homeowner accounts.
• Atlantic (Groupe Atlantic): French-origin residential heating, hot water, and air conditioning manufacturer with strong Belgian and Benelux presence. Directly competes with Bulex across heat pump water heaters (californiens), boilers, and split AC systems sold via installer channels in the same geographies.
• Ariston Group: Italian residential heating and water heating multinational with European footprint including Benelux. Directly comparable across condensing boilers, heat pump water heaters, and smart controls, with similar distribution model and overlapping customer segments in residential replacement and new-build.
• Junkers Bosch (Bosch Home Comfort): Bosch's residential heating brand historically strong in Belgium and Western Europe. Directly competes with Bulex on gas condensing boilers, water heaters, and (newer) heat pump offerings through a similar installer network and aftermarket service model.

Regional players

• Nefit (Bosch): Dutch residential heating brand (now part of Bosch Home Comfort) historically dominant in Netherlands and active in Flemish Belgium. Comparable across boiler and water heater lines sold through certified installers, with overlapping customer base in Dutch-speaking Belgian regions.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UC-hggv6U5WQEn7lYwc22pkQ
• Facebookfacebook.com/BulexBelgium
• Instagraminstagram.com/bulex_be

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 Bulex