HS Tarm

What HS Tarm does

HS Tarm A/S is a privately held Danish heating solutions provider founded in 1927 and headquartered in Tarm, Western Denmark (Jutland). The company distributes and supports a complete heating portfolio for residential, commercial, agricultural, and industrial customers, including air-to-water and air-to-air heat pumps (MDV Nature, MDV Mars, Block Alezio, Block Strateo, LVG2, HPI), biomass boilers (TPK HS20/35, Bonus, Solo Innova), gas boilers, oil boilers, hot water and buffer storage tanks, and the HS SunSystem solar-plus-battery offering. Most core products are sourced through OEM partnerships — notably Midea/MDV for heat pumps, Hargassner for large biomass systems, and De Dietrich/BDR Thermea for the Block Strateo platform — with HS Tarm adding local certification, training, project sales, and after-sales support.

The business is operated as a channel-led distribution model. HS Tarm does not sell directly to end consumers; instead, it sells exclusively through a network of 150-158 certified VVS installer partners across Denmark, supported by regional sales consultants (Nordjylland, Syddanmark, Sjælland Nord), a dedicated installer webshop (Mit BAXI), a free heat pump sizing calculation tool for lead generation, and a custom service app for quality assurance and installation feedback. Recurring revenue comes from a 12-year service subscription (3,400 DKK/year standard, 5,000 DKK/year for MDV Mars 26/30/35) covering annual inspection, free service visits, spare parts, and priority heating-season support.

HS Tarm was acquired by England's BAXI Group in 1993, renamed BAXI A/S in 1999, and became part of BDR Thermea following the 2009 BAXI/DeDietrich Remeha merger. In September 2010, Hans Martin Sørensen repurchased the business and renamed it HS Tarm A/S on April 1, 2011, restoring Danish family ownership. The company has held ISO 9001 quality certification since 1991, operates a service organization with 5 technicians (target 10 by 2025), and markets a hybrid value proposition emphasizing R290 natural refrigerant compliance with upcoming EU F-Gas rules, high flow temperatures up to 75°C for older radiator-based homes, ultra-quiet operation (53-59 dB), and up to 80% household energy self-sufficiency through HS SunSystem.

Name

HS Tarm

Legal name

HS Tarm A/S

Website

https://hstarm.dk

Company type

Private

Founded year

1927

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

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)

SIC

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

akta.pro primary industry

Boilers, Furnaces & Process Heating Equipment (IMAHAKAD)

akta.pro secondary industries

Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC), Chillers, Boilers & Central Plant Operations (BPABACAG), Heat Pump Repair & Maintenance (HSAOAHAD), Boiler & Hydronic Heating Repair & Service (HSAOAHAG)

Keywords

• Heat pump solutions
• Biomass boiler systems
• Gas condensing boilers
• Solar energy storage
• Residential heating equipment

Headquarters

HQ city

Tarm

HQ country

Denmark

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Heat Pump Sales: Sale of heat pumps (air-water, air-air) including the MDV Nature and Mars series, along with indoor units (HS IDU) and accessories. Revenue generated from product sales to installer network.
2. Biomass Boiler Sales: Sale of wood pellet boilers (TPK series), combination boilers (DBK/Scandpell), and wood boilers (Bonus, Solo Innova) to residential and commercial customers.
3. Gas and Oil Boiler Sales: Sale of condensing gas boilers (WGB, WMS series) and oil boilers for residential and commercial heating.
4. Storage Tanks and Accessories: Sale of hot water tanks, buffer tanks, and storage tanks in various sizes (120L to 1500L).
5. Solar Energy Systems: Sale of HS SunSystem solar cell and battery systems for residential energy independence.
6. 12-Year Service Subscription: Annual subscription service (3,400 DKK/year for standard heat pumps, 5,000 DKK/year for MDV Mars 26/30/35) covering annual inspections, free service visits, and spare parts. Creates recurring revenue stream.
7. Service and Support: Professional service, installation support, and technical consulting for heating systems.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels8 records

Core offering

HS Tarm A/S designs, distributes, and services a complete portfolio of heating solutions for Danish homes and businesses, including heat pumps (air-to-water, air-to-air, ground source), biomass boilers (wood pellet and wood-fired), condensing gas boilers, oil boilers, storage tanks, and solar/battery systems. The company sells exclusively through a network of 150+ certified installer partners across Denmark and provides a 12-year service subscription covering annual inspection, spare parts, and priority support.

Product overview

HS Tarm offers a comprehensive portfolio of heating solutions for both residential and commercial customers in Denmark. The product range centers on heat pumps (air-to-water and air-to-air systems including MDV Nature, MDV Mars, Block Alezio, LVG2, HPI, and Block Strateo), biomass boilers (wood pellet boilers TPK HS20/35, wood boilers Bonus and Solo Innova, combination boiler DBK/Scandpell), gas boilers (wall-mounted WGB and WMS series), and hot water/buffer storage tanks. The company also provides solar energy systems through HS SunSystem for photovoltaic and battery storage solutions. Add-on modules include indoor units (HS IDU), bypass units, and buffer tanks. Hargassner biomass systems address larger commercial and industrial installations up to 2,500 kW. HS Tarm provides complementary services including a 12-year service subscription, free heat pump calculations, and nationwide installer network with 150+ installers across Denmark. The company has nearly 100 years of experience delivering complete heating solutions since 1927.

Differentiator

Problem solved

Functional benefit

Products and services

• MDV Nature Air-to-water monobloc heat pump for residential heating using R290 (propane) natural refrigerant with a GWP of 3. Features integrated 110-liter hot water tank and 55-liter buffer tank, high flow temperatures up to 75°C, SCOP values among the best in class, and sound level of 53-59 dB(A). Suitable for replacement of oil boilers in older homes with radiators.
• MDV Mars R290 (propane) air-to-water heat pump for larger buildings and commercial applications, available in 30 kW and 35 kW models. Supports cascade operation for larger buildings and delivers high flow temperatures with high efficiency.
• Block Alezio-4 S V200 Split air-to-water heat pump with high efficiency. Wall-mounted indoor unit connected to outdoor unit.
• Alezio-4 S Split air-to-water heat pump, indoor unit version of the Alezio series.
• Block Strateo De Dietrich heat pump with compact design enabling cabinet installation. Features integrated 190-liter hot water tank, low sound pressure of only 22 dB, and construction from recyclable materials to limit carbon footprint. Launched in Denmark in 2022.
• LVG2 Air-to-water monobloc heat pump available in 12 kW and 25 kW models with compact monobloc design for easy installation.
• HPI Air-to-Water Heat Pump Air-to-water heat pump for residential and commercial heating solutions, including the 22kW HPI model.
• LC-48T Air-to-Air Heat Pump Air-to-air heat pump for heating and cooling of indoor spaces. Functions as air conditioning in summer.
• MSA C Series Air-to-Air Heat Pumps (MSA 12 C / MSA 18 C / MSA 24 C) Air-to-air heat pump series for efficient heating and cooling of indoor spaces, available in 12, 18, and 24 capacities.
• TPK HS Wood Pellet Boilers (TPK HS20 / TPK HS35) Wood pellet boilers supporting internet monitoring via ecoNET module. TPK HS20 for smaller installations, TPK HS35 for larger capacity needs.
• TPK24/Scandpell Wood Pellet Boiler Wood pellet boiler combining TPK24 and Scandpell pellet heating capabilities.
• DBK/Scandpell Combination Boiler Combination boiler in HS Tarm's product program since 2011, combining pellet heating capabilities.
• Bonus Wood Boiler Series Wood boiler series including Bonus Light, Bonus 30 STD MK2, and Bonus 30 LC MK2 variants. LC models support internet monitoring via ecoNET.
• Solo Innova Wood Boiler Series Wood boiler series with multiple capacity options (30 STD MK2, 30 LC MK2, 50 STD MK2, 50 LC MK2). LC variants support internet monitoring via ecoNET.
• WGB-K.1 Gas Boiler (22/28 kW) Wall-mounted gas boiler with integrated hot water production for residential heating and domestic hot water.
• WMS EVO Gas Boiler Wall-mounted gas boiler with automatic combustion regulation, ready for biogas when it becomes available.
• WGB.1 and WGB 50-110 I Gas Boilers Wall-mounted gas boilers from the Solo series for residential and light commercial heating applications.
• HS SunSystem (Solar Cells and Battery) Solar cell and battery system that can make households up to 80% self-sufficient. Features intelligent control that regulates based on Nord Pool electricity prices, 24-hour weather forecasts, and household consumption patterns. Includes 10-year warranty on key products.
• Hargassner Biomass Systems Austrian-manufactured biomass boiler systems for larger installations up to 330 kW single units and up to 2,500 kW combined systems. Supports wood chips, pellets, and other biomass fuels for hotels, commercial, horticultural, and industrial applications.
• Luftradiator FCF (Air Radiator) Air radiator for use in heating systems as a heat emitter.
• Electric Boilers (Mobil elkedel 9 kW / MP 6 elkedel) Electric boilers including a portable 9 kW model (Mobil elkedel 9 kW) and the MP 6 model for applications requiring electric heating.
• 12-Year Service Subscription Annual service subscription covering heat pumps sold by HS Tarm. Includes annual inspection, free service visits, preventive maintenance, original spare parts, and nationwide service with priority support during heating season (October–April, 8am–8pm all days). Priced at 3,400 DKK annually (5,000 DKK for MDV Mars 26/30/35) including VAT for a 12-year commitment.

Quantifiable outcome

• Reduce heating costs by up to 50%
• +5 more outcomes

Named customers14 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

Integration4 records

Feature7 records

Partnerships

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

• GS VarmeteknikcoreChannel Partner/ Reseller/ DistributorKey installer partner in the Sahl area. Multiple customer case studies featuring GS Varmeteknik installations including HPI heat pumps, MDV Nature, and large systems. Demonstrates ongoing collaborative projects across residential and agricultural segments.
• Daugaard Energi ApscoreChannel Partner/ Reseller/ DistributorInstallation partner for heat pump projects. Featured in customer cases including the Ålekroen LVG2 25kW installation.
• Skærbæk ApScoreChannel Partner/ Reseller/ DistributorKey installer partner on Møn. Multiple successful installations of MDV Nature heat pumps. Handles both heat pumps and solar solutions for customers.
• OK Energy SolutionscoreImplementation/ SI/ Consulting PartnerEnergy consulting partner providing energy calculations and handling government subsidy applications (Energistyrelsen). Collaborated on multiple commercial projects including CRH Products and Erik Jacobsen A/S installations.
• Dam & HovgaardcoreChannel Partner/ Reseller/ DistributorInstaller partner for Hjarbæk Fjord Golfcenter project. Multiple years of collaboration on green projects including ground source and air/air installations.
• Nordvestjysk EnergiteknikcoreChannel Partner/ Reseller/ DistributorInstaller of Denmark's first Block Strateo heat pump. Certified refrigeration technician with extensive heat pump experience.
• Fly Larsen VVScoreChannel Partner/ Reseller/ DistributorVIP event participant who identified MDV Mars potential for customers. Installed MDV Mars 35kW at Erik Jacobsen A/S.
• Nordsjællands VVSminorChannel Partner/ Reseller/ DistributorInstalled 20 WMS EVO gas boilers with Aqua Stora Compact tanks in Humlebæk elderly housing complex.
• BioEnergi Service ApScoreChannel Partner/ Reseller/ DistributorInstalled HPI 22kW heat pump + TPK HS35 pellet boiler at Bosted in Slangerup. Specializes in biomass heating solutions.
• Midt-Jysk VarmeserviceminorChannel Partner/ Reseller/ DistributorInstalled LVG2 12kW heat pump for office building replacing gas boiler.
• SoftControlcoreTechnology or IntegrationDeveloped online monitoring system for HS SunSystem solar installations. Monitors energy production, CO2 savings, and alerts for operational disruptions. Distributor of Solar-Log professional monitoring systems.
• Erhvervshus MidtjyllandcoreImplementation/ SI/ Consulting PartnerBusiness development partner that assisted with service app development. Connected HS Tarm with Innobooster funding for app development. Provided ongoing consulting and project support.
• BDR Thermea GroupmajorStrategic or Co-development PartnerParent company after 2009 merger of BAXI Group with DeDietrich Remeha. HS Tarm was previously BAXI A/S before being repurchased by Danish management in 2010. Part of major European heating solutions group.
• HargassnercoreTechnology or IntegrationAustrian manufacturer of biomass heating systems (pellets, chips, wood) up to 2,500 kW. Distributed through HS Tarm for larger commercial and industrial installations.
• De Dietrich (BDR Thermea)coreTechnology or IntegrationParent group brand. Block Strateo heat pump is a De Dietrich product distributed through HS Tarm in Denmark.
• Midea (MDV)coreTechnology or IntegrationChinese manufacturer of MDV brand heat pumps (Nature, Mars series). HS Tarm distributes these products in Denmark with local support, training, and service.

Scale indicators11 records

Recent moves8 records

Expansion highlights6 records

Broad incumbents

• Bosch Thermotechnology: Global heating and hot-water brand offering heat pumps, boilers, and integrated heating systems across Europe. Competes head-to-head with HS Tarm in the Danish heat pump and boiler market but operates as a broad portfolio player rather than a Denmark-focused specialist.
• BDR Thermea Group: European heating group formed by the 2009 merger of BAXI Group and De Dietrich Remeha. Prior owner of HS Tarm (when it operated as BAXI A/S) and continued strategic relationship via De Dietrich brand products (e.g., Block Strateo) distributed by HS Tarm. Could be both supplier and indirect competitor.
• Vaillant Group: European heating technology group offering heat pumps (aroTHERM), gas boilers, and hybrid systems across multiple European markets. Competes with HS Tarm in Denmark's residential heat pump transition but is significantly larger and operates multi-country.
• Viessmann Climate Solutions: German manufacturer of heating, industrial, and refrigeration systems. Comparable product mix (heat pumps, biomass, gas/oil boilers, storage tanks) and overlapping Danish installer channel, but with a much broader European presence and deeper direct-to-consumer brand building.
• Daikin Europe: Global HVAC and heat pump leader with Altherma heat pump family. Competitor in the Danish residential heat pump market with much greater R&D budget, manufacturing scale, and direct-to-consumer marketing reach.

Others

• Danfoss Climate Solutions: Danish-headquartered supplier of heating components, controls, and district energy solutions. Adjacent ecosystem participant to HS Tarm's business, supplying components into heating installations and a fellow Danish industrial peer in the broader thermal management ecosystem.
• OK Energy Solutions: Danish energy consulting and installation partner that collaborates with HS Tarm on commercial projects and government subsidy applications. Adjacent ecosystem participant rather than direct competitor; illustrates HS Tarm's reliance on a thin layer of specialist partners in Denmark's heating value chain.

Emerging players

• Hargassner Wärmetechnik: Austrian manufacturer of biomass heating systems (pellets, chips, wood) up to 2,500 kW. Source product currently distributed through HS Tarm in Denmark for larger commercial and industrial applications — illustrates the partial overlap where supplier-publisher relationships can shift to direct competition.

Direct peers

• Midea (MDV) Heating & Ventilation: Chinese manufacturer of the MDV Nature and MDV Mars heat pumps that HS Tarm distributes in Denmark. While not a direct competitor in Denmark today, Midea's expanding European ambitions and scale advantages could eventually position it to bypass distributors like HS Tarm in key markets.
• NIBE Energy Systems: Swedish manufacturer of heat pumps and heating solutions serving primarily Nordic residential markets. Highly comparable to HS Tarm in product category (air-source and ground-source heat pumps), customer base (homeowners replacing oil/gas), and channel model (installer-driven distribution), but operates at much larger scale and is publicly listed.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/TarmHS
• Facebookfacebook.com/HstarmBaxi
• LinkedInlinkedin.com/company/hs-tarm-a-s

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 HS Tarm