What CTC does

CTC, founded in 1923 in Sweden by Gunnar Tellander and now operating as part of Enertech AB headquartered in Ljungby, Sweden, manufactures heat pumps and integrated heating solutions for residential and commercial customers across Europe. The company's core portfolio comprises ground-source heat pumps (CTC GSi 600, EcoPart i600M, EcoPart 600M/400, EcoHeat 400), air-to-water heat pumps (CTC EcoAir 700M/600M/C100, EcoSplit), indoor modules (EcoZenith i360, EcoZenith i555 Pro), and complementary products including domestic hot water heat pumps, solar thermal collectors, oil and gas condensing boilers, and burners. Technical differentiation centers on the proprietary EnergyFlex integration platform that connects multiple heat sources to a single heat pump, variable-speed inverter compressor technology achieving SCOP of 5.5, climate-friendly R290 refrigerant adoption, and up to 10-unit cascade capability for large properties.

Name

CTC

Legal name

Enertech AB

Website

https://ctcag.ch

Company type

Private

Founded year

1923

Operating status

Operating

Headcount range

51–100 employees

Short description

CTC, a Swedish heat pump manufacturer founded in 1923 (part of Enertech AB), produces ground-source and air-to-water heat pumps plus indoor modules, selling exclusively through certified installer networks to residential, commercial, and industrial customers across 10 European countries.

Ownership category

akta.pro rank

Product category

Heat Pump Manufacturing

NAICS

Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Heating Equipment (except Warm Air Furnaces) Manufacturing (333414)

SIC

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

akta.pro primary industry

Heat Pumps (Air/Water/Ground Source) (IMAHAKAF)

akta.pro secondary industries

Boilers, Furnaces & Process Heating Equipment (IMAHAKAD), Residential HVAC System Installation (Furnace/AC/Heat Pump) (HSAOAGAA)

Keywords

• Heat pump manufacturing
• Ground source heating
• Air-to-water heat pumps
• Hydronic heating equipment
• HVAC systems

Headquarters

HQ city

Buchs

HQ country

Switzerland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Heat Pump Hardware Sales: CTC generates revenue primarily from the sale of manufactured heat pump products including ground-source heat pumps (GSi 600, EcoPart 400/600M series), air-to-water heat pumps (EcoAir 400/600M/700M/C100 series), indoor modules (EcoZenith i360, EcoZenith i555 Pro), and accessories. Products are sold exclusively through certified installer and dealer partners, not directly to end consumers.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

CTC manufactures and sells a comprehensive portfolio of heat pumps and heating equipment, including ground-source heat pumps, air-to-water heat pumps, indoor modules, control systems, solar thermal collectors, domestic hot water heat pumps, oil/gas condensing boilers, and burners. Products are manufactured in Ljungby, Sweden, and sold exclusively through a certified installer and dealer network across European markets, including Switzerland, Sweden, Norway, Finland, France, Benelux, Poland, Germany, and the UK. The proprietary EnergyFlex system enables integration of multiple heat sources into a single heat pump installation.

Product overview

CTC (a Swedish company founded in 1923, part of Enertech AB) offers a comprehensive portfolio of heating solutions with its core products organized around three main heat pump categories: Ground Source Heat Pumps (CTC GSi 600, CTC EcoHeat 400, CTC EcoPart i600M, CTC EcoPart 600M, CTC EcoPart 400/400 Pro), Air-to-Water Heat Pumps (CTC EcoAir 700M, CTC EcoAir 600M, CTC EcoAir C100, EcoSplit), and Indoor Modules (CTC EcoZenith i360, CTC EcoZenith i555 Pro). Supporting products include domestic hot water heat pumps (CTC 3131), solar thermal systems (FKF collectors, SolBox kits), burners (oil/gas), and condensing boilers (EcoSwiss, GiegaStar Plus). The EnergyFlex platform enables integration of multiple heat sources into a unified system. Control is managed through CTC EcoLogic controllers and the myUplink mobile app with smart home integration (Alexa, Google Home, Smartgrid). Products are manufactured in Ljungby, Sweden, and carry certifications including D-A-CH quality seal, EHPA label, and SVGW approval.

Differentiator

Problem solved

Functional benefit

Brands

• EnergyFlex: Smart system allowing connection of multiple heat sources to CTC heat pumps including solar, pools, wood boilers, and other energy sources

Products and services

• CTC GSi 600 Ground Source Heat Pump Variable-speed ground-source heat pump with SCOP of 5.5, up to 85% energy savings, 300+ liters hot water production, 34 dB(A) noise level, and built-in internet connectivity with Smart Home preparation. For residential properties replacing electric, oil, or wood heating.
• CTC EcoHeat 400 Ground Source Heat Pump Compact ground-source heat pump system for heating and domestic hot water with D-A-CH quality seal and EHPA label. Features quiet scroll compressor, stainless steel plate heat exchanger, color touchscreen, integrated safety valves, and soft starter.
• CTC EcoPart i600M Ground Source Heat Pump Compact variable-speed ground-source heat pump with adaptive hot water production, SCOP 5.5, 2-16 kW power range, integrated touchscreen control, and capability to control up to 9 additional heat pumps.
• CTC EcoPart 600M Ground Source Heat Pump Modulating brine-to-water heat pump with built-in high-efficiency brine and buffer charging pumps, 65°C flow temperature, A+++ energy efficiency class, and 3-16 kW modulating range.
• CTC EcoPart 400 Ground Source Heat Pump Compact brine-to-water heat pump for heating operation with quiet scroll compressor, soft-start function, capability to cascade up to 10 units, 6-17 kW available in six sizes.
• CTC EcoPart 400 Pro/Basic Ground Source Heat Pump Compact GIERSCH brine-to-water heat pump with EcoLogic Pro control, soft start, safety valve, dirt filter, R407C refrigerant, and maximum flow temperature of 63°C.
• CTC EcoAir 700M Air-to-Water Heat Pump Modulating air-to-water heat pump with R290 climate-friendly refrigerant for heating, cooling, and hot water. Variable speed, A+++ energy class, 46-47 dB(A) noise level, SCOP 5.0-5.04, operates down to -25°C. Available in three sizes (708M, 712M, 720M).
• CTC EcoAir 600M Air-to-Water Heat Pump Modulating air-to-water heat pump with integrated hot gas defrosting, variable speed compressor for optimal efficiency, reduced noise via special compressor insulation, R407C refrigerant.
• CTC EcoAir C100 Air-to-Water Heat Pump Cost-efficient modulating air-to-water heat pump with R290 climate-friendly refrigerant, variable speed, heating and cooling capability, operates down to -25°C, smart home ready.
• EcoSplit Air-to-Water Heat Pump System Split air-to-water heat pump system consisting of an indoor unit and outdoor evaporator. Suitable for new builds and renovations, uses stored solar warmth from outside air, with quiet operation.
• CTC EcoZenith i360 Indoor Module Intelligent building module with integrated heat pump control, available in 1.67m or 1.91m heights, produces 300+ liters hot water, with standard internet connectivity and Smartgrid readiness.
• CTC EcoZenith i555 Pro Indoor Module Multi-tank indoor module with integrated intelligent control, automatic detection of connected components, 22 liters/min flow rate producing 600+ liters at 40°C, 90mm PUR insulation, up to 27kW power, smart home ready.
• CTC EcoLogic M/L/XL Control System Individual control system for monitoring and controlling CTC heat pumps, solar collectors, additional external heat sources, buffer storage, swimming pools, cooling systems, and automatic switching between heat sources.
• CTC 3131 Domestic Hot Water Heat Pump Heat pump water heater with integrated defrosting, -10°C to +35°C operating range, 258-liter capacity, integrated heat exchanger, LCD display with legionella protection, and high-efficiency rotary compressor.
• FKF Solar Collector Full-surface absorber solar collector with highly selective vacuum coating, 95% efficiency, Mäander absorber allowing simple hydraulic connection and modular expansion.
• SolBox Solar Kit Completely pre-mounted compact unit containing all required components for solar systems up to 35m² collector area. Saves up to 4 hours installation time compared to conventional mounting.
• EcoSwiss 360 LRP-K Oil Condensing Boiler Condensing heating boiler with low-temperature 3-pass boiler in LoW-NOx technology with stainless steel exhaust gas heat exchanger. Twelve models from 120 to 550 kW, delivering 10%+ efficiency improvement.
• EcoSwiss FCU Oil Condensing Boiler Full condensing oil boiler with blue burner, two-stage or modulating, supporting up to two mixer circuits and one direct heating circuit plus water heater. Stainless steel inner body, 5-year warranty with annual maintenance.
• GiegaStar Plus Gas Condensing Boiler Wall-mounted gas condensing unit for room-independent or room-dependent operation. CE certified, monoblock heat exchanger, modulating 20-100%, stainless steel pre-mix burner, weather-controlled regulation.
• Oil Burners (GL, GB, M Series) Full-automatic oil pressure atomizing burners including GL 10, GB3000, GL 20, M 10, M 2, and M 3 models for various heating requirements.
• Bio Gas Burners (GG Series) Fully automatic gas burners including GG 10 and GG 20 models, with forced draft air intake through blower for optimal combustion.
• EnergyFlex Integration System Proprietary integrated system allowing connection of multiple heat sources (solar thermal, additional tanks, water-fired stoves, wood, electric, pellet, and gas boilers) to a single CTC heat pump, enabling staged expansion.

Quantifiable outcome

• Up to 85% reduction in heating costs with ground-source heat pumps compared to electric or oil boiler heating
• +7 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

Feature7 records

Partnerships

One partnership is on record.

• Swedish Football Association (SvFF)minorStrategic or Co-development PartnerCTC has an extended partnership agreement with the Swedish Football Association covering both the men's and women's national teams until 2025. This sponsorship/partnership arrangement supports CTC's brand visibility in the Swedish market. Mats Lindgren, Marketing and Sales Director at CTC, expressed excitement about major upcoming championships.

Scale indicators8 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Viessmann: German heating, cooling, and heat pump manufacturer. Directly competes with CTC in residential and commercial heat pumps, with broader portfolio including industrial refrigeration and solar.
• Daikin: Global HVAC leader with major European heat pump manufacturing footprint (including Belgium and Germany). A growing competitive threat to CTC as Daikin scales residential heat pump output in core CTC geographies.
• Bosch Home Comfort (formerly Bosch Thermotechnik): Global incumbent offering heat pumps (including the Bosch and Buderus brands) across Europe. Competes with CTC across residential and commercial segments with vastly greater scale and marketing investment.
• Vaillant: Major German heating OEM offering heat pumps, gas boilers, and hybrid systems. Overlaps with CTC in residential heat pumps but operates at much larger scale and broader product portfolio.
• Mitsubishi Electric: Japanese HVAC giant with strong European heat pump presence (Ecodan range). Overlaps with CTC in air-to-water and ground-source categories and competes for installer channel relationships.

Others

• Kermi (Arbonia Group): D-A-CH focused radiator and HVAC systems manufacturer (now under Arbonia). Adjacent comparable given heating system expertise and shared distribution in the German-speaking European market.

Emerging players

• Heliotherm: Austrian specialist in brine-to-water and air-to-water heat pumps, including large cascade systems. Comparable niche competitor with similar European residential/commercial focus.

Direct peers

• NIBE: Swedish heat pump manufacturer founded in Småland, the leading Scandinavian residential heat pump brand. Most direct comparable to CTC given shared Swedish origin, ground-source and air-to-water product focus, and similar installer-channel GTM.
• IDM Energiesysteme: Austrian heat pump manufacturer focused on ground-source and air-to-water systems for the D-A-CH region. Highly comparable to CTC's product range and D-A-CH certification focus (D-A-CH quality seal).
• Stiebel Eltron: German heat pump specialist with strong residential and light commercial focus across Europe. Highly comparable to CTC in product range (ground-source, air-to-water, DHW heat pumps) and reliance on certified installer networks.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries10 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 CTC