Gastech Energi
Gastech-Energi A/S is a Danish private heating solutions company that distributes and services CTC and ELCO brand heat pumps and gas boilers nationwide through a trained installer network and 90 service technicians, serving primarily residential homeowners.
- Company typePrivate
- Founded1992
- HeadquartersRisskov, Denmark
- Headcount101–250
- GTM typeB2C
- OfferingServices
What Gastech Energi does
Gastech-Energi A/S is a Danish privately-held heating solutions company operating under the Aktieselskab legal form, headquartered in Risskov, Denmark, and operating as part of the international Ariston Group. The company sells and services climate-friendly residential heating equipment, distributing air-to-water and ground-source heat pumps under the CTC (Nibe group) and ELCO brands, and condensing natural gas boilers under the ELCO and Geminox brands. Products include the CTC EcoAir C100 (R290 refrigerant, A+++ energy class, 35 dB noise output) and the CTC EcoPart i600 M (SCOP up to 5.50), with app-based monitoring through myUplink and ELCO Remocon-Net.
Gastech Energi distributes exclusively through a nationwide channel of specially selected and trained VVS-installatører (plumbing and heating installers) across Denmark; customers request quotes via the company website and are matched to a local installer partner based on geography and product fit. The company employs approximately 90 service technicians providing same-day or within-hours field service nationwide. Complementary revenue comes from a multi-year service agreement portfolio, with the Total Tryghed agreement covering inspections, free calls, the Grøn Indstilling optimization service, and free spare parts for up to 15 years on CTC heat pumps and 10 years on ELCO heat pumps.
The company serves primarily Danish private homeowners replacing aging oil or gas furnaces, with a secondary commercial (erhverv) segment. Pricing starts at 70,000 DKK for air-to-water heat pumps and 90,000 DKK for ground-source heat pumps. Gastech Energi claims approximately 70,000 service customers and 90,000+ total customers, with Trustpilot and Google ratings of 4.6 and 4.8 respectively. CSR activity includes tree-planting partnerships with Plant et Træ and Growing Trees, totaling 16,051 trees as of April 7, 2026.
Gastech Energi firmographics
Firmographics- Name
- Gastech Energi
- Legal name
- Gastech-Energi A/S
- Website
- https://gastech.dk
- Company type
- Private
- Founded year
- 1992
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Gastech-Energi A/S is a Danish private heating solutions company that distributes and services CTC and ELCO brand heat pumps and gas boilers nationwide through a trained installer network and 90 service technicians, serving primarily residential homeowners.
- Ownership category
- akta.pro rank
Gastech Energi industry classification
Industry- Product category
- Residential Heating Solutions
- NAICS
- Plumbing, Heating, and Air-Conditioning Contractors (238220), Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers (423720)
- SIC
- Wholesale-Hardware & Plumbing & Heating Equipment & Supplies (5070), Auto Controls For Regulating Residential & Comml Environments (3822)
- akta.pro primary industry
- Residential HVAC System Installation (Furnace/AC/Heat Pump) (HSAOAGAA)
- akta.pro secondary industries
- Heat Pump Repair & Maintenance (HSAOAHAD), Heat Pump & Smart HVAC Controller Integration (HSAOANAD)
Keywords
Where Gastech Energi is headquartered
LocationHeadquarters
- HQ city
- Risskov
- HQ country
- Denmark
- HQ region
- Europe
Offices1 record
Markets served
Gastech Energi business model
Business model- GTM type
- B2C
- Offering type
- Services
- Cost components
- Personnel, Supply Chain, Marketing or Sales, Operations, Technology or R&D, Infrastructure
Revenue model
- Heat pump and gas furnace product sales: Gastech Energi sells new heat pumps (air-to-water and ground-source) and condensing gas furnaces through a network of VVS installer partners across Denmark. Products are priced from 70,000 DKK for air-to-water heat pumps and from 90,000 DKK for ground-source heat pumps.
- Service agreements (serviceaftaler): Annual and multi-year service agreements for heat pumps and gas furnaces covering inspections, maintenance, free service calls, and in the case of Total Tryghed, spare parts. These provide recurring revenue from the existing customer base of ~70,000 service customers.
- Spare parts and consumables: Replacement parts, coolant refills, and accessories sold during service visits. Total Tryghed agreement includes free spare parts; other customers pay per incident.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Air-to-water heat pump (luft til vand-varmepumpe) from 70,000 DKK |
| Unit Pricing | Pay-as-you-go | Ground-source heat pump (jordvarmepumpe) from 90,000 DKK |
| Subscription | Annual | Total Tryghed service agreement for heat pumps (2-year initial period, then annual renewal) |
| Subscription | Annual | Tryghed service agreement (without spare parts, annual) |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels5 records
Gastech Energi product offering
Product offeringCore offering
Gastech-Energi distributes, installs and services climate-friendly residential heating solutions for Danish homeowners, including air-to-water heat pumps, ground-source heat pumps and condensing natural gas boilers from ELCO and CTC brands. Products are sold exclusively through a nationwide network of specially trained VVS installer partners, with multi-year service agreements (up to 15 years) providing recurring maintenance, inspections and spare parts coverage on the installed base of approximately 70,000 service customers.
Product overview
Gastech-Energi is a Danish heating solutions company offering a comprehensive portfolio of heating products and services for residential properties in Denmark. The core product portfolio consists of three main categories: (1) Luft til vand-varmepumper (air-to-water heat pumps) under ELCO and CTC brands, (2) Jordvarmepumper (ground-source heat pumps) under the CTC brand, and (3) Gasfyr (gas boilers) under ELCO and Geminox brands. These products are complemented by indoor units and control systems including CTC EcoZenith i255, CTC EcoZenith i360, and CTC EcoLogic M/L. The company also provides service agreements including Total Tryghed packages, energy savings calculators, and operates a nationwide network of VVS-installatør (plumbing-heating contractors) partners. The CTC EcoAir C100 represents their newest air-to-water heat pump series, while the CTC EcoPart series covers ground-source solutions ranging from compact basement units (EcoPart 400) to premium modulating models (EcoPart i600 M). ELCO products provide additional air-to-water options for different budget and performance requirements.
Differentiator
Problem solved
Functional benefit
Products and services
- Air-to-Water Heat Pumps (Luft til vand-varmepumper) Heat pumps that extract energy from outdoor air and transfer it to heating water for radiators, underfloor heating, or domestic hot water. Available from ELCO and CTC brands and distributed through Gastech-Energi's VVS installer network for Danish residential customers. Starting price from 70,000 DKK.
- Ground-Source Heat Pumps (Jordvarmepumper) Heat pumps that extract energy from the ground through brine-filled pipes buried in the earth, offering higher efficiency than air-source pumps. Available from CTC brand (including EcoPart 400, EcoPart 600 M, EcoPart i600 M, EcoHeat 400, GS 600 and GSi 600 series). Starting price from 90,000 DKK.
- Gas Boilers (Gasfyr) Condensing natural gas boilers for residential heating and domestic hot water, available from ELCO and Geminox brands. Distributed through the VVS installer network and accompanied by Total Tryghed service agreements for warranty preservation.
- Service Agreements (Serviceaftaler) Multi-year service and maintenance agreements for gas boilers and heat pumps, including the Total Tryghed package with spare parts included and the lighter Tryghed package without spare parts. Initial 2-year commitment with automatic annual renewal; extendable up to 15 years for CTC heat pumps and 10 years for ELCO heat pumps.
- Hybrid Solution (Hybridløsning) Combined system of a heat pump and a gas boiler installed together for residential customers, providing optimal efficiency and flexibility by automatically switching between the two technologies based on conditions and demand.
Quantifiable outcome
- Up to 65% savings on heating bills when switching from oil or gas furnace to heat pump
- +4 more outcomes
Companies that use Gastech Energi
Customer profileNamed customers1 record
Segments3 records
Ideal customer profiles3 records
Gastech Energi technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature6 records
Gastech Energi partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered minor and core.
- Plant et TræminorGastech-Energi partners with Plant et Træ (plant-et-trae.dk) as part of its CSR and environmental strategy. For every service agreement, new heat pump, or new gas furnace purchased, Gastech-Energi supports the planting of trees. As of April 7, 2026, this partnership has resulted in 3,701 trees planted.
- Growing TreesminorGastech-Energi partners with Growing Trees (growingtrees.dk) as part of its CSR and environmental strategy. For every service agreement, new heat pump, or new gas furnace purchased, Gastech-Energi supports the planting of trees. As of April 7, 2026, this partnership has resulted in 12,350 trees planted.
- ELCOcoreGastech-Energi sells ELCO-brand gas furnaces and heat pumps. ELCO is described as offering high technology, efficiency, and quality products always offered with guarantee and 10-15 year service agreements.
- CTC (part of the Nibe group)coreGastech-Energi sells CTC-brand heat pumps. CTC is a Swedish quality brand known for Swedish design and engineering since 1923, offering products including the EcoAir C100, EcoAir 700M, EcoZenith indoor units, EcoLogic controls, EcoHeat, GS, GSi, and EcoPart ground-source heat pump series.
- Ariston GroupcoreGastech-Energi is part of the Ariston Group (Aristongruppen), an international group operating in the heating and hot water sector.
Scale indicators9 records
Recent moves6 records
Expansion highlights5 records
Gastech Energi competitors and assessment
Company assessmentMarket position
Strengths1 record
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Gastech Energi social profiles
Digital presenceGastech Energi compliance and trust
Trust signalCompliance4 records
Gastech Energi financial estimates
Financial estimateRevenue estimate
Valuation estimate
Gastech Energi leadership team
Management profileNumber of profiles
Profiles6 records
Gastech Energi funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Gastech Energi M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Gastech Energi
What does Gastech Energi do?
Gastech-Energi distributes, installs and services climate-friendly residential heating solutions for Danish homeowners, including air-to-water heat pumps, ground-source heat pumps and condensing natural gas boilers from ELCO and CTC brands. Products are sold exclusively through a nationwide network of specially trained VVS installer partners, with multi-year service agreements (up to 15 years) providing recurring maintenance, inspections and spare parts coverage on the installed base of approximately 70,000 service customers.
Is Gastech Energi a public or private company?
Gastech Energi is a private company. It is classified as unknown and is currently operating.
When was Gastech Energi founded?
Gastech Energi was founded in 1992. It employs 101 to 250 people.
Where is Gastech Energi based?
Gastech Energi is headquartered in Risskov, Denmark, in the Europe region.
How does Gastech Energi make money?
Three revenue lines are on record. Heat pump and gas furnace product sales are the primary driver. The others are service agreements (serviceaftaler) and spare parts and consumables.
Does Gastech Energi have an API?
No public API is recorded for Gastech Energi.
What industry is Gastech Energi in?
Gastech Energi's product category is Residential Heating Solutions. Its primary akta.pro industry code is HSAOAGAA, Residential HVAC System Installation (Furnace/AC/Heat Pump), with a secondary code of HSAOAHAD, Heat Pump Repair & Maintenance. Its NAICS code is 238220 and its SIC code is 5070.