What Unitherm Heating Systems does

Unitherm Heating Systems Ltd is an Ireland-headquartered designer, distributor and servicer of integrated air-to-water heat pump, underfloor heating, radiator and mechanical heat recovery ventilation (MHRV) systems, serving residential and small-commercial customers across the island of Ireland and, since 2021, the United Kingdom. Founded in 2004 by Declan Kissane and Peter Lynskey, the company distributes four heat-pump brands — LG (exclusive in Ireland since 2018), Hitachi, Daikin and Hisense — together with Fränkische and Sesta UFH pipe systems, Airfel and Sira radiators, and Renson demand-controlled ventilation. Engineering value-add is delivered through a proprietary in-house design tool ('Unicalc') and a multi-disciplinary heating-system design team whose outputs are PI-insurance-backed for compliance with Irish building regulations (Part F, nZEB, SR50).

The company operates a sales-led, territory-based GTM with four regional sales representatives covering every Irish county plus a National Sales Manager, supported by offices in Dublin (HQ, Newcastle), Galway (engineering and training academy) and Cork, and a UK office in Exeter. Revenue streams combine hardware sales of heat pumps, UFH, radiators and MHRV products with professional services including system design, commissioning, nationwide servicing and an SEAI-accredited Level 6 heat-pump installer certificate delivered in partnership with Atlantic Technological University (ATU). As of October 1, 2024, Unitherm is a wholly-owned subsidiary of Purmo Group, a Finnish climate-comfort business owned by Apollo Global Management that operates in 23 countries.

Name

Unitherm Heating Systems

Legal name

Unitherm Heating Systems Ltd

Website

https://unithermhs.ie

Company type

Private

Founded year

2004

Operating status

Acquired

Headcount range

51–100 employees

Short description

Unitherm Heating Systems is an Ireland-based designer, distributor and servicer of air-to-water heat pumps, underfloor heating, radiators and MHRV ventilation, serving residential and commercial customers across Ireland and the UK.

Ownership category

akta.pro rank

Product category

Heating and Ventilation Equipment Distribution

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (238220)

SIC

Steam & Air-Conditioning Supply (4961)

akta.pro primary industry

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

Keywords

• Heat pump systems
• Underfloor heating
• Mechanical ventilation
• Heating system design
• Heat pump training

Headquarters

HQ city

Newcastle

HQ country

Ireland

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Heat Pump Sales: Sale of air-to-water heat pumps from brand partners (LG, Hitachi, Daikin, Hisense) along with design, supply, and commissioning services. Revenue from both residential and commercial projects.
2. Underfloor Heating Systems: Supply and design of underfloor heating systems using Fränkische and Sesta pipe and manifolds, including loop plans and installation support.
3. Radiators: Sale of aluminium (Sira) and steel (Airfel) radiators suitable for heat pump systems and low-temperature heating applications.
4. Ventilation Systems: Supply and design of Mechanical Heat Recovery Ventilation (MHRV/HRV) systems including Renson products (Healthbox, Endura Delta, Cube).
5. Training Services: SEAI-accredited Certificate in Heat Pump Installation, Commissioning, Maintenance and Servicing course delivered in partnership with ATU Galway. Part-time 13-week programme with €1,400 fees.
6. Commissioning and Servicing: Nationwide team of skilled engineers for commissioning, emergency breakdown assistance, and annual servicing for supplied heat pump units.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels8 records

Core offering

Unitherm Heating Systems designs, supplies, commissions, and services integrated residential and commercial heating and ventilation solutions. The portfolio spans air-to-water heat pumps (LG, Hitachi, Daikin, Hisense brands), Exhaust Air Heat Pumps, underfloor heating systems (Fränkische, Sesta), aluminium and steel radiators (Sira, Airfel), and Mechanical Heat Recovery Ventilation systems (Renson). The company provides full project support including bespoke system design via in-house Unicalc software, PI-insured design certification, nationwide engineer commissioning and servicing, and a SEAI-accredited heat pump installer training programme delivered with Atlantic Technological University (ATU).

Product overview

Unitherm Heating Systems is a provider of integrated residential and commercial heating solutions, specializing in air-to-water heat pumps, underfloor heating, and mechanical ventilation systems. The portfolio includes four heat pump brands (LG, Hitachi, Daikin, Hisense), two underfloor heating brands (Fränkische, Sesta), two radiator brands (Airfel, Sira), and Renson ventilation products. LG represents a flagship exclusive partnership featuring the world's first R32 Monobloc heat pump. The company also offers exhaust air heat pumps and provides its own in-house 'Unicalc' design software for engineering calculations. A Level 6 accredited heat pump training certificate program is delivered in partnership with ATU Galway.

Differentiator

Problem solved

Functional benefit

Products and services

• LG Air Source Heat Pumps LG Therma V R32 Monobloc S (2nd generation) air-to-water heat pumps combining indoor and outdoor units as one module with no refrigerant piping required. Unitherm is the exclusive Irish supplier of LG Heat Pump products. Sold to installers and developers for residential and commercial new build and retrofit projects.
• Hitachi Air Source Heat Pumps Hitachi Yutaki range of air source heat pumps with A+++ energy classification, models from 1.85kW to 17.80kW, including Yutaki S Combi indoor units with minimalist design and low noise levels. Sold to installers and developers across Ireland and the UK.
• Daikin Air Source Heat Pumps Daikin Altherma 3 air source heat pumps with integrated split systems, sleek design, and water temperatures up to 65°C, available in 4, 6, and 8 kW models. Distributed by Unitherm for new build and retrofit projects across Ireland.
• Hisense Air Source Heat Pumps Hisense air source heat pumps offered as the fourth brand option in Unitherm's heat pump portfolio alongside LG, Hitachi, and Daikin, broadening customer choice across residential and commercial projects.
• Exhaust Air Heat Pumps Heat pumps that draw pre-heated stale air from bathrooms, utilities, and kitchens, extracting energy through a heat pump to heat radiators, underfloor heating, and hot water. COP efficiency exceeds 500%. Suitable for homes seeking high-efficiency heating combined with mechanical ventilation.
• Fränkische Underfloor Heating German-made turatec multi-layer pipe (PE-RT/Aluminium/PE-RT) underfloor heating systems with superior sound absorption, flow properties, and corrosion resistance for domestic water distribution and heating systems. Supplied with design support and installation guidance.
• Sesta Underfloor Heating Italian-made multi-layer PEX-Al-PEX pipe systems with press fittings for high and low temperature heating and conditioning circuits, including cosypipe products. Supplied with design and installation support for residential and commercial projects.
• Airfel Steel Radiators Steel panel radiators with cataphoresis coating technology (Zirconium Green Technology) that eliminates heavy metals, suitable for heat pump systems and low-temperature heating applications.
• Sira Aluminium Radiators Sira Ali Princess, Ali Royal, and Ali Queen aluminium radiators with patented three-front-wing design for directed heat distribution. Sira Group was founded in 1959 and holds the worldwide patent for the aluminium radiator developed in 1961.
• Mechanical Heat Recovery Ventilation (MHRV/HRV) Systems Mechanical Heat Recovery Ventilation systems that filter incoming air and remove excess moisture to prevent mould, condensation, and improve indoor air quality. Systems are designed using Unitherm's in-house Unicalc software to exceed Part-F building regulations. Includes demand-controlled ventilation with CO2, moisture, and VOC sensors.
• Renson Ventilation Products Belgian-manufactured Renson MHRV products including Healthbox 3.0 Hygro (demand-controlled extract ventilation), Endura Delta 330/380/450 (balance ventilation with up to 89% efficiency), and Cube (individual apartment ventilation system). Supplied by Unitherm to installers and developers across Ireland and the UK.
• Certificate in Heat Pump Installation, Commissioning, Maintenance and Servicing Level 6 NFQ-accredited part-time course (13 weeks, blended delivery of theory and practical training) covering installation, commissioning, servicing, and maintenance of heat pump systems. Developed with ATU Galway; SEAI-recognised for installer registration. Programme fee €1,400 with bi-annual intake. Targets plumbers, refrigeration engineers, and installers.

Quantifiable outcome

• Heat pump efficiencies can exceed 400%, producing four times the heat energy per unit of electricity
• +2 more outcomes

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Eleven partnerships are on record, tiered core and minor.

• Atlantic Technological University (ATU)coreStrategic or Co-development Partner · 1 January 2023Partnership with ATU's Department of Mechanical and Industrial Engineering to deliver SEAI-accredited Certificate in Heat Pump Installation, Commissioning, Maintenance and Servicing. The programme runs bi-annually with 13 weeks of blended learning at ATU Galway campus and Unitherm's training facility in Ballybane, Galway.
• LGcoreChannel Partner/ Reseller/ Distributor · 1 January 2018Exclusive supplier of LG Heat Pump products in Ireland since 2018. Unitherm distributes LG Therma V R32 Monobloc and Hydrosplit heat pumps. LG's Therma V series is particularly suited to new residential units and home energy upgrades with no requirement for gassing the heat pumps.
• HitachicoreChannel Partner/ Reseller/ Distributor · 1 January 2017Unitherm launched Hitachi series of heat pumps to the Irish market in 2017. The Yutaki range is one of the most efficient and easy to operate heat pump ranges available, with A+++ energy classification.
• DaikincoreChannel Partner/ Reseller/ Distributor · 1 January 2008Daikin Ireland requested Unitherm to incorporate their air-to-water heat pumps into Unitherm system designs in 2008. Daikin Altherma 3 heat pumps are distributed by Unitherm for new build and retrofit projects.
• HisenseminorChannel Partner/ Reseller/ DistributorHisense heat pumps offered as a fourth brand option in Unitherm's portfolio alongside LG, Hitachi, and Daikin.
• SEAI (Sustainable Energy Authority of Ireland)coreStrategic or Co-development PartnerSEAI accreditation for the Certificate in Heat Pump Installation programme. Graduates meet SEAI's entry criteria for registration as renewable heat pump energy installers.
• FränkischecoreTechnology or IntegrationGerman manufacturer of turatec multi-layer aluminium-composite pipes for underfloor heating systems. Fränkische established 1906, industry leader in design and manufacturing of domestic water distribution systems.
• SestacoreTechnology or IntegrationItalian manufacturer of cosypipe PEX-Al-PERT multilayer pipes and press fittings for underfloor heating systems.
• AirfelcoreTechnology or IntegrationSteel radiator manufacturer with high-tech cataphoresis coating process (Green Technology Zirconium). Products used with heat pump systems and low-temperature heating.
• SiracoreTechnology or IntegrationItalian manufacturer of aluminium radiators. Sira Group founded 1959, holds the worldwide patent for aluminium radiator developed in 1961. Products include Ali Princess, Ali Royal, Ali Queen models.
• RensoncoreTechnology or IntegrationBelgian manufacturer of MHRV products including Healthbox 3.0 Hygro (demand-controlled extract ventilation), Endura Delta range (balance ventilation with up to 89% efficiency), and Cube ventilation systems.

Scale indicators5 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• Baxi: Major UK/Ireland boiler and heat pump brand with established installer networks and integrated heating solutions. Comparable to Unitherm in serving residential heating customers across Ireland and the UK with heat pumps, system design, and aftersales support.
• Vaillant: European HVAC manufacturer with aroTHERM air-to-water heat pumps and a strong UK/Ireland installer programme (Vaillant Advance). Comparable to Unitherm in integrated residential heating offerings and installer certification-driven GTM.
• Viessmann: German manufacturer of heating systems including Vitocal air-to-water heat pumps, with active UK and Irish operations. Comparable to Unitherm in providing integrated heat pump solutions, system design support, and aftersales services for residential customers.
• Bosch Thermotechnology: Major HVAC OEM offering Compress heat pumps and heating solutions across Ireland and the UK via installer networks. Comparable to Unitherm in heat pump product breadth, residential focus, and reliance on certified installer channels.
• Daikin Ireland: Global HVAC OEM with direct Irish operations distributing Altherma heat pumps. Both a supplier and indirect competitor to Unitherm, overlapping in target customers, product range (air-to-water heat pumps), and the Irish installer ecosystem.
• Mitsubishi Electric: Global HVAC OEM with Ecodan air-to-water heat pump range sold across Ireland and the UK through authorized installer networks. Comparable to Unitherm in residential heat pump offerings, brand-driven GTM, and installer certification programmes.

Direct peers

• Grant Engineering (Ireland): Long-established Irish/UK manufacturer and supplier of heating systems including heat pumps and condensing boilers. Comparable to Unitherm as a home-market competitor targeting Irish residential and commercial customers with similar heat pump product lines and installer relationships.
• Alternative Heat (Ireland): Irish heat pump installer and integration specialist serving residential and commercial customers across Ireland. Comparable to Unitherm as a domestic competitor with similar heat pump product offerings, design/installation capabilities, and Irish market focus.
• NIBE Energy Systems: Swedish heat pump specialist with a strong European presence and growing UK/Ireland footprint. Comparable to Unitherm as a heat-pump-led specialist focused on residential decarbonization, selling through trained installer networks.

Regional players

• Hevac (Ireland): Irish HVAC equipment distributor and service provider supplying heating, ventilation, and renewable energy products. Comparable to Unitherm in product distribution and system integration, though broader in scope across HVAC categories.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCxoTGYgYGYL0ylt8-dsOAwQ
• Facebookfacebook.com/unithermheatingsystems
• LinkedInlinkedin.com/company/unitherm-heating-systems-ltd
• Instagraminstagram.com/unithermheatingsystems
• Xx.com/UnithermHS

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 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 Unitherm Heating Systems