Thermal Earth

What Thermal Earth does

Thermal Earth Ltd is a privately held UK renewable heating specialist founded in 2006 and headquartered in Ammanford, Carmarthenshire, Wales. The company manufactures (via exclusive UK distribution agreements), designs, and installs integrated heat pump systems spanning ground source (GSHP), air source (ASHP), and water source (WSHP) heat pumps, with proprietary MasterTherm, ACOND, and Ariston product lines ranging from 2kW residential units to 500kW commercial systems. Underlying technology includes inverter-driven R290 refrigerant heat pumps, internet-connected MasterTherm smart controls with remote diagnostics, shared ground loop arrays for multi-dwelling developments, and bespoke engineering for specialised applications such as marine water-source heat pumps with titanium heat exchangers.

The company operates an in-house borehole drilling capability using proprietary rigs and crews, complemented by a HETAS-accredited training academy, an MCS umbrella scheme covering 500+ partner installers, and a suite of certifications (MCS, GSHPA, NAPIT, RECC, TrustMark, NICEIC). Its go-to-market is a hybrid model combining direct-to-consumer e-commerce and showroom sales, an accredited installer partner programme, and project-based delivery for housing developers, housing associations, and commercial clients.

Revenue is generated through five streams: heat pump equipment sales (MasterTherm, ACOND, Ariston brands plus accessories), full installation services including borehole drilling and commissioning, bespoke system design (thermal modelling, MIS 3005, SAP/SBEM compliance), MCS compliance management for partner installers, and accredited training courses. Customers span homeowners and self-builders, housing developers, social housing providers, commercial and heritage buildings (including National Trust Speke Hall and RNLI Waterloo Bridge), and a trade installer network operating under the MCS umbrella scheme across Wales and the rest of the UK.

Name

Thermal Earth

Legal name

Thermal Earth Ltd

Website

https://thermalearth.co.uk

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

11–50 employees

Short description

Thermal Earth Ltd is a Welsh-founded (2006) UK renewable heating specialist that distributes, designs, and installs ground, air, and water source heat pump systems, serving homeowners, housing developers, social housing providers, commercial clients, and a 500+ accredited installer partner network.

Ownership category

akta.pro rank

Product category

Renewable Heating Systems and Heat Pumps

NAICS

Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers (42372), Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Refrigeration & Service Industry Machinery (3580)

akta.pro primary industry

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

akta.pro secondary industries

Residential HVAC System Installation (Furnace/AC/Heat Pump) (HSAOAGAA), Geothermal Equipment & Component Manufacturing (Turbines, Heat Exchangers, Pumps, ORC Units) (EUAMAEAI), Refrigeration Components & Controls (Compressors, Valves, Sensors) (IMAHAKAH)

Keywords

• Heat pump systems
• Ground source heat pumps
• Air source heat pumps
• Renewable heating installation
• Heat pump distribution

Headquarters

HQ city

Ammanford

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Heat Pump Equipment Sales: Sale of heat pump units (MasterTherm, ACOND, Ariston brands) and associated components including cylinders, buffers, ground collectors, and accessories through e-commerce platform and trade accounts
2. Installation Services: Full system installation including design, borehole drilling, and commissioning for residential, commercial, and social housing projects
3. System Design Services: Bespoke system design including thermal modelling, heat loss calculations (MIS 3005 compliant), SAP/SBEM calculations, and equipment scheduling
4. MCS Compliance Services: Compliance management under MCS certification for partner installers including building regulations, DNO applications, and BUS grant processing
5. Training Services: Accredited training courses including 3-day ASHP courses, manufacturer-specific training, G3 and Legionella qualifications through HETAS-accredited training centre

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels7 records

Core offering

Thermal Earth distributes, designs, and installs renewable heating systems, primarily heat pumps (MasterTherm ground source, air source, and water source units; ACOND air source units; Ariston Nimbus units), complemented by borehole drilling, system design, servicing/maintenance, MCS umbrella compliance, and an installer training academy. The company is the exclusive UK distributor for MasterTherm and an authorised partner for ACOND and Ariston, serving residential, commercial, social housing, and trade installer customers across the UK.

Product overview

Thermal Earth is a renewable heating technology distributor and installer offering a comprehensive portfolio of heat pump systems and complementary services. The core product portfolio consists of MasterTherm heat pumps (AquaMaster ground source and BoxAir air source using R290 refrigerant), ACOND Pro R air source heat pumps, and Ariston Nimbus air source heat pumps. These are complemented by supporting technologies including underfloor heating, solar PV, battery storage, and borehole drilling services. Thermal Earth provides end-to-end solutions through system design, MCS-certified installation, and ongoing maintenance services, along with training programmes for installers through their accredited training academy. The company operates an MCS umbrella scheme enabling partner installers to install under their certification.

Differentiator

Problem solved

Functional benefit

Products and services

• MasterTherm AquaMaster R290

Quantifiable outcome

• 3,500+ successful installations completed since 2006
• +3 more outcomes

Named customers8 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature4 records

Partnerships

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

• Ariston UKmajorGTM or Marketing Partner · 1 January 2026Joint marketing partnership for Housing Cymru 2026 conference attendance. Both companies exhibiting together to promote practical solutions for low-carbon housing and renewable heating to housing professionals across Wales.
• MasterThermcoreTechnology or Integration · 1 January 2006Exclusive UK distributor for MasterTherm heat pumps including AquaMaster (GSHP), BoxAir (ASHP) ranges, and accessories. MasterTherm provides industry-leading COPs, inverter technology, and smart control systems with remote monitoring capabilities. Products range from 2kW to 500kW capacity for residential, commercial, and district heating applications.
• ACONDcoreTechnology or IntegrationAuthorised UK partner for ACOND ultra-quiet air source heat pumps including Pro R and Grandis ranges from 2-22kW. ACOND products feature R290 natural refrigerant, whisper-quiet operation (48dB), and high hot water temperatures up to 70-75°C. Ideal for residential developments where noise is a planning constraint.
• AristoncoreTechnology or IntegrationAuthorised partner for Ariston Nimbus range including Pocket, Plus, and Compact models in mono and split configurations. Strong ECO4 compliance credentials particularly suited for social housing retrofit programmes. Products feature stylish design, quiet operation, and smart app-based controls.
• Wates ConstructionmajorStrategic or Co-development PartnerConstruction partner for Addison House Community Living Scheme in Cardiff (44 apartments). Thermal Earth provided ground source heat pump system design and installation as part of collaborative development approach with Wates and Sero for sustainable social housing.
• SeromajorStrategic or Co-development PartnerEnergy solutions partner for Addison House Community Living Scheme contributing to sustainable community housing development approach alongside Thermal Earth's renewable heating systems.
• HETASmajorTechnology or IntegrationAccredited HETAS training centre delivering solid fuel courses and manufacturer-accredited training for installers. Thermal Earth passes trainee information to HETAS for accreditation and qualification certification.
• Dispute Resolution OmbudsmanminorOthersAlternative Dispute Resolution (ADR) provider for consumer complaints escalation in line with TrustMark and RECC commitments when complaints cannot be resolved directly.

Scale indicators6 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Baxi: Baxi is a leading UK boiler and heating manufacturer (part of BDR Thermea Group) with a growing heat pump portfolio. Comparable as a UK heating equipment supplier serving residential and commercial markets, with established installer relationships that overlap Thermal Earth's customer base.
• Mitsubishi Electric UK: Mitsubishi Electric's UK Living Environment Systems division offers Ecodan air source and ground source heat pumps with a national installer network. Comparable as a major heat pump manufacturer serving UK residential, commercial, and social housing segments with overlapping product range and installer accreditation programmes.
• Worcester Bosch: Worcester Bosch is one of the largest UK heating brands offering boilers, heat pumps, and hybrid systems through a national installer network. Comparable as a UK heat pump equipment supplier and installer programme operator, though at significantly greater scale than Thermal Earth.
• Daikin UK: Daikin is a global HVAC leader with a UK subsidiary offering air source heat pumps, ground source heat pumps, and commercial refrigeration. Comparable as a heat pump equipment manufacturer-distributor with a UK installer programme, competing directly for the same developer and housing association customers as Thermal Earth.
• Grant UK: Grant UK manufactures and distributes heating solutions including the Aerona heat pump range, with a UK installer network. Comparable as a heat pump equipment supplier serving residential and commercial customers, with overlapping ECO4 and social housing credentials.
• NIBE Energy Systems UK: NIBE is a Swedish heat pump manufacturer with a UK subsidiary offering ground source and air source heat pumps. Comparable as a heat pump equipment supplier targeting UK new-build and retrofit markets, with overlapping product specifications (R290 refrigerant, inverter-driven) to Thermal Earth's MasterTherm line.
• Vaillant UK: Vaillant is a major European heating manufacturer with a UK subsidiary selling heat pumps, boilers, and heating systems. Comparable as an overlapping heat pump distributor targeting UK residential and commercial customers, but operates at much larger scale as a manufacturer.

Direct peers

• Kensa Heat Pumps: Kensa Heat Pumps is a UK-based manufacturer and installer of ground source heat pumps with a strong installer network and own manufacturing. Directly comparable to Thermal Earth as a UK-focused GSHP specialist with similar social housing and developer focus.
• ICE Energy: ICE Energy is a UK-based renewable heating installer specialising in air source and ground source heat pumps for residential and commercial customers. Comparable to Thermal Earth as a similarly sized UK heat pump installer with similar target segments and MCS accreditation.

Emerging players

• Octopus Energy (Heat Pump Installation): Octopus Energy has built a UK heat pump installation arm leveraging its energy retail customer base and Cosy tariff. Comparable as a UK heat pump installer targeting homeowners, with substantial financial backing but a narrower focus on residential (less commercial/social housing) than Thermal Earth.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/ThermalEarth
• Facebookfacebook.com/ThermalEarth
• LinkedInlinkedin.com/company/thermal-earth-limited

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Thermal Earth