Senior Heat Pump Technical Support Specialist / HVAC Technical Specialist

Aerlio Climate Ltd; Manchester; Hybrid; GBP 45,000 - 70,000; Full time

Job summary

Aerlio Climate Ltd is a growing specialist in low-carbon heating solutions, focusing on heat pump technologies for residential and commercial use. The role involves system design, hydronic engineering, and ensuring UK compliance, with hybrid on-site support across the UK.

You will work on advanced HVAC technologies, including ASHP/GSHP projects, and provide technical training and support to installers and partners. A strong emphasis on quality, compliance, and practical solutions is required.

Qualifications

• Minimum 5 years' experience within the UK HVAC, heating or plumbing industry.
• 2–3 years' hands-on experience in ASHP and/or GSHP, in technical support, system design, commissioning or installation.
• NVQ Level 3 in Plumbing & Heating or equivalent.
• Unvented Hot Water Cylinders (G3) qualification.
• Strong knowledge of UK MCS requirements and heat pump installation standards.
• Experience with heat-loss calculation and system-design software such as OpenReno or Easy MCS.

Responsibilities

• Carry out room-by-room heat loss calculations for UK projects.
• Size radiators, underfloor heating and other heat emitters.
• Design and optimise low-temperature hydronic systems (pipe sizing, flow rates, balance).
• Prepare technical designs per MIS 3005 and UK Building Regulations (Part L).
• Support heat pump sizing and system optimisation for efficient operation.
• Provide technical support to installers, contractors and partners.

Skills

Heat loss calculations

System design

Hydronic engineering

Technical support

English communication

Education

NVQ Level 3 in Plumbing & Heating

G3 qualification

Tools

OpenReno

Easy MCS

Job description

Company Description

Aerlio Climate Ltd is a growing specialist in low-carbon heating solutions, with a focus on modern heat pump technologies for residential and commercial applications. The company is committed to supporting customers and installers with reliable, efficient systems that help reduce energy consumption and environmental impact. Aerlio Climate Ltd values practical innovation, strong technical expertise, and clear communication to ensure high-quality service and support. Team members are encouraged to share knowledge, solve complex technical challenges, and contribute to the development of better heating solutions for a sustainable future.

Employment Type

Full-time

Location

United Kingdom – Hybrid working with on-site technical support

Why Join Us:

Play a key technical role in a growing business

Become a core technical member of the team, directly contributing to the development of technical solutions, product compliance, installer support and commercial deployment across the UK and European markets.

High level of autonomy and technical influence

Work within a flat and agile management structure with minimal bureaucracy. Your technical specifications, system designs and hydronic solutions will have a direct impact on project quality and successful delivery.

Work with next-generation HVAC technologies

Support advanced HVAC and heat pump product lines, including high-efficiency low-temperature systems and R290 heat pumps, contributing to the transition towards low-carbon heating across the UK.

Key Responsibilities

1. System Design & Hydronic Engineering

• Carry out room-by-room heat loss calculations for residential and commercial projects in the UK.


• Select and size radiators, underfloor heating systems and other heat emitters.


• Design and optimise low-temperature hydronic systems, including pipe sizing, flow rates and hydraulic balancing.


• Prepare high-quality technical designs and project documentation in accordance with MCS requirements, including MIS 3005, and relevant UK Building Regulations, including Part L.


• Support heat pump sizing and system optimisation to achieve efficient and reliable operation.


• Provide in-depth technical support to B2B partners, contractors and installers on heat pump selection, system design, commissioning and troubleshooting.


• Support commissioning and configuration of heat pump control systems.


• Diagnose and resolve complex on-site hydraulic and electrical issues.


• Provide technical guidance on issues including abnormal flow rates, frost protection, hot-water cylinder integration, pumps, valves, sensors and smart-control integration.


• Support installers during complex installations, commissioning and fault diagnosis where required.

3. UK Standards, Regulations & Compliance

• Monitor developments in UK regulations and industry requirements, including MCS, DNO requirements (G98/G99), the Boiler Upgrade Scheme (BUS) and relevant Building Regulations.


• Ensure that company products, system designs and technical documentation meet applicable UK compliance requirements.


• Liaise on technical matters with UK certification bodies, Distribution Network Operators (DNOs), industry organisations and other relevant stakeholders.


• Support technical submissions, certification processes and product/system compliance activities.

4. Technical Training & Partner Development

• Develop technical manuals, installation guides, commissioning procedures, troubleshooting documentation and training materials.


• Deliver technical training to installers, contractors, distributors and internal sales teams.


• Improve installer capability and installation quality through structured technical training and practical guidance.


• Help establish technical standards and best-practice procedures for the company's UK installer network.

Requirements

Must-Haves

Industry Experience

• Minimum 5 years' experience within the UK HVAC, heating or plumbing industry.


• At least 2–3 years' hands-on experience in air-source heat pumps (ASHP) and/or ground-source heat pumps (GSHP), ideally in technical support, system design, commissioning or installation.

Qualifications

Candidates should ideally hold relevant UK qualifications, including:

• NVQ Level 3 in Plumbing & Heating, or equivalent


• Unvented Hot Water Cylinders (G3) qualification

Technical Expertise

• Strong working knowledge of UK MCS requirements and heat pump installation standards.


• Experience using professional heat-loss calculation and system-design software such as OpenReno, Easy MCS, or equivalent platforms.


• Strong understanding of low-temperature hydronic heating systems.


• Good knowledge of inverter-driven heat pump operation and control strategies.


• Ability to diagnose complex hydraulic, electrical and control-related system issues.

Communication

• Professional working proficiency in English.


• Strong technical communication and presentation skills.


• Ability to explain complex technical concepts clearly and practically to installers and non-technical stakeholders.

Nice-to-Haves

• F-Gas Category 1 certification.


• Knowledge and practical experience of R290 refrigerant systems and associated safety requirements.


• Hands-on experience with DNO applications, including G98/G99, and the Boiler Upgrade Scheme (BUS) process.


• Experience supporting MCS-certified heat pump projects from design through installation and commissioning.


• Knowledge of smart heating controls, including weather compensation.


• Familiarity with energy optimisation and smart-tariff integration, including systems designed to work with Octopus Energy dynamic tariffs.


• Previous experience providing technical training to installers or developing an installer network.

The Ideal Candidate

You are an experienced UK heating or HVAC professional who understands both the engineering principles behind heat pump systems and the realities of installation on site.

You will be comfortable moving between system design, technical troubleshooting, installer training, compliance and partner support. Most importantly, you will be able to translate technical knowledge into practical solutions that installers and customers can successfully implement.