The demand for reliable and energy-efficient heating solutions has significantly increased across the United Kingdom. Whether it’s for residential hot water systems, commercial boilers, or industrial fluid heating, immersion heaters play a vital role in delivering safe and consistent heating performance. This article explores the top immersion heater manufacturers and suppliers in the UK, highlights the applications, and discusses the qualities that set leading providers apart.
From custom-built solutions to standardized products, immersion heaters continue to be a cornerstone of the heating industry. For businesses and homeowners alike, partnering with the right manufacturer ensures not only performance but also longevity and safety.
An immersion heater is an electric heating element that is submerged directly into a liquid, such as water, oil, or chemicals, to heat it efficiently. These heaters convert electrical energy into heat and are widely used in:
Domestic water heating systems
Commercial boilers
Industrial chemical tanks
Oil heating units
Food processing equipment
Immersion heaters are typically made of stainless steel, copper, or Incoloy for corrosion resistance and come in different forms such as screw plug, flanged, and over-the-side configurations.
Domestic water tanks and geysers
Central heating support
Oil and gas processing
Chemical storage and heating
Manufacturing and food industries
Boilers and HVAC systems
Swimming pools and spas
The UK’s diverse climate and strong industrial infrastructure make immersion heaters a key component in both new constructions and retrofit projects.
Compliance with UK and EU Standards (CE, RoHS, BS EN)
High-grade materials for corrosion resistance
Customizable design and mounting options
Energy-efficient technology
Rapid delivery and technical support
UK manufacturers often provide tailored solutions to meet niche industrial requirements, which is a major benefit over generic imports.
Located in Manchester, Heatrod Elements is a premier UK manufacturer of electric heating elements. Their immersion heaters are trusted across a wide range of sectors from food processing to renewable energy.
Specialties:
Flanged and screw plug immersion heaters
Renewable energy heating elements
Custom design for marine and offshore applications
A UK-based specialist in electric immersion heaters and heating elements, offering tailored heating solutions for industrial clients.
Strengths:
Bespoke engineering
Quick turnaround times
Excellent customer support
While primarily a cable supplier, their heating division provides immersion heating solutions integrated with control systems.
Key Applications:
Oil & gas
Petrochemical
Commercial installations
Watlow is a global leader in industrial heating systems, with a strong presence in the UK. Their immersion heaters are known for advanced control and durability.
Offerings:
Smart heating systems
Temperature sensors and controls
Industrial-grade immersion heaters
PHS provides a comprehensive range of electric heaters and specializes in process heating systems across the UK.
Highlights:
Element refurbishing services
In-house engineering
Turnkey heating system installation
Local Support & Faster Delivery: No long lead times due to shipping delays.
Compliance & Safety: Meets local regulatory requirements (UKCA, CE).
Custom Engineering: Ability to request modifications and design tweaks.
Post-Sale Services: Repairs, replacements, and on-site support.
Whether you're managing a power plant or replacing a heater in your home, UK manufacturers offer scalable and dependable options.
Smart Control Integration: IoT and programmable thermostats
Energy-Efficient Materials: Enhanced insulation and heat recovery systems
Decarbonization Initiatives: Electrification of heating systems to support the UK’s net-zero goals
Solar-Powered Immersion Heating: Using solar panels to power water heaters
Immersion heaters are an essential part of the UK’s heating infrastructure, and working with reliable manufacturers ensures safety, efficiency, and performance. From residential installations to complex industrial systems, the right immersion heater solution can reduce operational costs and improve energy output.
Whether you need off-the-shelf products or bespoke heating systems, the United Kingdom is home to world-class immersion heater manufacturers committed to innovation and excellence.
