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Business Details
50+ Years
experience
Trusted Manufacturer of Oil Boilers & Renewable Energy Systems in Lisburn
Established in 1968, Warmflow Engineering has built a reputation as Northern Ireland's leading manufacturer of high-efficiency oil-fired boilers, renewable energy technology, and hot water cylinders. With over five decades of experience, we have dedicated ourselves to delivering reliable, innovative heating solutions tailored to the needs of homeowners and installers across the UK and Ireland. Our commitment to quality is evident in every product we design, incorporating advanced engineering, premium materials, and cutting-edge technology to ensure optimal performance and sustainability. We pride ourselves on our extensive warranties, comprehensive after-sales support, and a dedicated team that provides training and resources to empower installers. Our product range includes the UK and Ireland's only AAA-rated oil boiler, a variety of high-performance cylinders, and market-leading renewable energy systems approved under the Microgeneration Certification Scheme.

We continuously invest in research and development to stay at the forefront of energy-efficient heating solutions, helping customers reduce their environmental impact without compromising on comfort. Our state-of-the-art manufacturing facilities produce components to exacting standards, ensuring durability and reliability in every installation. We maintain strong relationships with our customers, offering direct support through our Lisburn headquarters and regional offices in Shrewsbury and Santander. Our dedication to excellence has earned us industry recognition and the trust of installers who have relied on our products for over 15 years. As we continue to innovate, we remain committed to providing heating solutions that combine technical excellence with environmental responsibility, ensuring warmth and comfort for generations to come.
Services
Oil Boilers Renewable Energy Systems Hot Water Cylinders Product Registration Installer Training Technical Support Warranty Services Product Manuals ERP Information Sanitary Ware
Details
  • Year established: 1968
Highlights and features
  • We offer over 50 years of expertise in manufacturing high-efficiency heating solutions.
  • Our products come with extensive warranties and dedicated after-sales support.
  • We provide innovative, sustainable heating solutions tailored to modern needs.
  • Our team delivers comprehensive training and resources for installers.
  • We are committed to quality, using premium materials and advanced technology.
Associations and certifications
  • MCS
What people say
Market leader Excellent product Quality in design Good after sales support Far superior product
Services
Oil Boilers
Warmflow Engineering's oil boilers combine advanced engineering with energy efficiency, offering internal, external, and boiler house models. Our patented heat exchanger technology and Riello low NOx components ensure clean, quiet operation while maintaining high performance. Suitable for residential and commercial applications, these boilers provide reliable heating solutions with minimal environmental impact.
Renewable Energy Systems
Our Zeno range includes ground source and air source heat pumps using R290 refrigerant with low global warming potential. These MCS-approved systems deliver efficient heating even in cold climates, reducing carbon footprints while maintaining comfort. Designed for integration with existing heating infrastructure, they offer sustainable alternatives for modern installations.
Hot Water Cylinders
Warmflow Engineering's Nero cylinder range features indirect, twin coil, triple coil, direct, and heat pump models with capacities from 110 to 290 litres. Constructed from duplex stainless steel with 316 fittings, these durable cylinders ensure long-lasting performance. Pre-fitted components simplify installation while maintaining high efficiency and reliability for domestic and commercial hot water needs.
Installer Training
We provide comprehensive training programs for heating engineers, covering product installation, maintenance, and troubleshooting. Our Lisburn facility offers hands-on experience with the latest boiler and renewable technologies, ensuring installers stay updated with industry standards. Certified participants gain access to exclusive resources and support networks to enhance their technical expertise.
Product Registration
Our online Connect platform allows customers to register products and activate standard warranties quickly. This system streamlines support requests, service history tracking, and extended warranty purchases. Registered users receive priority assistance and updates about product improvements, ensuring optimal performance and longevity of their heating systems.
Questions
How do I register my Warmflow Engineering product?
Register online through our Connect platform using your purchase details to activate your warranty and access support services.
What warranties do you offer?
We provide comprehensive warranties on all products, with optional extended coverage available through our installer partners.
Are your products suitable for renewable energy systems?
Yes, our Zeno range includes MCS-approved heat pumps designed for efficient, sustainable heating solutions.
Do you provide training for installers?
Yes, we offer certified training programs at our Lisburn facility covering installation and maintenance of all product ranges.
How can I find a local installer?
Contact our sales team or visit our website to locate authorised Warmflow Engineering installers in your area.
What support options are available?
Our customer service team provides technical assistance, product manuals, and troubleshooting guidance via phone and email.