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Stephen Day

Gas Safe Engineer at iHeat

Stephen Day is a Gas Safe registered and FGAS certified engineer with over 20 years of hands-on experience in the heating, cooling, and renewable energy industry, specialising in boiler installations, air conditioning, and heat pump systems.

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About Stephen Day

Stephen Day is a Gas Safe registered and FGAS certified engineer with over 20 years of hands-on experience in the heating, cooling and renewable energy industry.

Throughout his career, Stephen has designed, installed and maintained thousands of systems across homes and businesses in the UK. His background on the tools, combined with his directorship role at iHeat, gives him a rare understanding of both the technical and operational sides of the industry.

He has helped to secure Which? Trusted Trader accreditation all with a focus on delivering great service and long-term value for customers. He also writes for the iHeat blog, sharing practical advice and explaining heating topics in plain, helpful language.

Stephen continues to stay up to date with the latest heating technologies, building regulations and low-carbon innovations.

Gas Safe ID: 5910722

Expertise

  • Boiler systems and installation
  • Heat pumps and hybrid heating systems
  • Gas safety and compliance
  • System design
  • Renewable and low-carbon technologies
  • Technical training


Articles by Stephen Day are reviewed by iHeat’s technical team for accuracy and reliability.

Stephen Day's latest articles

Are Biomass Boilers Worth it?

30th May, 2025 Guides

Are Biomass Boilers Worth it?

Biomass boilers are a sustainable and eco-friendly style of heating solution that can help...

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What is Boiler Frost Protection?

30th May, 2025 Guides

What is Boiler Frost Protectio...

Boiler frost protection is an important feature that helps prevent your boiler from freezi...

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Vaillant F72 Error Code - How To Fix

30th May, 2025 Guides

Vaillant F72 Error Code - How...

If you're experiencing the Vaillant F72 error code on your boiler, our guide can help. We...

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Boiler Parts and Their Functions

30th May, 2025 Guides

Boiler Parts and Their Functio...

Understanding the different parts of a boiler and their functions is essential for homeown...

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How to Fix Boiler Airlock: Expert Guide

30th May, 2025 Guides

How to Fix Boiler Airlock: Exp...

If you're struggling with a boiler airlock, our comprehensive guide can help. We explain t...

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Disadvantages of Oil Boilers: Exploring Key Concerns

30th May, 2025 Guides

Disadvantages of Oil Boilers:...

Oil boilers may be a popular choice for home heating, but they come with some significant...

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How to Turn Off a Radiator

30th May, 2025 Guides

How to Turn Off a Radiator

Discover the comprehensive guide to understanding and turning off your radiator effectivel...

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What Size Heat Pump Do I Need? How To Choose The Right Size Heat Pump

30th May, 2025 Guides

What Size Heat Pump Do I Need?...

Understanding the perfect heat pump size for your UK home is vital for efficiency and comf...

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Heat Pump Maintenance

30th May, 2025 Guides

Heat Pump Maintenance

Welcome to iHeat, your trusted online boiler installation company! We are thrilled to intr...

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Baxi Platinum+ System Boiler Review

30th May, 2025 Reviews

Baxi Platinum+ System Boiler R...

At iHeat, we pride ourselves on offering the finest heating solutions to our customers. To...

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Worcester Bosch C6 Boiler Error Code

30th May, 2025 Guides

Worcester Bosch C6 Boiler Erro...

When it comes to home heating, a reliable and efficient boiler is essential. However, boil...

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What is a Limescale Reducer or Inhibitor?

30th May, 2025 Guides

What is a Limescale Reducer or...

Limescale can be a pesky problem, but one that can be easily solved with just a few simple...

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