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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

Boiler Repair Near Me

04th February, 2026 Guides

Boiler Repair Near Me

Boiler repair involves addressing issues with a boiler system, ensuring it functions safel...

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Boiler Repair London

04th February, 2026 Guides

Boiler Repair London

Boiler repair in London for the year 2026 entails not only a financial consideration but a...

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Boiler Repair Birmingham

04th February, 2026 Guides

Boiler Repair Birmingham

Boiler repairs are a critical aspect of maintaining a household's functionality and safety...

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Boiler Installation Bolton

04th February, 2026 Guides

Boiler Installation Bolton

The expense incurred from installing a boiler can vary significantly based on factors such...

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Boiler Hacks: Boost Performance & Savings

04th February, 2026 Guides

Boiler Hacks: Boost Performanc...

Boiler hacks are simple tricks and tips that can help you save money on your heating bills...

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Baxi Megaflo Compact System - Boiler Review

04th February, 2026 Guides

Baxi Megaflo Compact System -...

The Baxi Megaflo Compact System boiler is a high-efficiency heating solution, designed wit...

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Baxi Combi Boiler Costs

04th February, 2026 Guides

Baxi Combi Boiler Costs

A newer, high-end Baxi combi boiler not only aims to save on space but can also offer sign...

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Baxi Boiler Not Working, No Error Code

04th February, 2026 Guides

Baxi Boiler Not Working, No Er...

In the realm of boiler maintenance, two elements take centre stage: diagnosing issues and...

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Baxi Boiler E125 Error Code

04th February, 2026 Guides

Baxi Boiler E125 Error Code

Boiler systems are intricate and can exhibit a range of error codes that signal specific i...

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At What Age Should You Replace A Boiler?

04th February, 2026 Advice

At What Age Should You Replace...

Your boiler is one of the most important appliances in your home. It is responsible for ke...

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Alpha E-Tec Boilers | A Guide to the Range

04th February, 2026 Reviews

Alpha E-Tec Boilers | A Guide...

Founded in 1966, Alpha Heating Innovation is recognised as one of the leaders of the UK’s...

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Air Source Heating - Air to Air Source Heat Pump

04th February, 2026 Guides

Air Source Heating - Air to Ai...

Air source heating harnesses environmental warmth to heat homes efficiently, utilizing a d...

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