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LCL Awards DAH1 Domestic Direct Air & Warm Air Heaters (Natural Gas) Course
Gas

LCL Awards DAH1 Domestic Direct Air & Warm Air Heaters (Natural Gas) Course

1 days
Level 3 Certificate

The LCL Awards Natural Gas Direct Air Heaters DAH1 Course is designed for gas engineers and heating professionals looking to gain the official qualification needed to work safely and competently on domestic natural gas ducted air heaters. This course covers the essential skills and knowledge required to install, service, maintain, and repair these appliances in compliance with current Gas Safe regulations and industry standards.

Suitable for those already qualified in core gas safety modules, this course builds specialised expertise in direct air heaters up to 70kW. For candidates needing to refresh their skills, reassessment options are available to maintain compliance and certification.

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LCL Awards DAH1 Domestic Direct Air & Warm Air Heaters (Natural Gas) Course

Why Take the DAH1 Qualification?

Achieving the DAH1 qualification enhances your skillset, allowing you to confidently handle domestic natural gas ducted air heating systems. This course not only opens up additional work opportunities in the heating and plumbing trade but also ensures adherence to the latest safety and technical regulations. It’s an essential step for professionals committed to maintaining high industry standards.

We offer expert training delivered by experienced instructors, comprehensive course materials, and a practical learning environment tailored to meet Gas Safe registration requirements. For those looking to maintain their certification, we provide convenient reassessment courses that keep your qualifications current and valid.

LCL Awards DAH1 Domestic Direct Air & Warm Air Heaters (Natural Gas) Course
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Overview
What Will I Learn On This Course?
Course Content

Overview

This course thoroughly covers all aspects of working safely and competently with domestic natural gas ducted air heaters. The curriculum follows the LCL Awards and ACS syllabus to ensure full compliance and recognition. Key topics include:

  • Understanding the principles of gas combustion in ducted air heaters
  • Familiarisation with appliance types, components, and controls
  • Safety considerations and statutory regulations
  • Gas safety legislation and risk assessments
  • Installation procedures for ducted air heaters up to 70kW
  • Servicing and maintenance techniques
  • Fault diagnosis and repair practices
  • Testing for tightness and gas soundness
  • Flue system inspection and assessment
  • Practical skills development in real-world appliance scenarios
  • Completion of technical assessments and practical demonstrations
  • Written examinations covering theoretical knowledge

The course is hands-on, combining theory with practical exercises to prepare you for both the written and practical elements of the qualification.

Entry Requirements

Prerequisites

Candidates must hold a valid CCN1 Domestic Gas Safety qualification and be registered with Gas Safe. The 12-month registration rule applies, meaning candidates must apply for the qualification within 12 months of the date of first registration on the Gas Safe Register for the relevant work scope. Basic knowledge of gas safety and experience in domestic gas work are essential.

Learning Outcomes

What skills will I gain?

Completing the DAH1 course equips you to safely and effectively install, service, and repair domestic natural gas ducted air heaters. You will understand:

  • All relevant Gas Safe regulations and standards
  • How to carry out risk assessments and manage hazards
  • Correct installation and commissioning procedures
  • Efficient fault finding and maintenance techniques
  • How to complete detailed service reports and documentation
  • The practical application of safety tests and flue analysis

Related Courses

Extend your heating appliance scope with the HTR1 Domestic Fires & Wall Heaters (Natural Gas) Course or the CENWAT1 Domestic Central Heating Boilers & Water Heaters (Natural Gas) Course.

Materials

Resources

Our training includes full course manuals, access to up-to-date technical guidance, and practical tools needed during the hands-on sessions. Students receive detailed handouts and online resources to support their learning during and after the course.

What’s Included

What should I expect from my booking?

Your course fee includes lunch and refreshments (tea, coffee, and juice), full course entry and examination fees, access to expert instructors, and all training materials. Our comfortable training facilities ensure a focused learning environment with all necessary resources provided.

Got a Question? We’ve Got Answers
Frequently Asked Questions
Who needs the DAH1 qualification?

Gas engineers working with domestic natural gas ducted air heaters up to 70kW need this qualification to comply with Gas Safe requirements.

What prior qualifications do I need before taking DAH1?

You must hold a valid CCN1 qualification and be registered on the Gas Safe Register under the relevant work scope.

Can I do a reassessment instead of the full course?

Yes, refresher and reassessment courses are available to renew your DAH1 certification and keep your qualifications up to date.

What does the practical assessment involve?

The practical exam tests your ability to safely install, service, and fault-find on domestic ducted air heaters under supervised conditions.

Will I get a certificate upon completion?

Successful candidates receive the LCL Awards DAH1 qualification certificate, recognised across the gas industry.

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