ViperGas Domestic NG to LPG Changeover Collection – 2026 Handbook Edition
ViperGas Domestic NG to LPG Changeover Collection – 2026 Handbooks & ACS Preparation Workbook
The ViperGas Domestic Natural Gas to LPG Changeover Collection combines the NEW 2026 Domestic Natural Gas Handbook, the 2026 LPG Fuel Changeover Appendices and the Domestic Fuel Changeover NG–LPG ACS Preparation Workbook.
Designed for gas engineers extending their knowledge and competencies from natural gas (NG) to Liquefied Petroleum Gas (LPG), this specialist collection brings together comprehensive technical reference material and structured assessment preparation resources.
Ideal for qualified domestic gas engineers, trainees, heating engineers and training centres, the collection supports LPG fuel changeover study, technical knowledge development and preparation for relevant ACS assessments.
This collection includes both the 2026 ViperGas Domestic Natural Gas Handbook and the 2026 LPG Fuel Changeover Appendices, together with the corresponding NG to LPG ACS preparation workbook.
The 2026 Domestic Natural Gas Handbook features a new three-book learning format, updated IGEM/UP/1B Edition 4 guidance and a dedicated chapter covering CO, CO2 and fumes investigations.
Key Benefits of the ViperGas NG to LPG Collection
- Two 2026 technical publications covering domestic natural gas and LPG fuel changeover
- Includes the new three-volume ViperGas Domestic Natural Gas Handbook 2026
- Includes the 2026 LPG Fuel Changeover Appendices in the updated wire-bound format
- Dedicated NG to LPG ACS preparation workbook
- Technical reference material for domestic gas installations, appliances, testing and safety
- Specialist LPG information for engineers expanding their scope of gas work
- Structured self-study exercises and revision material for fuel changeover assessments
- Suitable for individual engineers, colleges, employers and gas training centres
What's Included in the 2026 NG to LPG Changeover Collection?
The collection contains three publications, providing both domestic natural gas technical reference material and additional LPG fuel changeover study resources.
1. ViperGas Domestic Natural Gas Handbook – 2026 Edition
The 2026 ViperGas Domestic Natural Gas Handbook is an extensive technical reference for engineers working with domestic natural gas installations, appliances and associated safety requirements.
The new 2026 edition introduces a three-book linear learning format and incorporates guidance aligned with IGEM/UP/1B Edition 4, alongside a dedicated chapter addressing carbon monoxide, carbon dioxide and fumes investigations.
Technical subjects covered include:
- Health and safety requirements
- Gas safety legislation, regulations and responsibilities
- Combustion, measurement and testing
- Domestic gas pipework and fittings
- Tightness testing and purging
- Gas pressure, heat input and gas rates
- Ventilation and combustion air
- Room-sealed chimneys and flues
- Open chimneys and flues
- Gas safety devices and controls
- Unsafe situations and statutory requirements
- Domestic central heating and water heaters
- Gas cookers and space heating appliances
- Domestic meter installations
- CO, CO2 and fumes investigations
- Gas appliance fault finding
This technical handbook forms the natural gas reference component of the collection, providing essential background knowledge for engineers progressing into LPG work.
2. ViperGas LPG Fuel Changeover Appendices – 2026 Edition
The 2026 ViperGas LPG Fuel Changeover Appendices complement the Domestic Natural Gas Handbook by providing specialist technical information relevant to Liquefied Petroleum Gas installations and fuel changeover.
The 2026 edition is presented in an updated wire-bound format, with revised chapter presentation and organisation. The underlying technical content remains unchanged from the preceding edition, according to the publisher's edition information.
Subjects covered within the ViperGas LPG technical library include:
- LPG regulations and legislative requirements
- Combustion, measurement and testing
- LPG pipework installations and fittings
- Tightness testing and purging procedures
- Safety devices and controls
- LPG installations on boats
- Leisure accommodation vehicles
- Park homes and associated LPG applications
Used alongside the Domestic Natural Gas Handbook, these appendices provide additional reference information for engineers undertaking relevant LPG fuel changeover training or assessment.
3. Domestic Fuel Changeover NG to LPG – ACS Preparation Workbook
The collection also includes the ViperGas Domestic Fuel Changeover Natural Gas to LPG ACS Preparation Workbook.
This specialist self-study workbook is designed to assist candidates preparing for relevant domestic natural gas to LPG fuel changeover competency assessment, including CONGLP1.
The workbook supports structured independent revision and helps candidates develop their understanding of LPG-specific principles alongside the technical reference handbooks.
Used together, the two 2026 technical publications and the preparation workbook offer an integrated approach to technical learning and ACS fuel changeover revision.
Natural Gas to LPG Conversion – Why Specialist Knowledge Matters
Although domestic natural gas and LPG systems share many common engineering principles, there are important differences in fuel characteristics, installation arrangements, operating requirements and safety considerations.
Engineers extending their existing domestic natural gas competencies to include LPG must understand the additional technical and safety requirements relevant to the work they intend to undertake.
The ViperGas Domestic NG to LPG Changeover Collection supports that learning process by combining established domestic gas reference material with specialist LPG technical appendices and targeted assessment preparation.
Prepare for LPG ACS Fuel Changeover Assessments
The Accredited Certification Scheme (ACS) provides a recognised framework for assessing gas engineers' competence in specified areas of gas work.
Engineers seeking to extend their domestic natural gas competencies to LPG may need to undertake the relevant fuel changeover assessment and any additional appliance or installation-category assessments applicable to their intended work.
This collection provides:
- Domestic natural gas technical reference material
- Specialist LPG fuel changeover information
- Structured ACS preparation exercises
- Resources for independent study and revision
- Supporting material for refresher training
Important: These books are technical reference and training-support publications. They do not replace practical training, formal assessment or the necessary competencies and registration required to undertake gas work.
Who Should Buy This Collection?
- Qualified domestic gas engineers looking to extend their competencies into LPG
- Heating and plumbing engineers undertaking appropriate LPG training
- Gas engineering trainees studying domestic gas and LPG fuel changeover
- ACS assessment candidates preparing for CONGLP1 and relevant LPG assessments
- Gas training centres and colleges requiring technical reference and revision resources
- Employers supporting the technical development of their engineering teams
About ViperGas Technical Publications
ViperGas publishes specialist technical reference books and self-study materials for gas engineers, trainees and training organisations.
Its technical library covers domestic gas, commercial gas and LPG, including installation, testing, combustion, ventilation, appliances and gas safety procedures.
Browse further titles in our ViperGas technical handbooks and ACS preparation books collection.
Product Information
| Publisher | ViperGas |
|---|---|
| Collection | Domestic NG to LPG Changeover |
| Domestic Handbook Edition | 2026 Edition |
| LPG Appendices Edition | 2026 Edition |
| Additional Workbook | Domestic NG to LPG Fuel Changeover ACS Preparation |
| Format | Printed technical publications and study workbook |
| Main Subjects | Domestic Natural Gas, LPG, Fuel Changeover, Gas Safety and ACS Preparation |
| Product SKU | 994401 |
Frequently Asked Questions
Does this collection include both new 2026 handbooks?
Yes. The collection includes the 2026 ViperGas Domestic Natural Gas Handbook and the 2026 LPG Fuel Changeover Appendices, together with the Domestic NG to LPG ACS preparation workbook.
What has changed in the 2026 Domestic Natural Gas Handbook?
The 2026 edition introduces a new three-book learning format, incorporates IGEM/UP/1B Edition 4 guidance and includes a dedicated chapter on CO, CO2 and fumes investigations.
What has changed in the 2026 LPG Fuel Changeover Appendices?
The 2026 edition features an updated wire-bound format and revised chapter organisation. The technical content remains unchanged from the preceding edition.
Is this collection suitable for CONGLP1 preparation?
Yes. The collection includes a dedicated domestic natural gas to LPG fuel changeover ACS preparation workbook, together with both natural gas and LPG technical reference publications.
Can I buy the ViperGas handbooks separately?
Yes. Individual ViperGas technical publications and workbooks are available in our ViperGas books category.
Bulk Orders for Gas Training Centres & Employers
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