PAS 4444
Hydrogen ready appliances, the pathway, published by the Heating and Hotwater Industry Council (HHIC) in February 2021, states: ‘BSI has developed a new specification, PAS 4444, to be used primarily in the Hy4Heat programme. The aim is that, along with the current European and British Standards, it forms the basis for wide-scale standardisation of hydrogen-fuelled appliances. It is an additional guide to be followed by appliance manufacturers and Notified Bodies regarding functionality, safety, installation, operating and servicing requirements for hydrogen-fuelled and dual-fuel hydrogen/natural gas convertible appliances.’
The Department for Business, Energy and Industrial Strategy (BEIS) established Hy4Heat to explore a transition from natural gas to hydrogen for cooking and heating in the UK. PAS 4444 was created: ‘to support this programme but could also form the basis for wide-scale standardization of hydrogen-fuelled appliances by providing principles for manufacturers regarding the safety and functionality of hydrogen-fuelled and hydrogen/natural gas dual-fuelled or converted appliances including: boilers, cookers and fires.’
Publicly Available Specifications (PAS) are fast-track standards, specifications, codes of practice or guidelines developed by sponsoring organisations to meet an immediate market need following guidelines set out by BSI. Within 2 years they are reviewed to assess whether they should be revised, withdrawn, or become formal British Standards or international standards.
PAS 4444:2020+A1:2021, Hydrogen-fired gas appliances. Guide, supersedes PAS 4444:2020, which has been withdrawn. It is available at https://shop.bsigroup.com/products/hydrogen-fired-gas-appliances-guide-1/standard
[edit] Related articles on Designing Buildings
- Blue hydrogen.
- British Standards Institution.
- Boiler.
- Domestic hydrogen-ready appliance.
- ECA responds to the UK hydrogen strategy.
- Heating.
- Hot water.
- Hydrogen ready domestic cooking appliance.
- Hydrogen ready local space heater.
- Hydrogen.
- Hydrogen-ready boiler.
- Publicly Available Specifications.
- Water.
Featured articles and news
How can digital twins boost profitability within construction?
A brief description of a smart construction dashboard, collecting as-built data, as a s site changes forming an accurate digital twin.
Unlocking surplus public defence land and more to speed up the delivery of housing.
The Planning and Infrastructure bill oulined
With reactions from IHBC and others on its potential impacts.
Farnborough College Unveils its Half-house for Sustainable Construction Training.
Spring Statement 2025 with reactions from industry
Confirming previously announced funding, and welfare changes amid adjusted growth forecast.
Scottish Government responds to Grenfell report
As fund for unsafe cladding assessments is launched.
CLC and BSR process map for HRB approvals
One of the initial outputs of their weekly BSR meetings.
Architects Academy at an insulation manufacturing facility
Programme of technical engagement for aspiring designers.
Building Safety Levy technical consultation response
Details of the planned levy now due in 2026.
Great British Energy install solar on school and NHS sites
200 schools and 200 NHS sites to get solar systems, as first project of the newly formed government initiative.
600 million for 60,000 more skilled construction workers
Announced by Treasury ahead of the Spring Statement.
The restoration of the novelist’s birthplace in Eastwood.
Life Critical Fire Safety External Wall System LCFS EWS
Breaking down what is meant by this now often used term.
PAC report on the Remediation of Dangerous Cladding
Recommendations on workforce, transparency, support, insurance, funding, fraud and mismanagement.
New towns, expanded settlements and housing delivery
Modular inquiry asks if new towns and expanded settlements are an effective means of delivering housing.
Building Engineering Business Survey Q1 2025
Survey shows growth remains flat as skill shortages and volatile pricing persist.