Secondary research paper along with design. things to b e covered in the paper as follows:

1. Safety issues in renewable hydrogen production/generation process.
2. Safety issues in using hydrogen for domestic heating.
3. Safety issues when changing the boilers into hydrogen base boiler in industries.

Design area:
1. Domestic heating system based with hydrogen compared with natural gas and one as mixture (hydrogen and natural gas).
2. Same design analysis for industrial (reboiler).
3. HAZOP study for the processes.

Literature review:
1. Background of the problem, issues of renewable heating and sustainable heating.
2. Describe standard process foe hydrogen production (electrolysis).

Safety considerations for hydrogen and hydrogen methane mixtures