I bought a floor standing gas stove, connected the hose to the 9 kg bottle directly with the same standard hose and valve used for my 2 plate stove. The bottle is next to the stove.

There is a problem with the oven now the agent for the stove has indicated that they cannot repair the stove under warranty because i dont have a certificate of compliance for the installation.

Do i need a certificate if the bottle i inside next to the stove?

Do i need a certificate every 3 months when i change the bottle?

If i toss the stove and go back to my 2 plate, do i need a certificate?

If i use a gas appliance like a free standing gas heater which i see many at peoples house, do you need a certificate.

I am sure there are many people out there wanting answers to these question. Is there a website i can get answers or is there someone here suitably qualified to answer these questions.