Doesn't look like anything I've ever seen in the USA.
Possibly a German Company?

Cross posting removed.

"johan" wrote in message
newsart1of3.cSx&bzBvV3DXLMwHbvRC@powerpost2000AA .local...
Hello,

I like to study how this gas burning heating installation is working.

In this posting you can find a picture of a old gas burning heating system,
I do not know the type nor the producer of this hardware.

Please try to help:

1/ post the schematic of this gas burning system.

2/ Or post the exact type or the name of the producing company.

Thanks,

Johan