Just spoke with tech support at Landa, they said it’s called a downdraft style burner. He thought they were coming back into style and Karcher was looking into doing another one. Apparently he thought they’re MORE efficient, but i didn’t ask why he thought that. Anyways, he provided me with the service manual for my GTO. They confirmed it was likely a Wayne burner that was modified to be used in this downdraft configuration. Also got the specs on the nozzle, it’s supposed to be a 2.0gph 60deg. Opened it up yesterday and confirmed the nozzle is just your standard Delvan 2.00 60deg A.
Unfortunately the inner wall on the burner tank is really rusted up and badly degraded. This won’t allow proper airflow needed to get a good burn. The air needs to be directed between the inner and outer walls to the top of the tank where it mixes with the fuel. I got some sheet metal and steel pop rivets today so I can make a new inner wall.
Also confirmed that the termister wires were broke off, so the thermostat had no way of regulating temperature, as suggested by marinegrunt this was likely the cause of the melting pipes for the last owner.
Found the termister under the machine in this tee fitting located right after coil. The wires are totally ripped out so it’ll need to be replaced.
