Anyone know what these are for ?

[kradman]

Been offered these but have no idea what they were used for anyone know ? thank you for any help

[slados28]

Here's what appears to be a similar item --- appears to be a heater of some sort, the one in the link supposedly for vehicles

The Collector's Guild

[bigmacglenn]

It's a heating system designed to warm vehicle engines...
cheers, Glenn

[kradman]

Thank you guys i may buy them as its something that interests me

[SteveR]

Great for pan pizza's too.

[Gunny Hartmann]

Great for the winter if you have an out doors "thunderbox"!...

[Martin Bull]

Eltron apparently specialized in producing immersion heaters and other electrical elements for heating water. During WWII they were mainly contracted to do work for the Luftwaffe. They were bombed out of the Tempelhof works in 1943 and moved production to Holzminden.