Unfortunately, the product was not functional. When we let him sample running, we noticed,
that only one of the heaters worked. So back and replacement purchases. Unfortunately, the same thing,
but this time the other heater tube. To give Amazon or the vendor is still a chance, we have
asked a third time to a working replacement. Nope. The same again.
Now we have one of Reer. And he does what he should do: heating, in two stages. TOLL!