Werry quick deliver, good box, good product good price, but . . .product information on this website is misleading.
The controller do not match the picture, the one at picture is possible to open Admin mode with 4 digit code and adjust fuel pump Hz and fan speed, low and high, with this one you can not, and i was order it because picture show it have the better controller.
Just tested it, on full heat P6 it use 0,35 l/h, about 3kw of heat, not as specification says, 0,11 to 0,51 l/h. Controller set at P 1 the Low heating 0,15 l/h, P3 the Medium heating 0,25 l/h. The heater is quiet except the ticking pump, heater gives a lot of hot air compere to size.
User manual is s . . . .t, it's not even made for this controller, even it has a picture on it, or are there missing pages?
3 kW is to little . . . so I need to order another, maybe the 8 kw here that says should use 0,16-0,62 ml/h.
Marijan 
Nico 
jarkko 
Ps 
Pavel 
