Since a week, have the new elan 10 hot air heating...

Since a week, have the new elan 10 hot air heating installed. The replacement for my old B8 MDG. I must confess, I miss my old hot air heater that made the room nice and warm within minutes. Perhaps the thermostat (also an old animal) was slightly higher, I am missing something in the comfort in the living room. The installer has already been 4 times and has changed the settings, it seems better now, but still .... The new Elan 10 may be more economical, but comfort remains the most important and I miss something with my new heating.