This link may help.
https://www.hearth.com/talk/threads/13422/
I have an EF-2 Free Standing. I love it.
It is 24 degrees F out this morning. The living room (stove room) is a comfortable 70 degrees.
Current settings are:
Mode--------------Auto
Dial a fire --------12:30 position
Blower Speed--- 10:00 position
Slide Damper----1/2 way out.
Flame is running about 5" above burnpot. The flame is clean and active. The unburned pellets are just starting to dance in the burnpot.
Heat is pumping into the room.
In the past I have had adjustment problems with the ashpan not being sealed to the bottom of stove.
This allows excess air to leak into the firebox.
Also I had a bad combustion blower.
The combustion blower(one on the left of the stove) runs at a constant speed and draws exhaust gasses from the fire box.
If it is running slow or the vent is not sufficient you could have an exhaust flow problem.
Another area of concern would be your outside air supply. In a mobile home I believe it is mandatory to have an outside air supply.
If that source is blocked/compromised you would have a bad burn happening.
Hearthtools.com has a great troubleshooting section for Enviro stoves. Check it out.
http://www.hearthtools.com/enviro_pellet.htm
Additionally......read your owners manual. Make sure your stove is installed and connected like the manufacturer suggests.
If your stove is installed correctly. And all blowers are running correctly. You should be getting plenty of heat.
Let us know how you make out.
---Nailer---