Ventless propane problem??

[Bmore]

Hello,

I have a ventless propane blue flame heater in my basement. It is currently an orange flame heater. Is that a problem? Running on a relatively fresh tank of gas. It has burned flawlessly for a few seasons but recently showed a faint starving flame. Now the flame is normal intensity but not blue? Bad heater??

Thanks

 

[DAKSY]

Might be time for a service. Thorough cleaning of the burner.
Dust. Pet hair. Pet dander. Aerosol sprays. All (& more) will
land on the burner of a home -vented unit.

 

[Heatsource]

yes its an issue, can put carbon in the air...