chimney sweep / animal removal recommendation

[Carmen Graves]

Hi BP. We have an old wall furnace that vents out to the roof. Our tenant is experiencing rotten smell coming from the furnace when it is turned on and the furnace isn’t venting properly. We suspect a dead animal is blocking the vent/chimney. Does anyone have a recommendation for a chimney sweep? We have called a bunch of chimney sweeps and HVAC contractors, but they said that they either can’t remove dead animals or can’t deal with possibly needing to remove the furnace. Any advice or recommendation would be very much appreciated!