specifically, will this idea have a negative/harmful effect on the engine from possible back pressure issues?
205cc gas engine, stock exhaust is a 3/4" nipple pipe on a small muffler.
i want to attach a collar to the face of the muffler and attach flexible metal tubing ( 3 or 4 inch) to move the exhaust point away from the house. i want to be able to run the genny in my shed, but it's too close in my opinion. carbon monoxide could possibly seep up under the bottom edge of the siding into the house. and there are windows as well, and i want to be as safe as possible. i know cool air can get in through the electrical sockets, and we use child proof inserts in winter to prevent that.
i plan on just opening the shed doors a little and using sheet metal and strong magnets to close the gap,leaving only room for the pipe to run out. the genny would be front and center in the shed.
the prevailing winds come toward the shed doors, so i may need to run the exhaust around the left side of the shed. but i could also do a straighter diagonal run into the driveway and turn the end of the pipe back from the wind direction only at the end.
how long a run is viable for this approach? does the massively larger diameter of the extension compared to the 3/4 inch exhaust help negate back pressure issues? what about bends?
we don't get long outages here, and i really want avoid cutting a hole in the back wall of the shed.
and even if i did that, i'd need a rise to be above the snow line and at least two 90 degree bends.
so i'm not convinced that is actually a better way to go anyway.
i just don't want to damage the engine though.
thanks for reading and possibly sharing advice. here's a pic of the location for reference -
205cc gas engine, stock exhaust is a 3/4" nipple pipe on a small muffler.
i want to attach a collar to the face of the muffler and attach flexible metal tubing ( 3 or 4 inch) to move the exhaust point away from the house. i want to be able to run the genny in my shed, but it's too close in my opinion. carbon monoxide could possibly seep up under the bottom edge of the siding into the house. and there are windows as well, and i want to be as safe as possible. i know cool air can get in through the electrical sockets, and we use child proof inserts in winter to prevent that.
i plan on just opening the shed doors a little and using sheet metal and strong magnets to close the gap,leaving only room for the pipe to run out. the genny would be front and center in the shed.
the prevailing winds come toward the shed doors, so i may need to run the exhaust around the left side of the shed. but i could also do a straighter diagonal run into the driveway and turn the end of the pipe back from the wind direction only at the end.
how long a run is viable for this approach? does the massively larger diameter of the extension compared to the 3/4 inch exhaust help negate back pressure issues? what about bends?
we don't get long outages here, and i really want avoid cutting a hole in the back wall of the shed.
and even if i did that, i'd need a rise to be above the snow line and at least two 90 degree bends.
so i'm not convinced that is actually a better way to go anyway.
i just don't want to damage the engine though.
thanks for reading and possibly sharing advice. here's a pic of the location for reference -
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