Question:

I recently purchased at Coleman Powermate 5000 Generator to be used in the event of a Power Outage.  I plan to run the generator in my attached garage beside the garage door.  At present I would have to leave the garage door open approx. one foot to allow the generator’s exhaust to go outside.  I was wondering if I could use some kind of a flexible tubing to attach to the muffler so I could run in under the garage door which then would only have to be open approx. 2 inches. The Generator is powered by a Briggs and Stratton 10 HP Aircooled Motor. The standard muffler is approx. 3" in diameter.  Would adding tubing to the muffler do any harm to the engine.?? Bill

Response:

I recently purchased at Coleman Powermate 5000 Generator to be used in the event of a Power Outage.  I plan to run the generator in my attached garage beside the garage door.  At present I would have to leave the garage door open approx. one foot to allow the generator’s exhaust to go outside.  I was wondering if I could use some kind of a flexible tubing to attach to the muffler so I could run in under the garage door which then would only have to be open approx. 2 inches. The Generator is powered by a Briggs and Stratton 10 HP Aircooled Motor. The standard muffler is approx. 3" in diameter.  Would adding tubing to the muffler do any harm to the engine.?? Bill The best suggestion that I can make is to visit some of the Car Garages in the area. Some have setups that allow them to cover one (or Both) of the exhaust pipes and duct them to the outside during cold weather. Now for personal experience, I tried something similar using a 6KW honda generator. What I did was to attatch a 3 foot length of flexible steel tubing from the muffler ( it just fit over the muffler, and I used a hose clamp to tighten firmly around the muffler itself) and the flex tubing then went to a 35 foot length of old oil well drill casing that was 4 inches in diameter. The generator worked great for about 2 minutes, but the exhaust could not be forced out of the pipe fast enough. So, at the end of the well casing, I installed an electrical fan than created a partial suction by making a box that had two inlets, one for exhaust, and one for fresh air. The fan that I used was an old one out of a central air conditioner. This arrangement has worked for about 8 months now, and there problems have not arisen (yet). There was a problem with the fan getting hot due to the small amount of exhaust moving through it, but then I made a second hole in the fanbox for a fresh air intake. I guess it allowed more air to cool the fan motor. Yo probably will not have to go through as many troubles as I did, if you don

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