How to deal with Generator Noise and Heat

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A genset can be a noisy, annoying piece of home equipment. The best way to get rid of the noise is to get rid of the generator!

The second best plan is to place the unit further away in a sound-proofed (or dampened) shed or enclosure. You can place gens in noise- and weather-proof enclosures on a cement pad like that used for central air conditioning units. Noise-proof sheds can be built from wood with a floating deck floor which does not touch the shed's walls. This type of construction prevents genset engine noise and vibration from leaving the shed. Pack the walls solidly with fiberglass, rock wool or cellulose insulation. Then add plywood or other materials that reduce the deafening genset noise.

It is a fact that all internal combustion engines generate quite a bit of waste heat, so a small dryer vent or hole won't be much use. The exhaust gas exits the muffler vertically and passes to another automobile-style muffler before exiting the building to further reduce noise.

Generator Operation

You will need the right power cable with enough slack to run over or under the generator and the inverter. A unit that requires manual start-up means you have to go to the shed every time to start or stop the genset. That's fine in summer but less so during winter. Automatic controls are a life-saver and are not costly to add. Put another direct-burial cable of #14 AWG rating in the underground trench with the power supply wiring to turn the generator on and off. It can also automate the inverter's or battery voltage regulator's functions.

Position the generator building such that winds will blow the exhaust gases away from the house. Make sure the unit's ventilation vents or louvers point away from your home, too, so that a peaceful operating environment is achieved.