Quote:
Originally Posted by jpmihalk
Jamie is spot on, it is about what you want to run on the inverter. For some, it is the entertainment systems. For others, it could be the fridge (and maybe also the entertainment systems.) I would think a 1KW inverter would work fine for entertainment or to power a residential fridge (probably not both though.) We have an 1800W inverter that handles the residential fridge and the entertainment systems.
FYI, not all inverters are the same. There are pure sine wave (PSW) vs. modified sine wave (MSW) inverters and the PSW inverters are more expensive but better handle electronics as they mimic the AC power from a generator or shore power. MSW inverters are cheaper as they use a square wave and can mess up sensitive electronics.
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Actually, it's motors that don't like the MSW inverters. Most electronics just take the AC and rectify it to DC anyway so the MSW makes no difference
UNLESS it is cheap electronics with little or no filtering of the rectified DC output. With poor or no filters the high frequency harmonics get through and mess with the DC circuitry.
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