Happy New Year everybody! Wife and I are currently sitting in our Barth at our daugher's house in St Louis area. We recently bought an inverter at local auto parts store. We tried using it on the way here to make coffee but it kept blowing a 15 AMP house fuse. Coffee pot works fine on shore power. We plugged the inverter into one of the power outlets (cigarette lighter type outlet). Wonder if it would be better to hard wire to the house battery.... or should it be the engine battery? Would appreciate any advice to make it work proper.

Fred & Cindy Cook
1990 32' Regency, Cummins

Most coffee makers draw upwards of 1000 watts. If the inverter were 100% efficient (which it isn't) that would draw over 80 amps from the +12VDC source! Cigar lighter outlets are only good for 20 amps max.

Blowing a 15 amp house fuse (is this a +12VDC fuse or 120VAC fuse?) If it is a +12VDC fuse that would make sense as it would be WAY overloaded. Unless the inverter is rated at 2000 watts or more and wired directly to the house batteries or chassis batteries with at least 1/O wire, it will not support a coffee maker load.

Being solar boondockers, we boil water on the stove and use a French press.

It will make the best coffee you have ever had. The better and fresher coffee you buy, the greater the improvement.

If you MUST use an electric CM, don't buy a better inverter. Just run the genset to make coffee. That is much more efficient than running down the battery through a lossy inverter and charging it up again. We do that for espresso.