Heart Inverter identify?

[hogi6123]

My bus has the pictured inverter installed.  Besides the brand name on the front, it has a tiny 'UL approved' label on the side with the number '94k1', that's all the identification I can find.  That looks like it matches up with a Freedom 10 (1000 w).  However the circuit breaker on the front is 25A, which matches with a Freedom 20 (2000 w).  How would I better identify this?  Is it intended for 12V or 24V?

The charging says it's working, but the inverted current seems to be very bad.  I turned on one lamp with 120W of bulbs, it comes on at about half brightness and pulses.  I can also hear the unit's fan pulsing with the bulbs.

Is there a replacement inverter you would recommend?  I suspect I would be happy with 2000-3000 w, and 12V or 24V would be fine.

[thomasinnv]

That looks to be the predecessor to the freedom 458. (Basically the same unit, just a name change) The freedom 458 would be the easiest drop in replacement, but it is a modified sine wave. (As is the one you currently have) if you want to spend a little more money and upgrade to a much better unit I would recommend the magnum MSH3012M hybrid inverter. Wonderful unit.

Edited to add: The freedom 458 has been out of production for several years but it was the most common inverter for a long time, so there are still many used and rebuilt units to be had. For anyone that goes to Quartzsite in the winter,  I can tell you where to get them right off the shelf.

[hogi6123]

Thanks for the good word on Magnum.  My batteries and inverter were wired to the generator and shore plug only.  I removed my old inverter and generator and am planning to install a Magnum msh4024m wired to the engine alternator.  I think that best fits my expected usage -- 110v while driving, mainly for a/c; plugged in most of the time when not driving.