R
Richard Owen
I need to hear the experience of owners who have the Grunnert 110V refrigeration compressors. We found that the system on our 460 was actually quite efficient - it ran for about 20 min. at a time and there were 4-5 hrs between cycles if the fridge was accessed infrequently. keep in mind that we sail in Canada - west coast so the water isn't that warm, and the weather on this trip was pretty good for this area - up into the 80's most days. Anyway, the total usage was about 2 hrs per day at an average of 70 amp hours which is about 140 amp hours per day. Add to this the other uses and I think 200 A/H per day is pretty easy to get to if you aren't being stingy. The alternator is 140A but realistically puts out about 100, so that means running for 2 hrs a day to keep up. The problem is in good sailing weather, we go sailing. And sometimes we want to sit around for a few days in calm weather. Neither of these is conducive to battery re-charging. We also don't like sitting at anchor with the engine running. So, is a generator normally being installed on these boats?Has anyone tried one of these 12V diesel chargers? Do they work OK?Thanks in advance.ROwen