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Old 07-02-2014, 07:25 PM   #1
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Just Curious

I am new to the forum as well to being a new owner of an A class. I have a couple questions regarding upper priced A class MHs.

On a 40 foot Tiffin DP, with a residential refrigerator and a 50 amp service, do you need to run your generator while you travel down the road to keep food cold in the icebox? Or is there an inverter big enough to handle that? Are there refrigerators available in these upper class rigs that run on LP as well as electric current? Just wondered in case I want to trade up, LOL!
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Old 07-02-2014, 08:16 PM   #2
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Quote:
Originally Posted by DaveBunker View Post
I am new to the forum as well to being a new owner of an A class. I have a couple questions regarding upper priced A class MHs.

On a 40 foot Tiffin DP, with a residential refrigerator and a 50 amp service, do you need to run your generator while you travel down the road to keep food cold in the icebox? Or is there an inverter big enough to handle that? Are there refrigerators available in these upper class rigs that run on LP as well as electric current? Just wondered in case I want to trade up, LOL!
Welcome to iRV2 Dave. There is a Tiffin Forum where you might find someone who can answer your question quickly, especially if you post it as a question about residential refrigerator. JMHO I don't know the answer to your question.

Glad you joined. Happy travels and be safe.
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Old 07-02-2014, 08:29 PM   #3
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The inverter on ours works good, kitchen aid double door w/bottom freezer.
Switches from shore power to inverter automatically . See sig.
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Old 07-02-2014, 08:37 PM   #4
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The inverter draws power from the house batteries and all batteries are charged by the alternator. This is why an alternator for a MH is a very high priced item.

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Old 07-02-2014, 09:22 PM   #5
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The alternator is probably 60 amp, way more than enough to run the fridge while driving. Your house batteries will most likely run the fridge for 24 hours or more when boon docking.
You do want to leave the inverter on all the time. No reason to ever shut it off unless putting the unit in storage.
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Old 07-02-2014, 09:34 PM   #6
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Dave Your inverter will power your fridge when not hooled to shore power. If you are talking about moving up to a higyer priced MH you will probably find out that most of those coaches are all electrics, that'll mean bigger battery banks too.
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Old 07-02-2014, 10:26 PM   #7
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You didn't have give a model or year of your Tiffin, but their electrical setups are made to run residential refrig. Some 40' buses had a 3000w pure sine wave inverter and others have a 2000w inverter with an electrical system that would drop other high loads automatically. Just turn your inverter on and keep tabs on your coach voltages. With the engine running, you'll probably end up at 12. 7 or 12.8 (full charge) after a day's run. To be sure try to turn off your automatic ice maker and auto defrost if possible when traveling. Also, if you have the optional solar panel installed on some 40's, this will help keep your batteries up full.

If you could give your model, year and number of house batteries I could give you some additional ideas to help. We boondock all the time in our 2013 Bus and did it as well in our old 2008 4o' Bus.
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Old 07-03-2014, 05:40 AM   #8
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The alternator is probably 60 amp.
More like 160 amp...
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Old 07-03-2014, 07:44 AM   #9
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On our Tiffin we have an RR and we can run 8 hours straight and not drain the house batteries (on inverter). No problem unless you have old or weak batteries it isn't a big deal at all.
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Old 07-03-2014, 11:05 AM   #10
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Dave, I run my fridge on the inverter while driving. I have a 2000 watt inverter so there's plenty of power. Just don't see any reason to pay for propane!
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Old 07-03-2014, 11:25 AM   #11
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Our coach has a dedicated inverter for the residential fridge and two dedicated 6-volt batteries. No Problem.

Don't be to let the generator do the work either. They are like sled dogs...they love to run!
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Old 07-03-2014, 12:25 PM   #12
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H. Miller, thanks for the catch. Yes, 160 amp.
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Old 07-03-2014, 12:43 PM   #13
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[QUOTE=DaveBunker;2120323]
1. "do you need to run your generator while you travel down the road to keep food cold in the icebox?"

2. "Or is there an inverter big enough to handle that?"

3. "Are there refrigerators available in these upper class rigs that run on LP as well as electric current?"
QUOTE]

1. No
2. Yes
3. No



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Old 07-03-2014, 02:33 PM   #14
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Thank you all for your quick response. I figured as much. No to make a down the road change. $$$$$$
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