Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 06-29-2014, 09:28 PM   #1
Junior Member
 
Join Date: Jun 2014
Location: Utah, the high west desert.
Posts: 13
CPAP Machines

We just bought a class A Newmar Mountain Aire MH. It's a 1994 with no owners manual. There are solar panels with an Inverter. This is all Greek to me. Hubby recently started using a CPap machine at night. Will we be able to plug this in and run it at night?

Thanks, Sally
__________________

__________________
HomeAway is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 06-29-2014, 09:33 PM   #2
Senior Member
 
Join Date: Jan 2010
Location: Okanagan valley British Columbia
Posts: 707
He will be fine. The inverter converts the power from the solar panels and house batteries to 110VAC, same as your house. To make sure, plug a volt meter into the outlet he will be using.
__________________

__________________
RoyM is offline   Reply With Quote
Old 06-29-2014, 09:37 PM   #3
Senior Member
 
Tony Lee's Avatar
 
Join Date: Sep 2012
Location: Peru heading for Brasilia, Brazil
Posts: 2,117
Assume you are talking about using it when boondocking.

Depends on battery capacity and efficiency of the inverter. Some appliances don't play well with modified square wave inverters. Also depend on whether he can go the night without using the humidifier feature as that can make a huge difference in power consumption.

Can also check if that particular CPAP can be run direct from a 12V converter available from the manufacturer.
Another possibility if your big inverter isn't suitable and a 12V supply isn't available, is to get a small sinewave inverter just big enough to run the machine and plug that into a 12V outlet.

CPAP suppliers get these sort of questions all the time and they should have solutions to suit all RVers from those who sleep in the back seat of the car to a 45' tag-axle MH
__________________
Tony Lee - International Grey Nomad. Picasa Album - Travel Map
RVs. USA - Airstream Cutter; in Australia - MC8 40' DIY Coach conversion & OKA 4x4 MH; in Germany - Hobby Class C; in S America - F350 with 2500 10.6 Bigfoot camper
Tony Lee is offline   Reply With Quote
Old 06-29-2014, 09:38 PM   #4
Registered User
 
Fleetwood Owners Club
Freightliner Owners Club
Join Date: May 2011
Location: Silicon Valley, CA
Posts: 1,857
CPAP

The best way is to have a CPAP machine that will run directly on 12v. Some do, some don't.

Second best would be a small dedicated inverter to run only the CPAP.

Worst would be using your main inverter.
__________________
Muddypaws is offline   Reply With Quote
Old 06-29-2014, 09:52 PM   #5
Senior Member
 
TonyDi's Avatar


 
Join Date: Feb 2011
Location: Point Pleasant Beach, NJ
Posts: 10,464
__________________
Tony & Ruth........... FMCA#F416727
Newmar Dutch Star 4320, Spartan MM Chassis, Cat C9, Jeep Grand Cherokee Hemi, Blue Ox Aventa LX, and Brake Buddy. TST 507 TPMS
TonyDi is offline   Reply With Quote
Old 06-29-2014, 09:56 PM   #6
Senior Member
 
Skip426's Avatar


 
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 14,971
We picked up the 12v adaptor for the DW's cpap. That was easier than rewiring the bedside 110v plug to the inverter.
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 06-30-2014, 04:35 PM   #7
Senior Member
 
Country Coach Owners Club
Join Date: Jan 2006
Location: Redding
Posts: 3,412
Try it while the rig is in your driveway or storage area for one night. That might allow for adjustments before you start to travel with the Cpap.
__________________
Dean
1995 CC Magna #5280
C8.3L 300hp Cummins, 31,000lbs
deandec is offline   Reply With Quote
Old 06-30-2014, 05:12 PM   #8
Member
 
Robertandkim's Avatar
 
Join Date: May 2013
Posts: 74
My cpap can use 12 volt but my wife's is 24 volt.
__________________
Robertandkim is offline   Reply With Quote
Old 07-01-2014, 12:44 PM   #9
Senior Member
 
Craigls2's Avatar
 
Fleetwood Owners Club
Freightliner Owners Club
Join Date: Sep 2012
Location: WI
Posts: 271
Quote:
Originally Posted by Muddypaws View Post
The best way is to have a CPAP machine that will run directly on 12v. Some do, some don't.

Second best would be a small dedicated inverter to run only the CPAP.

Worst would be using your main inverter.
Muddypaws, please explain. I'm sure I'm missing something here. We run my wife's CPAP occasionally off the inverter and it works fine and is very convenient because we just plug it in. Why would you want to add extra plugs or inverters if you already have one?
__________________
2013 Fleetwood Discovery 40G / 2012 GMC Acadia
Craigls2 is offline   Reply With Quote
Old 07-01-2014, 12:57 PM   #10
Senior Member
 
Old Scout's Avatar
 
Join Date: Nov 2005
Posts: 3,938
Think the contributor's point is that in general, inverters are somewhat inefficient when operating--just to make them hum consumes bat power. So if you run yr MH 2000 watt inverter all night, just to keep the a small Cpap operating, you will use a lot of battery power. However, if you are already running the inverter for other things like refrid or something else, its a who cares???? If you are using the inverter as back-up in case of a shore power failure, it is even less of a who cares??? Depending on how big your MH inverter is and how many bats you have in your house bank, or you dont have an inverted plug in proximity--some efficiency could be gain by using a separate, smaller inverter when boondocking.
__________________
Old Scout
2003 40' MDTS
Garden Ridge, Texas
Old Scout is offline   Reply With Quote
Old 07-01-2014, 01:31 PM   #11
Senior Member
 
Craigls2's Avatar
 
Fleetwood Owners Club
Freightliner Owners Club
Join Date: Sep 2012
Location: WI
Posts: 271
Ahh, thanks for the explanation. We have a residential fridge so if we aren't plugged in, we have it on.
__________________
2013 Fleetwood Discovery 40G / 2012 GMC Acadia
Craigls2 is offline   Reply With Quote
Old 07-01-2014, 07:45 PM   #12
Registered User
 
Fleetwood Owners Club
Freightliner Owners Club
Join Date: May 2011
Location: Silicon Valley, CA
Posts: 1,857
Sorry, Been busy

Yes, what I was trying to say was that if you run a 2000 watt inverter to run a 50w CPAP machine it will waste a lot of battery power.

I wouldn't run a 2000 watt inverter for just a refer either.

I have a bad history with inverters.
__________________
Muddypaws is offline   Reply With Quote
Old 07-01-2014, 11:46 PM   #13
Registered User
 
Join Date: Apr 2013
Location: NV
Posts: 2,227
its just a fan run it,,,,,,its barely a draw
__________________
johnnyreno is offline   Reply With Quote
Old 07-02-2014, 09:41 AM   #14
Senior Member
 
Craigls2's Avatar
 
Fleetwood Owners Club
Freightliner Owners Club
Join Date: Sep 2012
Location: WI
Posts: 271
Quote:
Originally Posted by Muddypaws View Post
Yes, what I was trying to say was that if you run a 2000 watt inverter to run a 50w CPAP machine it will waste a lot of battery power.

I wouldn't run a 2000 watt inverter for just a refer either.

I have a bad history with inverters.
I didn't realize an inverter used that much battery power to sit idle or to provide for small draws. We have 6 6 volt house batteries and a Magnum 2000 watt inverter and I always assumed it isn't an issue.
__________________

__________________
2013 Fleetwood Discovery 40G / 2012 GMC Acadia
Craigls2 is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Adding receptacles to inverter circuit. LakeKerrGuy National RV Owner's Forum 4 05-25-2014 06:11 PM
Battery issues involved with a breathing assist Oxygen concentrator glemo81540 Class A Motorhome Discussions 10 10-01-2013 04:41 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:11 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.