C-Pap Machine while boondocking - Page 2 - Fiberglass RV


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Old 04-27-2016, 11:44 AM   #15
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Name: jon
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cpap 'offline'

hi, my wife is a user of the cpap. basically our solution is a dc to dc converter. i think 12 volt dc to 24 volt dc. we have a round accessory plug and it goes into there. my wife operates 'dry' which reduces the power utilization of humidifier. we bought the unit from the cpap supplier for about $90. it is about the size of a cigar box. i can't tell you the burn rate but it can be calculated. in our case we have 2 large gel cell batteries in parallel.

note; as i recall, it is more efficient because if you are boondocking you have to invert 12vdc to 120ac and then back to 24 dc which consumes more power. the natural input of our unit is 24vdc.

good luck with your effort
jon of sequim
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Old 04-27-2016, 11:56 AM   #16
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Thank You for your info Jon.
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Old 04-27-2016, 12:39 PM   #17
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Please be VERY careful about running ANY generator indoors. All internal combustion engines produce carbon monoxide in exhaust vapours. Even a small amount of CO can kill you! You won't need your CPAP machine EVER again. My CPAP machine will run 1 night on a 120 ah deep cycle battery with humidification on without dropping below 50% charge. Several nights without humidification!
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Old 04-27-2016, 01:31 PM   #18
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I don't think anyone is suggesting running a generator inside...

Storing inside, taking a picture inside... possibly safe enough.
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Old 04-27-2016, 03:47 PM   #19
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Name: Wayne & Barbara
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If you go with two 12volt batteries, and use them separately, They can both be charged from the TV while traveling, but you will need a special device that charges each battery alternately. One company that makes them is, I think, "Sure-Power" Or, Camping World may have them. Do not try to connect both batteries in parallel. If the drain off them is unequal, they will not charge equally.

As to running a generator inside the trailer DONT!!!
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Old 04-28-2016, 12:54 AM   #20
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Originally Posted by KenjiFox View Post
Given the length of your trip, and how you don't always plan on being at a powered campground....
You may want a small generator. Before anyone starts throwing rocks at me please note that I only mean this for when you are parked AWAY from everyone else. Do NOT run any generator all night near others. No matter how quiet.


That said, this is my all time favorite little generator. It even runs my AC, it's cheap, light, small, pure sine wave so it's safe for computers and electronics, and it seals vapor tight so there is no smell even when you take it indoors.
Oh and I forgot to mention (edit!) It's QUIET! Nearly Honda or Yamaha quiet.
I LOVE this thing.

Here is a picture of mine sitting in my Scamp's sink. It's a small generator that only weighs about 23lbs. Yes, I installed a fairly large sink, but still.

If you plan on parking out in the middle of nowhere and boon docking a lot, this might be your best bet. You could then run the water heaters and all on the c-paps and still wake up with fully charged batteries.

IG800w (all models of this are the same thing, different labels slapped on.)

Links;
IG800w1
IG800w2
IG800w3

Look for a price of about $250 to $280. It fluctuates.
The Dirty Hand Tools brand just popped up with these. They beat me to importing the 1200w and 2000w versions! I love these so much I intend to brand them and sell them myself. They appear to have the best price on the 3,200 watt version if you need a generator with some major kick to it. It's even got remote keychain electric start.
Hi I'm Michael and enjoyed your post. My question is, are you saying the 800 watt generator runs your Scamp AC? I thought that the AC wattage would be considerably higher. Thanks
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Old 04-28-2016, 08:55 AM   #21
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We run two CPAP machines, also. We turn off the humidifiers. We have two Schumacher power packs from Walmart. One for each machine. We purchased them a few years ago and keep them plugged in at home, until needed.

I think they are each 400s. We have never had a problem with them lasting through the night. We have adapters to recharge them, the next day, as we travel to our next stop.

We use them at home, to sleep, if there is a power outage.

Have been watching for new ones, since these are a few years old. We keep check on them to make sure we won't get caught without a good nights sleep.
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Old 04-29-2016, 02:47 AM   #22
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Originally Posted by mbbear View Post
Hi I'm Michael and enjoyed your post. My question is, are you saying the 800 watt generator runs your Scamp AC? I thought that the AC wattage would be considerably higher. Thanks
I installed a 5000 BTU window unit with an EER of 9.2 that used r410a. It ran that. I replaced that now with my much older but better Daewoo unit that is 5,350 btu with an EER of 10.7 that uses r22.
It runs that as well. It not only starts the compressor, it restarts it when hot, and does so with the econ switch on and while running the other stuff in my trailer.
It should run any modern high efficiency 5-6k BTU unit in the EER level of 11+.

It would not run a roof top AC though.
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Old 04-29-2016, 02:56 AM   #23
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Originally Posted by billmccracken View Post
Please be VERY careful about running ANY generator indoors. All internal combustion engines produce carbon monoxide in exhaust vapours. Even a small amount of CO can kill you! You won't need your CPAP machine EVER again. My CPAP machine will run 1 night on a 120 ah deep cycle battery with humidification on without dropping below 50% charge. Several nights without humidification!
I do not run my generator inside of my Scamp. I didn't mean to confuse you with that photo, it was merely a size ref.

I have ran it in the back of my car before. Aimed the exhaust out of my tailgate which was cracked open about 3 inches. It worked great and there was no exhaust smell inside as the high velocty exhaust pulled lots of fresh air along with it.
I was not in the car at the time, I was in the trailer hooked to it while parked at a hotel for a convention. I didn't have my solar panels up for that one and only had an old dead marine battery to keep my fridge on for three days.

I also have a CO ppm meter with an LCD. It reads right down to one ppm.
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Old 04-29-2016, 06:36 AM   #24
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AC from small Generator

LIke Kenji, we also have a 5000 BTU AC unit, our's is i the closet and vents thru the floor. These AC units only draw 5 amps at 110 VAC.

For us 5000 BTUs is enough to keep us cool.
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