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Old 11-17-2015, 06:27 AM   #15
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Id go with the forties and keep one of the thirties for a spare or reserve.
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Old 11-17-2015, 06:32 AM   #16
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Another far fetched idea may be mounting a horizontal mh lp tank in the back of the tv and use an extension hose. Safety?
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Old 11-17-2015, 07:54 AM   #17
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A rear ender could be a big bang experience with a propane tank at the back of the tow vehicle
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Old 11-17-2015, 08:10 AM   #18
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Just a thought....
Keep the tanks and cover you already have and get #40 extras for the back of your truck.
Use the cover and hardware to make a new tank cover. Saving most of the $700, after all it's a few radius bends, rivets, and fancy stickers. A good fab guy should be able to bend one for you quickly. Additionally you could always polish your new #40 tanks, omit the tank cover, and have something nice to look at!
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Old 11-17-2015, 10:27 AM   #19
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Boondocking Airstream: Upgrade to 40lb Tanks

The weight gain is a whopping 15# or less after the difference in tank weight and additional propane?
If our ancient 30# tanks ever fail inspection, I'd make the change to 40#s and add gauges and a cover while at it.
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Old 11-17-2015, 11:50 AM   #20
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I know Bold you're done with this upgrade option but I was just curious about your furnace use. We were going through our tanks pretty fast too and so we invested in the $250 wool blanket and wool socks to get us through the night; on the really cold nights we'd go intermittent on the furnace. We would wake up to 40 degrees in the trailer and seeing our breath in the air but a quick blast from the furnace warmed us up in 15 minutes or so. Maybe you're already doing this, so duh.

Of course, with two little ones to keep warm, I imagine it's a bit tougher.

Still, boondocking for three weeks in the desert deep into fall and in the face of winter is pretty awesome to me.
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Old 11-17-2015, 12:53 PM   #21
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Well I don't have an accurate measurement yet. This was a spur of the moment idea that has been tossed around a few times.

You would be gaining 4.2 gallons of propane. The 30# tanks hold 7.2 gallons of propane and the 40# tanks hold 9.3 gallons of propane. I don't think that amount is worth the upgrade cost.

What I don't know is, how much propane the furnace burns in a given interval.

We have cut reflectix for all of the windows, the door, the sky lights, the fans. I even lined the entire wall along our bed. The storage compartment is lined. And I have lined some other areas that seemed drafty.

What I noticed is I filled up one tank and topped off another in Sedona, and then had to refill one tank last week. So that's about 2 1/2 weeks for one tank. Not sure if that's normal or what.

I was going to keep a log book of our furnace use and refill schedule to see if I can create a picture.

We have heavy down comforters. But with the wind blowing up to 50mph gusts out here this week, I think the Airstream is cooling down faster either way at night. Aluminum is thermally conductive.
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Old 11-17-2015, 01:04 PM   #22
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Quote:
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A rear ender could be a big bang experience with a propane tank at the back of the tow vehicle
Wouldn't have to be at the rear, it could be up front wher any auxiliary tank would be placed. Not for me but the op was asking for ideas.
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Old 11-17-2015, 01:13 PM   #23
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A good cheap carrier for 30 lb tank is an old plastic milk crate, not the flimsy ones the real ones that are not used for milk bottles any more, I buy them at Goodwill for about $2 each have several that I carry in my pickup with various "just in case" stuff.
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Old 11-17-2015, 02:09 PM   #24
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I find this info useful.
http://www.missiongas.com/lpgascylinders.htm
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Old 11-17-2015, 02:20 PM   #25
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I don't run a cap on my truck, so the idea of a propane tank sitting in the back won't work for me. But thanks for the ideas.
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Old 11-17-2015, 02:34 PM   #26
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Boondocking Airstream: Upgrade to 40lb Tanks

Quote:
Originally Posted by BoldAdventure View Post
Well I don't have an accurate measurement yet. This was a spur of the moment idea that has been tossed around a few times.

You would be gaining 4.2 gallons of propane. The 30# tanks hold 7.2 gallons of propane and the 40# tanks hold 9.3 gallons of propane. I don't think that amount is worth the upgrade cost.

What I don't know is, how much propane the furnace burns in a given interval.

We have cut reflectix for all of the windows, the door, the sky lights, the fans. I even lined the entire wall along our bed. The storage compartment is lined. And I have lined some other areas that seemed drafty.

What I noticed is I filled up one tank and topped off another in Sedona, and then had to refill one tank last week. So that's about 2 1/2 weeks for one tank. Not sure if that's normal or what.

I was going to keep a log book of our furnace use and refill schedule to see if I can create a picture.

We have heavy down comforters. But with the wind blowing up to 50mph gusts out here this week, I think the Airstream is cooling down faster either way at night. Aluminum is thermally conductive.
Wind chill is not applicable to aluminum.... Only ambient temp and sun change the temp of metals.
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Old 11-17-2015, 02:43 PM   #27
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Well this is cold.
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Old 11-17-2015, 02:45 PM   #28
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I agree, that looks pretty cold!
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