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Old 12-13-2011, 01:12 PM   #1
Bus Nut
Join Date: Jun 2011
Posts: 751
LP Tank questions

1. How big are your LP tanks?
2. Where are yours mounted?
I want to use LP for a freezer and heat. Not interested in engine lp.

Former owner of a 1969 F600 Skoolie.

1998 Ford B700 Thomas body 65 passenger. 5.9 Cummins 12 valve with MT643 Transmission 123,000 miles.
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Old 12-13-2011, 04:13 PM   #2
Bus Crazy
Join Date: Mar 2011
Location: Oregon/Philippines
Posts: 1,660
Re: LP Tank questions

30 gallon in compartment with 4 gallon spare. Used for furnace, frig, etc as necessary. lasts a long time.
Jesus Christ... Conversion in progress.
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Old 12-13-2011, 08:33 PM   #3
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Join Date: Jun 2004
Location: Roswell, NM
Posts: 3,588
Year: 1986
Coachwork: BlueBird
Chassis: 40 ft All American FE
Engine: 8.2LTA Fuel Pincher DD V8
Rated Cap: 89
Re: LP Tank questions

Two 20# BBQ tanks. One is currently full(ish) and sitting on the ground next to the bus. The other is empty and needs to be filled. they will be mounted under the bus with an auto changeover valve. The front LP tanks will only run my 30" gas range and the water heater.

Also will put two 20# BBQ tanks at the rear of the bus next to the water heater that we will use to heat the fluid for the hydronic heat exchanger. It will also allow us to swap out the tanks, if needed either front to back or vice versa. The heater tanks will also have an auto changeover as well. Because LP (especially for the heater) always runs out in the middle of the night, necessitating that "someone" get up, get dressed and go out in the rain/sleet/snow to swap the tanks.

Our neighbours at the last park we stayed at, swapped 30# tanks every three days on an RV furnace. It ran all the time. Some RV furnaces suck LP like there's no tomorrow. We had an older (1980's) Suburban in the Class C and it was pretty good on LP. We normally used electric heaters and ran the furnace as a backup (if the inside temps dropped to 60, the furnace would kick on... the electric heater woulds keep the furnace from cycling on too soon when it was single digits outside). With the bus, we will have an electric heater in the front of the bus (living area) and add a "hott rod" to the tank that heats the fluid for the heat exchanger. That way, we can use the AC included in the site rental OR use LP if the power is out or while wallydocking OR use LP if the LP is cheaper than the metered electric.

Why 20# BBQ tanks... Because it hard to do a tank swap with a 30lb tank! We can swap out a BBQ almost anywhere (and have). While refilling a tank is cheaper (not always), LP fill stations are not open all the time... like weekends and holidays, you know, the times when you run out of LP and have no backup because you forgot the other tank ran out... and a winter storm is heading in. Not that we have ever had that happen.
This post is my opinion. It is not intended to influence anyone's judgment nor do I advocate anyone do what I propose.
Fulltime since 2006
The goal of life is living in agreement with nature. Zeno (335BC-264BC)
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Old 12-16-2011, 11:26 AM   #4
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Join Date: Aug 2011
Location: Central Tennessee
Posts: 1,093
Year: 1973
Coachwork: Blue Bird
Chassis: All American
Engine: CAT 1160 V-8 Diesel
Rated Cap: 72
Re: LP Tank questions

I have a 40 gallon propane tank. That would make it a 160 pounder. It is mounted to the bottom of the bus on the passenger side behind the rear wheels. I like to leave it filled up as a reserve if I run out of propane in my twenty pounders.

I recently scored on seven of them for one hundred dollars. I am parked for the winter. I disconnected the mounted tank and use the little tanks ( with their own regulators ) to run my three (3000 BTU) propane catalytic heaters. I can run all three of the heaters on high, constantly, for a few days with a 20lb tank. Although, I usually get more time than that because the heaters are never running on high 24 hours a day.

Every day I lift up and shake the little tanks to see how much propane there is still in there. I determine if I will make it through the night. If I feel that I will not, I change to a filled tank, and then use the almost empty one for the daytime. I really do not want to get up at night in the freezing cold to change a tank.

My big tank, which is mounted under the bus would last a long time, but it is my reserve, and I would have to drive the bus somewhere to get it filled. The little tanks are on the ground near the big tank, I have a flexible rubber hose that is three feet long with a regulator attached.

Here are two pics of my big tank.

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