|
|
11-09-2013, 01:51 PM
|
#1
|
Member
Join Date: May 2013
Location: Sarasota, FL
Posts: 82
|
How long does propane last?
If I am just running the fridge and furnace on propane, how long will my 39 gallon LPG last? 1 week, 2 weeks, or more? We are doing very little cooking with the propane. I know this question is vague and is dependent on many factors, but a general answer will do.
Thanks.
__________________
Barb
2004 40' HR Endeavor
Bailey & Laci (the schnauzers)
|
|
|
|
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!
|
11-09-2013, 01:55 PM
|
#2
|
Senior Member
Join Date: Feb 2012
Posts: 140
|
Short answer 3 to 4 days
|
|
|
11-09-2013, 01:58 PM
|
#3
|
Senior Member
Newmar Owners Club
Join Date: Oct 2009
Posts: 10,310
|
I see you are from Buffalo, so if you are using there in the winter , 3-6 days maybe , down south a lot longer. With what you posted and are asking it is really hard to answer. 1 gallon of propane produces app. 92,000 BTU'S of heat , so if you add up the btu's of your furnace and estimate how much it will run in a hour (depends on outdoor temp.) you can figure it close. I hope this helps with your question.
__________________
2012 Essex 4544 2011 Jeep JK, M&G Braking, 2014 MTI 27' Hog Hauler, Wireless brake control, 2006 Ultra & 1989 Springer, 2003 Harley-Davidson
FLHR Road King Anniversary
|
|
|
11-09-2013, 02:06 PM
|
#4
|
Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,925
|
Mileage may vary. I think 3-4 days is short. It should last quite a while unless you have the thermostat set on 80º. You might think about one of these:
Removable Accu-Level Propane Tank Gauge with Magnetic back : Amazon.com : Kitchen & Dining
This and a cup of hot water will tell you the level of LP in the tank.
__________________
Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
|
|
|
11-09-2013, 02:23 PM
|
#5
|
Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 30,971
|
3-6 Days??? on a 39 gallon tank??? Come on, my 5er would run longer than that on a 30 pound(7 gallons) cylinder for those two appliances. Palehorse gave you the correct formula to calculate how long your 39 gallon tank should last.
__________________
2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA. " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
|
|
|
11-09-2013, 02:28 PM
|
#6
|
Senior Member
Newmar Owners Club
Join Date: Oct 2009
Posts: 10,310
|
Maybe re-read my post again Ray,39 gallons of propane, Buffalo winter, 15-30 deg. = not long. The furnace would be running about non-stop in those temps.
__________________
2012 Essex 4544 2011 Jeep JK, M&G Braking, 2014 MTI 27' Hog Hauler, Wireless brake control, 2006 Ultra & 1989 Springer, 2003 Harley-Davidson
FLHR Road King Anniversary
|
|
|
11-09-2013, 02:44 PM
|
#7
|
Senior Member
Join Date: Sep 2012
Posts: 4,232
|
I've had a not well insulated fifth wheel w/a 30K BTU furnace in 30*F or so. It didn't run anywhere near non stop.
So let's say this: 92k BTU per gallon. 39gal ASME tank. Even filled at 80%, that's 31.2gal. That's 2,870,400 BTU.
I'm gonna assume you have a 40K BTU furnace and a big refr that uses 3K BTU. That is roughly 66.75hrs of use. Roughly 2.78 days of running time.
|
|
|
11-09-2013, 03:03 PM
|
#8
|
Member
Join Date: May 2013
Location: Sarasota, FL
Posts: 82
|
Thank you everyone. I am leaving for Florida on Monday and am wondering if I need to "top it off" before I go. I am plugged into 30 amp shore power, so that is running the fridge until I hit the road on Monday southbound. I am keeping the furnace down around 55 just so the pipes don't freeze, so the furnace isn't running constantly.
__________________
Barb
2004 40' HR Endeavor
Bailey & Laci (the schnauzers)
|
|
|
11-09-2013, 03:11 PM
|
#9
|
Senior Member
Join Date: Sep 2012
Posts: 4,232
|
Never hurts to top it off.
|
|
|
11-09-2013, 03:26 PM
|
#10
|
Senior Member
Vintage RV Owners Club
Join Date: Apr 2012
Location: Lyons, GA
Posts: 769
|
Our 28 gallon tank will last us (full timers) at least 10 days during the worst of winter here in New Hampshire and we are not plugged into any ac power
|
|
|
11-09-2013, 03:54 PM
|
#11
|
Senior Member
Join Date: Jul 2012
Location: Fulltime, USA
Posts: 16,706
|
39 gallons of total capacity is about 30 gallons of actual LPG. It cuts off at 75-80%.
I actually go a very long time on my 20 gal.
Filled it last August, still at 3/4. Propane only used for stovetop, and occasional furnace. We use ceramic heaters, elect hot water.
|
|
|
11-10-2013, 03:40 AM
|
#12
|
Senior Member
Join Date: Nov 2005
Posts: 4,063
|
In Manchester NH my 28 gal tank would last about 10 days this time of year however at the North End of Lake Winnipesaukee I would drop that to about 6 days in an occupied 35 foot fiberglass coach with 6.8 foot ceilings and thermopane windows originally driven in Alaska. In an 40+ foot aluminum clad coach with higher ceilings and single pane windows you could use substantially more.
In Buffalo where you currently have sustained winds around 15 to 20 mph and can have night time temps well below freezing possibly down to the teens with 25+ mph winds factoring in the larger tank you might get a full week occupied and two or three weeks unoccupied.
Keep an eye on it and top off when you start your trip. Be mindfull that if the last time you filled the tank it was mid summer then you more than likely have a summer blend of propane which may not develope enough pressure to run the furnace if it gets below freezing and there is a windchill factor to deal with. Tonight you will have windchill temps in the mid to low 20's to deal with while Monday night going into Tuesday the windchill is forcast to drop to 15 degrees. So it is probably a good thing that you will be gone by then.
You can top off the propane at many truck stops along the way along with most major camp grounds.
__________________
Neil V
2001 Winnebago Adventurer WFG35U
|
|
|
11-10-2013, 05:51 AM
|
#13
|
Senior Member
Join Date: Feb 2012
Location: Lake County, IL
Posts: 1,584
|
Quote:
Originally Posted by palehorse89
I see you are from Buffalo, so if you are using there in the winter , 3-6 days maybe , down south a lot longer. With what you posted and are asking it is really hard to answer. 1 gallon of propane produces app. 92,000 BTU'S of heat , so if you add up the btu's of your furnace and estimate how much it will run in a hour (depends on outdoor temp.) you can figure it close. I hope this helps with your question.
|
Don't forget that the furnace looses part (perhaps 10% ?)of the heat out of the vent.
Joel
__________________
Retired electronics engineer. Avid paddler & birder.
2011 Silverado 2500HD, diesel, 4x4,crew cab, 8' bed
Palomino Puma 253FBS (27' 5er) & '94 19' Class B
|
|
|
11-10-2013, 06:19 AM
|
#14
|
Senior Member
Join Date: Feb 2013
Posts: 944
|
Get a couple little electric heater, and use camp ground $, saves a trip to get LP.
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|