RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Monaco Owner's Forum
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 09-28-2019, 07:54 PM   #1
Senior Member
 
Monaco Owners Club
Join Date: Nov 2017
Posts: 917
BTU / Propane Usage Question

Hi Folks!

Every time I cook something on the stove I find the motorhome gets pretty warm. The other day I saw that the main burner puts out 9,000 BTU's. This heats the motorhome up pretty fast.

Now that it's winter, I've been using the furnace which is rated at 26,000 BTU's. As you can imagine, it uses quite a bit of propane.

Question, since the stove puts out 1/3 of the BTU's and heats up the unit fast, isn't it actually using 1/3 of the propane that the furnace uses ?
__________________
Best!
Bob Jones - 2000 Monaco Diplomat
ISC315 with Linnig Electromechanical Fan
BobJones 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 09-28-2019, 08:12 PM   #2
Senior Member
 
Join Date: Jul 2014
Posts: 24,795
The big difference is that the stove burner Is consuming oxygen and giving off harmful by-products and moisture to the inside of your RV.

The furnace, although less effecent, is heating the inside air thru a heat exchanger.

The furnace is pulling in outside air for the burner and sending the moisture and harmful ehxaust gases back outside.

At the same time, that heat is being transfered to inside air, thru the heat exchanger, that comes out the air ducts.

If things were equal, the larger BTU burner would run a shorter time, for the same amount of heat.
twinboat is offline   Reply With Quote
Old 09-29-2019, 08:40 AM   #3
Senior Member
 
153stars's Avatar
 
Join Date: Mar 2019
Location: Braidwood Il.
Posts: 2,022
I have used my stove to quickly take edge off in the morning. No more 30 min.. You probably end up going in and out in that morning anyway.
__________________
95 Monaco Crown Royale
M11 400hp, 4060 trans.
Aquahot, Generac Guardian7.5k
153stars is online now   Reply With Quote
Old 09-29-2019, 02:52 PM   #4
Senior Member


 
Monaco Owners Club
Join Date: Mar 2018
Location: Blairsville, GA & WPB, FL
Posts: 3,592
Send a message via ICQ to Ivylog
A RV furnace is only 70-75% efficient while your burner is 100% if you survive. Don’t run it to long not that a RV is all that air tight.
__________________
This post is my opinion, worth what you paid for it.
Our ”New” ride...08 HR Navigator 45’. A nice upgrade after 14 years with a 04 Dynasty 42’.
Ivylog is offline   Reply With Quote
Old 09-29-2019, 02:55 PM   #5
Senior Member
 
Monaco Owners Club
Join Date: Nov 2017
Posts: 917
Thanks everyone! Especially Twinboat, that was one of the best answers I've ever seen

I won't use the stove as my primary heat source But I was curious about the details behind it.
__________________
Best!
Bob Jones - 2000 Monaco Diplomat
ISC315 with Linnig Electromechanical Fan
BobJones is offline   Reply With Quote
Old 09-29-2019, 03:08 PM   #6
Senior Member
 
grindstone01's Avatar
 
Join Date: Oct 2017
Location: FULL TIMERS
Posts: 4,957
Your RV furnace is very inefficient. Not only is the furnace heating the storage compartments and duct work but you also lose heat out the exhaust vent to the outside.
Think of the stove output of 9000 BTU's going directly into the RV, whereas the furnace 26000 BTU's only (estimate) 9000 BTU's get into the RV.
Warming a RV with the stove is not a bad thing for a short time, however I would not advise leaving the stove burners run overnight. On cold days, we try to use our oven/stove and even the crock pot for cooking and get double usage from the heat. On hot days, we try to cook outside to reduce the AC expense. We use a Mr Buddy propane heater as a sole heat source in our RV and can run for 5-7 days on a 20# bottle.
Attached Thumbnails
Click image for larger version

Name:	Mr Heater.JPG
Views:	20
Size:	29.4 KB
ID:	261832  
__________________
2018 Chevy DRW
2008 Carriage Cameo, F34CK3
Full Time since 2012
grindstone01 is online now   Reply With Quote
Old 09-30-2019, 07:50 AM   #7
Senior Member
 
Timaz's Avatar
 
Monaco Owners Club
Join Date: Aug 2017
Location: On the road
Posts: 868
HEAT HEAT HEAT!....Winter time NO...it's still 95 in Phoenix this week. LOL
__________________
Finally Retired-60% Time in Motorhome
2000 Dynasty Regent, 8.3, Banks Turbo, McCabe Racing 5" Diameter Exhaust, 475 HP 1425 Torque 11+MPG towing 05 Pilot 700W solar & E-Bikes
Timaz is offline   Reply With Quote
Old 01-13-2020, 06:25 PM   #8
Senior Member
 
Monaco Owners Club
Join Date: Nov 2017
Posts: 917
Quote:
Originally Posted by twinboat View Post
The big difference is that the stove burner Is consuming oxygen and giving off harmful by-products and moisture to the inside of your RV.

The furnace, although less effecent, is heating the inside air thru a heat exchanger.

The furnace is pulling in outside air for the burner and sending the moisture and harmful ehxaust gases back outside.

At the same time, that heat is being transfered to inside air, thru the heat exchanger, that comes out the air ducts.

If things were equal, the larger BTU burner would run a shorter time, for the same amount of heat.
I just wanted to update this thread with more real-time experience. I used the burner on the stove for heat for some time but found that I was not able to think straight after a while and often slept on the couch !

After some consideration I came to the same conclusion, the stove burner is fine for short periods. That's it. What I did find though was a TON of moisture was created when heating with the stover burner. As a result, my dehumidifier had to run pretty well all day (480 watts). After realizing my brain didn't work as well as it used to I filled the propane tanks and went back to the furnace.

Here's the thing. Propane use is up, way up. Mind you, it's -3 outside and supposed to hit -10. However, humidity in the unit is down, way, way, down. This morning I took my regular half hour shower (steaming hot) and within a few hours the moisture in the shower was entirely gone !!!

So the furnace really does remove a TON of moisture. The dehumidifier will not even come on if I'm using the furnace. I'm back to using an oil filled-radiator as a supplement to the furnace and now I can think straight again.

Anyway, this is probably self-evident after what twinboat said but I just wanted to confirm it with my experience. The stove burner should only be used for short-term heat such as helping the furnace get the temperature up to speed if you've been out for the day or some such.
__________________
Best!
Bob Jones - 2000 Monaco Diplomat
ISC315 with Linnig Electromechanical Fan
BobJones is offline   Reply With Quote
Old 01-13-2020, 08:27 PM   #9
Senior Member
 
153stars's Avatar
 
Join Date: Mar 2019
Location: Braidwood Il.
Posts: 2,022
In negative digit temps the outside air will be very dry the furnace is not removing moisture your just not adding humidity. The relative humidity is much lower with same exact air at higher temps . You will more comfortable in 70% humidity during cold weather than 55% . The human body puts out a lot of water in resperation so it needs to be removed. Some humidity is not a bad thing .you just don't want the coldest parts of RV to be sweating or getting damp. Moving some air around in rooms not occupied with a small fan once in a while will help to even out and remove dampness that may be forming on walls, windows and bedding ect. putting back in the air if it needs to be removed by the dehumidifier.
If you do take edge off with the stove keep the burners less than full for more complete combustion. Blue flame heaters have a quite soft blue flame and draw a lot of extra air around the flame for complete combustion.

We have gas fired inert gas generator/boilers at work and have to walk fine line for zero O2 ,complete combustion and least possible CO . I am actually building a sampling unit for O2,CO and combustibles right now. From the generators 99.7% nitrogen+CO2 gets cooled thus dried. Its like a faucet 1/3 open coming off intercooler. Even though we have seen the amount of water for decades , when cooler is working its best ,we still get fooled into thinking there's an intercooler leak.Its hard to believe the amount of water they actually produce.

Once as teen, I was CO poisoned driving a used car back to dealer I was working at. Just a few breaths near a forklift exhaust makes me woozy until this day.
__________________
95 Monaco Crown Royale
M11 400hp, 4060 trans.
Aquahot, Generac Guardian7.5k
153stars is online now   Reply With Quote
Reply

Tags
propane



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
Propane usage & blower motor question. Unicorn Driver RV Systems & Appliances 7 01-12-2018 12:15 PM
Two 15,000 BTU ACs vs two 13,500 BTU ACs... go6car RV Systems & Appliances 5 01-24-2015 10:36 AM
Anyone replace a 13,500 btu a/c with 15,000? Ed S Monaco Owner's Forum 24 02-10-2010 12:18 AM
Low profile 15 BTU Roof/AC Gen upgrade sandra National RV Owner's Forum 3 02-12-2008 07:24 PM
13.5k btu or 15k btu air condtioning PClayton Travel Trailer Discussion 2 07-19-2005 09:17 AM


All times are GMT -6. The time now is 09:17 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.