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Old 01-21-2019, 09:23 AM   #1
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furnace on electricity only?

Hello, we are brand new owners of the FR3 and we thought that when we are 'plugged in' to the 50 amp and selected "heat; that it would run on electricity only and not use the propane. We are just about out of propane so our assumptions was wrong...Brrr. If we select the Furnace button, will that be electricity? What is the difference between just turning on the heat button and turning on the Furnace? Thanks for educating us.
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Old 01-21-2019, 09:29 AM   #2
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Originally Posted by Ginny9255 View Post
Hello, we are brand new owners of the FR3 and we thought that when we are 'plugged in' to the 50 amp and selected "heat; that it would run on electricity only and not use the propane. We are just about out of propane so our assumptions was wrong...Brrr. If we select the Furnace button, will that be electricity? What is the difference between just turning on the heat button and turning on the Furnace? Thanks for educating us.
Your furnace is gas. Your rooftop A/C may be a heat pump is electric.
Look at your manual for t-stat set up instructions. I don't have a heat pump so I cannot walk you thru it. I'm sure someone will jump in here soon.
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Old 01-21-2019, 09:32 AM   #3
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furnace on electricity only?

Every regular RV furnace Iíve ever seen produces heat by burning propane. Theyíre not like refrigerators which use either electricity or propane nor like water heaters which can use both. They use 12v DC for control boards and blowers (fans) and propane for heat.
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Old 01-21-2019, 09:46 AM   #4
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Unless your roof top unit is a heat pump then your only built in source of heat is the propane furnace. If you have an electric fireplace, you can get some heat from that, but not enough to heat the RV on a real cold day. If you have a heat pump, it will not operate below a set temp so the propane furnace may still be your only source of heat. If you have 50A service, you can get a ceramic heater or oil filled radiator that will help reduce the use of propane. If you are careful you can even run two small ceramic heaters as long as you have 50A service and don't put them on the same breaker.
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Old 01-21-2019, 09:49 AM   #5
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Many R/Vs have two (sometimes more with a fireplace) sources of heat.
The furnace, which is propane (and 12v for the fan) and sometimes the A/C unit has a heat pump or heat strip option.

The heat pump/heat strip option is only good down to about 40ļ.
If you are using the heat pump/heat strip option and it can't keep up with satisfying the temperature, the furnace kicks in.

You should be able to select just the furnace as well.

Make sure you don't run out of propane or you will need to do a purge of the LP lines to get the appliances working again. Often times that can be as simple as lighting all the stove burners after filling the tank(s).
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Old 01-21-2019, 09:51 AM   #6
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You can always go and buy a electric ceramic heater and plug in to 120v
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Old 01-21-2019, 10:19 AM   #7
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Iíve been looking at the ďCheap HeatĒ system for years. Save me the hassle of having electric heaters sitting around (and needing stored).

But, Iím not sure I can stomach how long itíll take to recoup the $1,500 cost.
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Old 01-21-2019, 10:42 AM   #8
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For your propane, instead of moving your unit to refill the tank, you can get an Extend A Stay Kit and use the 20 lb bottles. I do it all the time. Have 2 bottles and as soon as 1 is empty, take it in the car and get refilled. I only use my on board tank for running the reefer on the road and maybe some hot water on the road. That tank generally gets filled maybe 3 times a year.
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Old 01-21-2019, 11:51 AM   #9
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Lots of good advice above. Also, if you're trying to conserve propane, your water heater has a electric only mode.
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Old 01-21-2019, 12:15 PM   #10
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Quote:
Originally Posted by ependydad View Post
I’ve been looking at the “Cheap Heat” system for years. Save me the hassle of having electric heaters sitting around (and needing stored).

But, I’m not sure I can stomach how long it’ll take to recoup the $1,500 cost.
I am looking at the system as well. I am able to install the system myself so I should be able to get it installed for around $700-800 but I figure it will still take several years to pay for its self. I do like the idea of the furnace running so my storage compartments are heated as well.
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