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Old 07-20-2016, 01:20 PM   #1
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Heat without running generator?

Can you operate the heat on a forester mbs without running the generator? I see it has a heat pump which would lead me to believe you need to run the gen to operate the heat. Just didn't know for sure. Also heard about something called the "little buddy" heater.

What do others do to boondock in colder weather?
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Old 07-20-2016, 01:41 PM   #2
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The main furnace in many RV's is propane with a 12 VDC fan and control board. The fan sucks quite a bit of juice if you only have one battery. So if you use this type of heat ... it runs off the house battery.
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Old 07-20-2016, 02:25 PM   #3
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Can you operate the heat on a forester mbs without running the generator? I see it has a heat pump which would lead me to believe you need to run the gen to operate the heat. Just didn't know for sure. Also heard about something called the "little buddy" heater.

What do others do to boondock in colder weather?
Your furnace uses propane and 12v battery power, not 120v AC power.

Suggest you Google " The 12 Volt Side of Life " to better understand how RV electric systems work.

Your generator is for recharging the batteries and running 120v AC only items, like the a/c, outlets and microwave.
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Old 07-20-2016, 02:50 PM   #4
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Thank you!
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Old 07-20-2016, 05:19 PM   #5
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Heat pump - option on the air con unit - requires 120 volts. Furnace - as noted above - runs on 12 volts plus propane.
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Old 07-21-2016, 07:15 AM   #6
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Heat pump - option on the air con unit - requires 120 volts. Furnace - as noted above - runs on 12 volts plus propane.
I ordered the optional 15k BTU a/c with heat pump. Do I still have the option to run my furnace on 12 volts?
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Old 07-21-2016, 07:20 AM   #7
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I use a ventless heater that I have plumbed into the coach LP system.
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Old 07-21-2016, 07:22 AM   #8
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I ordered the optional 15k BTU a/c with heat pump. Do I still have the option to run my furnace on 12 volts?
YES--they are separate and independent units that operate as described above--120V for A/C (heat pump) and 12V for furnace. As stated above, the furnace fan eats up your battery capacity so you'll need to recharge periodically. I'd be surprised if your batteries would run your furnace all night long if it's really cold.
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Old 07-21-2016, 07:28 AM   #9
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I ordered the optional 15k BTU a/c with heat pump. Do I still have the option to run my furnace on 12 volts?
Your heat pump option applies only to the AC unit, your main furnace runs off of 12V and propane and you can use it at any time.

AC heat pump requires 110V power either shore power or generator

Main furnace requires only 12V and propane.

hope that removes the confusion
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Old 07-21-2016, 07:40 AM   #10
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Thanks to all for your info.
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