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Old 06-18-2009, 09:21 PM   #1
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keeping tanks warm

I'd like an opinion as to which way to go with my airstream, get one with 12v heat pads or one with hot air from the furnace. Both will suck a battery dry but if you keep the heat inside on will this eliminate turning on the 12v pads?
I thought the pads were good while enroute but once you arrive can you survive with the furnace. I'm not sure if the models with the 12v pads are designed differently?
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Old 06-18-2009, 09:42 PM   #2
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I'm going with heat pads, if it's cold enough to need the heat I'll run a generator for the power.
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Old 06-18-2009, 09:45 PM   #3
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I'd like an opinion as to which way to go with my airstream, get one with 12v heat pads or one with hot air from the furnace. Both will suck a battery dry but if you keep the heat inside on will this eliminate turning on the 12v pads?
I thought the pads were good while enroute but once you arrive can you survive with the furnace. I'm not sure if the models with the 12v pads are designed differently?
No need for heat pads.

The furnace will provide adequate heat to keep the tanks from freezing.

When your towing, in freezing weather, keep the furnace set to about 55 degrees. The battery will not run down, but make sure you have plenty of LPG in the tanks.

Then, when you get in the trailer, you won't be greeted with a freezing atmosphere.

What year and length Airstream do you have?

Andy
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Old 06-18-2009, 09:53 PM   #4
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If you use your heat, then why not let it warm your tanks. But where are you camping when it is below freezing all the time.

To freeze a holding tank under a trailer would take time and sustained cold temps...
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Old 06-19-2009, 06:05 AM   #5
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We have a tank heater, use it whenever we are expecting freezing temps (which we try to avoid). We don't boondock in this kind of weather. As we are small, we use a tiny electric space heater for heat---if you are plugged into and paying for electricity, why use your propane? We have seen some really cool electric space heaters which look remarkably like wood stoves, put out an amazing amount of heat and add a lot of atmosphere to the interior in cold weather.
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Old 06-19-2009, 06:55 AM   #6
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For those of us that prefer not to tow with the furnace running, is a system like www.ultraheat.com doable on the AS? It appears to have the ability to heat the drain lines as well as the tanks.

Could this be applied to all the internal water lines?

Has anyone done this and does anyone know of an installer for this type of system?

Thanks in advance, 'shaker
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Old 06-19-2009, 11:52 AM   #7
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For those of us that prefer not to tow with the furnace running, is a system like www.ultraheat.com doable on the AS? It appears to have the ability to heat the drain lines as well as the tanks.

Could this be applied to all the internal water lines?

Has anyone done this and does anyone know of an installer for this type of system?

Thanks in advance, 'shaker
It appears that system is ok for the pipes, but there is nothing in the drain lines, so what could freeze?

The problem is keeping the tank or tanks from freezing.

That requires circulating heat.

Andy
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Old 06-19-2009, 02:36 PM   #8
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Quote:
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If you use your heat, then why not let it warm your tanks. But where are you camping when it is below freezing all the time.

To freeze a holding tank under a trailer would take time and sustained cold temps...
I have had a case of pop freeze In less then 30hr stored In a compartment (under dinette seat) with a outside access panel and sealed off from getting any heat. Inside the camper 75, outside -20 windchill. There's nothing like camping In the snow!!!
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Old 06-19-2009, 04:49 PM   #9
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This subject seems a bit odd when it is 100 degrees out
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Old 06-19-2009, 05:06 PM   #10
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This subject seems a bit odd when it is 100 degrees out
Don`t over due it ,it was only supposed to get to 98 in Austin today. I`m of the feeling if I have to run the heat,I need a change of latitude.Dave
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Old 06-19-2009, 07:18 PM   #11
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I put a little diverter in my line at the tee. It blew enough hot air to keep the tank from freezing at 15 degrees F. Skip the heat pads. If the have a problem they tend to get a hot spot and can melt a hole in you tank. Your TV may not be able to keep up with the energy used by heating pads.
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Old 06-20-2009, 02:51 AM   #12
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Old 06-20-2009, 02:53 AM   #13
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It appears that system is ok for the pipes, but there is nothing in the drain lines, so what could freeze?

The problem is keeping the tank or tanks from freezing.

That requires circulating heat.

Andy

Andy,

Good point.

Just curious as to why do alot of RV sites and publications give instructions on how to build boxes with insulation and light bulbs, etc. to prevent the drain lines from freezing?

We always close our lines after emptying.

We disconnect the Sewer Solution and put it away after draining any remaining water in the hoses when in low temps. Maybe some don't.

'shaker
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Old 06-21-2009, 10:16 AM   #14
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air or 12 tank heaters

In deciding on which airstream to purchase, I notice some have 12v tank heaters other have heater air to the tanks. I'm asking those that have either of these systems which they prefer, the pro and con of each type. This will help me decide which model to get. Thanks
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