Skip to main content ↑ ↓
Topic: FREEZE WARNING! ( or, how cold is too cold?) (Read 2390 times) previous topic - next topic

FREEZE WARNING! ( or, how cold is too cold?)

As many of you in the lower 48 are seeing in the weather forecasts, next week is going to bring a big cold front south.  I am parked and plugged in at an RV park in Austin, Texas.  Our forecast is saying three nights of lows of 27 degrees with highs back up to the low 40s. 

I don't THINK I need to go through a complete winterization process with pink anti freeze and the works (with the furnace, heat strips and water heater turned on while I am plugged in the 50 amps), but I'd like to hear any real life stories from you experienced Foretravel owners.  How low can temps get and you would start to get worried?

1999 U270 Forty foot, no slides. (New to me this year)
No aqua hot, just a regular water heater.

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #1 –
Mid 20s here in New Mexico, but we have an Aqua Hot.  No shore power.

On our previous coaches, we put a small heater in the water bay and were fine in the mid to low 20s.

A space heater might be too aggressive, maybe a heat panel, electric blanket, etc.

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #2 –
I have spent longer in colder weather in a Grand Designs 5th wheel. You'll be fine. Even without an AH, you're in a far superior rig than that POS.

If anything, I would be more concerned about rodent proofing your rig... all those little critters are going to be looking for a warm place to hunker down.

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #3 –
Going on 9 years owning our coach - never went through the "winterization" pink stuff routine.  In the winter months our coach is parked right outside our house in the driveway, no cover or barn, but always plugged into 50A.  My standard winter setup is as follows:

1.  Two small 110V thermostatically controlled electric heaters, one at each end of the wet bay.  I set them to come on at about 60 degrees so they get ahead of the curve when the temps start to drop.

2.  Four small 110V thermostatically controlled electric heaters inside the coach.  One in the bathroom, one under the table in the kitchen, one on the floor in front of the driver seat (keeps the Allison ECU warm), and one on the dash blowing toward the windshield (reduces condensation on glass).  They are all set to maintain about 60 degrees.

3.  We have the two factory propane heaters in our coach - one in the bedroom and one in the living room.  I leave them turned on all winter with the thermostats turned down as low as possible (about 50 degrees).  These are my backup heaters in case the interior electric heaters are not keeping up, and also in case grid power fails.  (The electric heaters in the wet bay are not powered by the inverter).

4.  I leave the water heater (110V electric element) turned on all the time.  It adds a little heat to the wet bay.  I also keep the fresh water tank about half full.  The water gets warm during mild weather, and during cold spells it acts like a big passive heat radiator to help maintain the warmth in the wet bay.

This setup has worked just fine for Texas winters, even during the Big Freeze of 2021 when grid power to our house was down for several days.  We moved into the coach, ran the generator as necessary, and were perfectly comfortable in the near-zero temps.  I have a thermometer inside the coach with remote sensors in both ends of the wet bay and in the big central storage bay.  With outside temps in the low teens our wet bay stays around 60 degrees.

This works for us!  Others will have different routines according to how they use their coaches.

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #4 –
I read these posts and am jealous of you good folks in the south.
In Alberta Canada this Tuesday  forecast  -32f low and -18f high!!!

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #5 –
Not a problem. If your propane tank is full, you have nothing to worry about. Your Foretravel will handle nighttime temps in the mid 20s with ease.

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #6 –
We and many others use Lasko MyHeat Personal 200-watt Space Heaters to keep bay areas from reaching freezing temps in some out of the way spaces.

Also, good to have these heaters for backup in AquaHot coaches. Propane furnaces can not be counted on to heat all places where water lines are located in bay areas. Also furnace only heats bays when it is running to heat inside of coach. Without remote wireless thermometers, life is running blind and have no idea how cold bay areas are.

200-watt heaters are desirable for minimal 120v amp usage, small size, and they do not get hot enough to burn any nearby material.

We used 4 Lasko's in our bay areas, each with a large pieced of Reflectix foil insulation and wireless thermometer just inside door. Never a problem over 20-years traveling the US & Canada, where never winterized coach.

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #7 –
Spent a few below zero temps in Yellowstone and survived.  No issues!  Did disconnect the water hose from outside faucet and coach.  Aqua Hot kept it nice and comfy at any temps we wanted in coach.  Happy wife, happy life!

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #8 –
-7 F is the coldest that I've been in my coach and I'm sure it would handle it a lot colder.
I was dry camping.

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #9 –
Coldest I've been was 10 degrees in ElPaso . Propane furnace and heater in the bay no problem. I'm sure aqua hot is fine but I've never had any issue with propane as it blows in the bay as well.

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #10 –
If you're concerned about the wet days get a remote Bluetooth thermometer. Put one on each side and you'll have a good idea from inside the coach what the temps are like down there. It just has to be above freezing it doesn't have to be very warm. Make it too warm and it will make for a warm place for the local rodent population. I think the coldest I've been and now has probably been between 5 and 8 degrees Fahrenheit. The aquahot handles it fantastically but of course always wondering what would happen if the aquahot gives out. I have no propane in the coach anymore so it would have to go with electrically operated things in which case I would just put a 60 or 70 watt incandescent light bulb in each side of the Wet bay plugged in in a couple small electric heaters inside the coach.
My air conditioners don't have heat strips in them but are heat pumps but after things get below 43 degrees Fahrenheit it doesn't work too well. So you can't rely on those. But in the five years or so of ownership I've never had to winterize since I'm living in it. If I was not going to be living in it I would winterize it. Why take the chance? Repairing broken PEX lines that are in places that are hard to access will be no fun. Replacing a manoblock, or even worse yet having to replace a water tank better to winterize if you're not absolutely sure. At least that's my recommendation.
Best winterization method I found is going south.

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #11 –
I'm looking at 14 this coming morning here in Albuquerque. Lasco 200 watt in water heater bay and wet bay on well pump thermostat. Propane furnace running. Lithium batteries have a holding tank heating pad. Remote temperature sensors in all critical areas. This will be one of my coldest nights. More to come while visiting our son and grandchildren.

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #12 –
You need to use the furnace and make sure the thermostat is turned up in the manifold compartment if you have one. My 270 was a long time ago now. The 320s handle with the Aquahot really well. If it gets really cold I sometimes run a small heater in the water bay.

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #13 –
Quote from: TurboXK –
I don't THINK I need to go through a complete winterization process with pink anti freeze and the works (with the furnace, heat strips and water heater turned on while I am plugged in the 50 amps), but I'd like to hear any real life stories from you experienced Foretravel owners.  How low can temps get beforee you would start to get worried?

1999 U270 Forty foot, no slides. (New to me this year)
No aqua hot, just a regular water heater.

We live year round in a U225.  27F for a few hours is nothing, just leave both furnaces running.  In ours, the bedroom furnace heats the wet bay.  If it helps you sleep better a small electric heater in the wet bay gives you belt and suspenders confidence.

There is a dividing line between the haves and the have nots.  The U320 have a full home style diesel fuel'd hydronic heating system, that use forced hot water through toe kick heaters and individual heating zones, and as such the U320s have a thermostat controlled heater in the wet bay.  The rest of us use propane fuel'd forced hot air furnaces and a bathroom door, with a duct to feed heat to the wet bay, so the warmer you are, the warmer are the tanks.

Thoroughly tongue i cheek this morning,
Art

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #14 –
If staying in a RV park with 50A hookup (as stated by the TurboXK in first post) it makes more sense (IMO) to utilize electric space heaters rather than the factory installed propane heaters.  Why burn expensive propane when you are already paying for the electricity as part of your campground fee?  Plus, electric heaters are MUCH less noisy and provide more even coverage of the whole coach interior.  If your bed partner likes the sleeping area to be cool (or cold), the last thing you need is the bedroom propane heater cycling (on and off, on and off, on and off.......) all night long just to protect the wet bay from freezing.

At least that's how I see it...

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #15 –
Warm air will stratify up near the ceiling and cold air down by the floor.
We have found that we are so much more comfortable if we have a small 4" or 6" 12V fan hung up near the ceiling and blowing towards the back of the coach. We don't run the bedroom furnace and even if we just have a very small electric heater up front the DW will comment that the bedroom is "kinda" warm. So I have to either close a door partway or redirect the fan.
Either way, if you are not using the coach heating system, open all your lower cabinets and compartments where something could freeze. Especially under your sinks and shower.
The lower cabinets (usually) have your water lines in the back of the cabinets, right against outside walls.

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #16 –
Quote from: Chuck & Jeannie –
If staying in a RV park with 50A hookup (as stated by the TurboXK in first post) it makes more sense (IMO) to utilize electric space heaters rather than the factory installed propane heaters.

At least that's how I see it...

In our case we've made our home base in a $100/month trailer park and we pay for the electricity.  That being said, here in south eastern Georgia the outside air temperature is forecast to dip into the mid 20s briefly next week.  I'm looking forward to watching the locals panic over the big freeze, remembering New England homes where certain doors need be open, others closed, and a fan blowing air under the kitchen sink, through open doors because someone had the bright idea to place the plumbing on the north wall of the house.

I'll throw a bucket over the outside tap for the night.

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #17 –
I forgot something.
If it is going to freeze and stay cold for more than overnight I recommend disconnecting your water hose--if you leave it hooked up to the coach AND a faucet supply. Also let the supply faucet drip--slowly--while it is cold out.
In Texas, the water lines are buried real shallow so freezing is likely to happen with a prolonged cold spell below 32*

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #18 –
Living in a coach takes planning. I have been living and camping in RVs since the 60s and the
coldest was -30F in a camper and it was comfortable. In the 70s I bought a small class C and
some of the things I did to winterize it, Vanguard saw what I had done when I went in for warrantee
work and put them in the next years winter package. Find the weak places for insulation. One of
foretravel weakness is the wet bay hatches. The right side is really easy and because of the  hinge
mechanism is harder for the left side. Having the wet bay heat coming from the bedroom would
not work for me as I keep the bedroom cold. Another thing is driving, a big wind chill factor. When
I had the Monaco I had three heaters running off the engine. One in the wet bay and 2 in the coach.

Re: FREEZE WARNING! ( or, how cold is too cold?)

Reply #19 –
Don't go thinking we don't get cold snaps down here in Dixie, last year we had 24 in of snow in 36 hrs and after the sky cleared got down to -5 . True it was 65 the next week but during the few days your toy's better be inside or something done.