Water tank Heaters

glenrik

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Has anyone tried stick on heaters for underslung water tanks. We have just changed our motorhome after 19 years and assumed the new van would have the same as the old one. WRONG!
Any help would be grateful.
 
glenrik said:
Has anyone tried stick on heaters for underslung water tanks. We have just changed our motorhome after 19 years and assumed the new van would have the same as the old one. WRONG!
Any help would be grateful.
Click to expand...
As Benny Hill once said you should never assume because it makes a ass out of U & a ass out of ME.
Not sure about stick on heaters but internal elements i have seen at low wattage, have a look on ebay.
 
The 'heaters' that Autosleepers put on their tanks are stick- on things. They cover about 1/8 of the base of the tank, leaving 98% of the outside of the tank open to the air. Also the 'air' side of the 'heater' is not insulated, just as the tank is not insulated. They are yet another of the absurd showroom gimmicks that are deployed nowadays to fool the gullible.
If it makes you happy, just stick a 6" x 4" self adhesive plastic heater element on the underside of the tank, wire it to a switch and there, you have what you would have got if an AutoSleeper had come equipped with it.
Actually here is a 12" x 17" one for £26. You wouldn't get one that big if it was added in the factory. It's 60Watts, so you will need some significant power source to run it. But the grass underneath would grow well . . . .


Personally if the water was going to freeze I would pack up and go somewhere warmer . . . . .
 
Our freshwater tank is inboard, and described as 'semi-winterised'. The Frost Stat will empty the fresh tank when the air temperature falls below 10 degrees, so we set the blown air heating on the Truma to fire up at 12 or 13 degrees; warm enough to deal with the tank contents dumping threat, but nowhere warm enough to stop us sleeping because of the heat [3am bathroom visit still regsiters on the 'pure Baltic' scale ... :ROFLMAO:

Steve
 
gasgas said:
It's 60Watts, so you will need some significant power source to run it. But the grass underneath would grow well . . . .
Click to expand...


The thermostat switches on at 10 C and stays on until it reaches 20 C, so in practical terms that means that once switched on it will remain on.

60 w = 5 amp at 12v so a nights running would flatten a 120 ah battery.
 
OK that was just the first water tank heater I came across. I guess if I were serious I would look further for a tiny A/S type one. . . .
 
If you are likely to freeze the tank better to carry water inside and leave tank empty. Leave tap open on waste tank
 
Problem with heater water tanks is bugs start to grow in them, best to use a few 5 ltr camping containers kept inside and empty the outside tanks until summer comes around.
 
glenrik said:
Has anyone tried stick on heaters for underslung water tanks. We have just changed our motorhome after 19 years and assumed the new van would have the same as the old one. WRONG!
Any help would be grateful.
Click to expand...
Never Ass U Me
 
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