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Hi all , could a fish tank water heater be used in a aqua roll , just to stop the water freezing when it gets really cold .

atb

Wizard

hi wiz M8.yes i suggested this late last year.there is no reason why it should not work.the problem is the feed.never had fish tanks.i did speak to a man who had.they are 240V transformed to 12V,the good ones also have a thermostat on the top which makes it better.you do not want warm water but you not want it to freeze.you could set it at just above freezing point.the one i was testing got smashed. you could have a two pin plug on the outside of the van.or a cigarette lighter socket. warm water would encourage bacterial groth as well so the water still needs to be cold

http://www.aquatics-warehouse.co.uk/acatalog/A000_HEATING_EQUIPMENT_73.html

Will the carver heater freeze up if it is left turned on?

no BUT any external water pipes including the waste pipes can freeze up,at an expansion rate of 8 to 1,this can split any pipes wide open.we had waste pipe freeze last march and it was a pig to get it defrosted.we had no damage.as a precaution we took the pump in at night,see this we had a insulated cover also for the aquaroll and a pipe cover comes with it.(miscellaneous)

I keep fish. Sounds a good idea. But if you are going to get one, buy the lowest wattage - there is a noticeable difference in price and to keep the water above freezing in an aquaroll, a 50 / 100w one should do it, and they are all thermostat controlled. But remember the feed pipes to the van would need lagging at least? ....

The last 2 I have bought have been from ebay, you should get a cheap s/h one there ...

Try this link  http://cgi.ebay.co.uk/ELITE-100-WATT-SUBMERSIBLE-FISH-TANK-AQUARIUM-HEATER_W0QQitemZ220025037333QQihZ012QQcategoryZ20758QQrdZ1QQcmdZViewItem?&mkcid=1&mkrid=710-53481-19255-0&siteid=3&campid=5339172918&customid=&toolid=10001&mkevt=1

 if it works. Or search for fish tank heater..

Ian