What Temp

Discussion in 'Motorhome Chat' started by awg, Nov 12, 2015.

  1. awg

    awg Funster

    Aug 9, 2013
    We are off to Cologne for a few days in early December to see the Christmas markets and sample the local beer.

    I have a Carthago A class with a double floor which houses the water tanks, both clean and grey, and is heated to prevent freezing. The motorhome will be empty for most of the day while we investigate the city and we don’t normally have any heating on overnight so my question is what temp should I set the heating on to run 24hrs to ensure the tanks don’t freeze or get dumped if it gets very cold outside. I had thought 5c would be ok but I’ve read trouble can start around 5c and the dump values can be set to activate as high as 8c so do I need to go for 10c? Am I correct in assuming that I won’t use any gas or electric if the outside temp is higher than I set the thermostat at? I won’t be on EHU so will only be running on gas and leisure battery for the 3 days we will be there.

    Will 10c be ok or can I get away with a lower default temp? Obviously when we are in the motorhome it will be set a lot warmer but I’m not sure how long that residual heat stays after the temp is turned down. Hopefully it will be a lot warmer than it was when we flew to Berlin last December where we spotted lots of brass monkeys walking with a limp.

  2. jockaneezer

    jockaneezer Funster

    Dec 12, 2010
    If you select 'summer temp hot water' only if it's a Truma, that will stop it dumping water due to low temps and if you're not drawing off the water, theoretically it shouldn't use too much gas.

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