From: theise@panix.com   
      
   Hi all,   
      
   I may have alluded to this before, but last time we camped on a   
   flatspot in our Lance 1475 the night temps dropped into the 40s or   
   50s and I had trouble running the furnace on 12 V.  It's a Truma   
   Combi Eco Plus; the gas would fire up and the fan would run for a   
   minute or two, then stop--without having brought the inside temp   
   up to the thermostat setting.   
      
   You may recall that this unit was replaced under warranty earlier   
   this year (due to E6H error codes suggesting combustion air motor   
   problems).  But this more recent behavior doesn't seem connected.   
      
   As near as I can tell, the unit should run on propane with 12 V   
   power for the fan.  The battery was at full 100 Ah capacity, so it   
   wasn't a low charge state.  I'm wondering if being LI is a factor,   
   for example is it possible there is internal resistance in the   
   battery that limits the current?  Seems crazy, but I'm not sure   
   what else to think.  FWIW, it's a Li Time battery (from China),   
   and has worked as expected or even better.   
      
   I plan to call my dealer, but thought I'd check in with the   
   experienced folks here first.   
      
   --   
   Ted Heise             West Lafayette, IN, USA   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)