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Showing results for tags 'air flow'.
I am trying to work out if I am being unreasonable, expecting too much or just not understanding caravan heating. We got our new Swift Challenger Sport 586 last year and we have now used it a few times when we have needed to use the heating. In most cases I have tried the heating in 4amp and 8amp electric modes assuming that this would be capable of heating the caravan to a comfortable temperature. To my surprise I found that the electric modes were completely useless leaving the bathroom and back of the caravan cold. Having hecked the vents i found that there was very little air flow coming from the vents in the bathroom and rear of the caravan My initial reaction was that there was something wrong with the pipes, so I went about checking everything was clear and connected. Sure enough it was and I connected and I couldn't find anything wrong. Having given up trying to find the fault I spoke to Truma who have advised me that I should be running the Truma 4E combi in mixed mode when I want heating. The reason for this is hat electric modes will not get the heater up to the temperature required to trigger the higher fan speed. The higher fan speed is required to push the warm air to the back of the caravan. I have now put this to the test and found that they are indeed correct, after 5 minutes on mixed mode the fan went in to high speed mode. For the first time in the history of having this caravan I felt warm air in the bathroom and rear of the caravan. The question I have is do people normally run heating constantly on mixed mode? I also have concerns about the noise and safety of mixed mode heating thought the night. Has anybody got experience of this? Finally how much gas will it use running constantly in mixed mode? Call me Scrooge but I wanted to use just electric heating as the cost is included in the pitch fees.