I don't really understand where all this paranoia of using the original SE parking heater is coming from... Were there any cases of suffocation or is it just an urban legend? I can't believe that VW would afford to let us using it with no limitations or safety disclaimers.
We spend almost 100 nights per year in the Cali in temperatures down to -15C and up to 2400 m with a lot of snow in the Alps in conditions similar to the pics below. And definitely there is no real need to sleep in cold or under 4 seasons duvet or sleeping bag unless it is your choice. On contrary, you can have really warm and cosy nights and it is easy to simulate a sauna there if you prefer
My personal experiences and opinions that are not necessarily shared by others are:
- The parking heater is perfectly safe to use all night long and the thermostat would turn it on and off.
- For longer use at altitudes higher than 1.500 m you need to upgrade it with the high altitude kit, installed by a certified Eberspacher service. You can still use original setup at higher altitudes for a shorter periods of time (e.g. few hours) but I wouldn't risk longer camping at some mountain passes or ski resorts without the upgrade. (
http://www.pfjones.co.uk/eberspacher-airtronic-d2-kit-12-volt-high-altitude-kit.html )
- Diesel fumes that you can notice sometimes in the initial stage are normal and harmless
- Using the heater constantly keeps your fresh water tank functional down to -15C and your grey waste tank down to -10C according to my experience. However, living in such extreme conditions is another story with other problems occuring (ice accumulating between the doors seals, etc.)
- Insulated screens are essential and make huge difference in freezing conditions
- Below 10C it is perfectly fine for 2 persons to sleep with sealed windows and doors - there is still a basic air circulation obviously through the ventilation system, definitely enough to keep fresh air and almost no condensation. Even in the morning you can not notice any bad air feeling.
- You can sleep in the pop-up roof down using some kind of a topper or screens with just a few degrees difference between lower and upper compartments while using a heater of course. I personally prefer 5 mm foil screens that insulate better than standard toppers or the Brandrup ISO Top.
- For the winter use it is a smart move to use propane gas instead of butane, because propane works better in cold. I even changed a Campingaz bottle with alternative ALU one and changing a safety valve. I think that in Norway this is even a standard Cali gas setup.
All in all, with these basic measures I enjoy winter nights in t-shirt, shorts and a light duvet that doesn't take too much space and I add some pics for inspirations.
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