After googling and some trial & error we have settled for the following treatment of the kerosene (Jet A1 fuel) which we use for our POD/GeHÃ¥ kerosene heater as well as lamps.
Add approx 1 kilogram of powdered limestone to 10 liters of kerosene. Shake and let settle for about 4-5 days. Siphon kerosene out of container so you don’t get the limestone sediment.
Mix 1 deciliter of isopropyl alcohol with a few drops of some essential oil (eg lemongrass oil).
Add the alcohol/oil mix to 10 liters of kerosene (1:100)
If the smell of the kerosene gets annoying (from spilling a little or messing with the burner…), leave a bowl with a little white vinegar overnight close to the source of the smell.
It is a little bit of work to treat the kerosene as above, but at a 70% cost saving compared to ‘lamp oil’, we feel it’s worth it.
A great web site on kerosene items is: http://www.milesstair.com/
After finding out that the heater brand “Planar”, manufactured in Russia, are being sold at less than half the price of similar German heaters, I decided to replace our old Webasto. I found a complete kit of the model 44D-12-GP-TM available from www.autoterm.cz , including a spare glow plug and freight, for only SEK 6,000. Delivery was prompt and trouble-free.
Installation was straight forward, except;
1. I replaced first three meters of heating duct (was 80mm, now 100mm). All the heating ducts have previously been insulated as it improves heating markedly.
2. Old heater had a pump lifting from the main fuel tank. New heater has a dedicated fuel tank (7 litres) – although this can be supplied from the main tank with a separate lift pump in the future. I decided for this solution so as to ensure clean fuel for the heater.
3. Connections for combustion air and exhaust are 26 and 24mm respectively, significantly smaller than the old heater, meaning that new reductions have to be made.
The heater started on the second attempt (after the fuel line had been primed…) and worked as expected.
The Planar is rougly the same size as the old Webasto, so coudl be fitted in the same location. Exhaust connection is still temporary, awaiting welding of 80-24 mm reduction. Some tidying up still left to be done…
Although manufactured in Russia, the heater is sold by Autoterm in the Czech Republic and carries a CE marking.
After installation, I was happy to confirm that the Planar actually consumed slightly less electricity than stated in the data sheet.