Odourless
Oct.31,2000Dear Phil,I took the opportunity to take a look at John Nantz' reply and I think I know the heater he is refering to, but I'm having a major skull cramp remembering the name. If it comes to me I'll drop you a line. They are available from the major chandleries in the Northwest, along with the Force 10. At dockside we supplemented our diesel heater with a couple of small ceramic heaters on really cold nights where we had shore power, but beware, ceramic heaters are big power consumers. If the heater John is refering to is the one I think it is, it is quite an attractive item, but if I recall correctly it needed a tiled or stainless steel insulator behind it to protect the bulkhead,which involves a bit more work then the Force 10. Done right the tiled installations we've seen looks quite attractive. This model has the advantage of allowing you to see the flame, a nice feature in a cold anchorage on a winter's night. If I've got it right this is the heater I was referring to that had the 3 inch stack that I found a bit intrusive in the cabin, but that is an aesthetic call. Perhaps John can help us out on the details? A seperate cold air supply means that you are not using cabin air for ignition. If the heater burns a lot of fuel this is an issue, while if it is fuel efficent it becomes less significant. You would not want to have your cabin nearly air tight in any event because of the problems this causes with condensation, mildew and of course carbon monoxide and CO2 poisoning from not just cabin heaters, but also propane stoves and instant hot water heaters if they suffer exhaust blockages.To get to your actual question, the way the Force 10 is designed the burner preheats the diesel to a gas which is then burned to produce heat through warming plates in the heater. Combustion is odorless once the burner is properly heated, which is done by preheating the burner with alcohol which is put into a burner cup and ignited. We had no odor problems, nor have any of the other diesel heaters we have encountered, including the one mentioned by John. With respect to soot we have seen this produced from diesel stoves with dirty chimneys, but have not seen any appreciable amount produced by our heater or any other, because a clean burning gas produces very little carbon. By the way, combustion is aided by adding a cup or so of denatured alcohol to the diesel in the heater. Force 10 has instructions on the proper amount to use. Now if I could only remeber the name of the heater John is refering to...Fair winds,Brian Pickton aboard The LegendRodney Bay, St. Lucia, West Indies