Can you give more information?īTW, you should be able to insert pictures into your posts.
Mosquito magnet pro 1000mm pro#
What does this screw do? Adjust the air, or the propane? I don't know about the Pro model. I'm not getting a proper catalytic reaction due to improper air flow/adjustment. the adjustment screw on the nozzle housing. You may be feeding too much propane, and the regulation may not be very repeatable or accurate at low pressures. First, the only "Goss adjustable" regulators I could find on the See the blog for more on this.
Prior to reading the patents, I had thought that the process was like an old fashioned lighter fluid hand warmer that used "platinized asbestos" as a catalyst to provide a low heat without flame, but no, apparently this is not the case. The patent(s) also state that the catalyst is used to complete oxidation of any carbon monoxide to carbon dioxide.
I believe the mixture is lean because the designers required complete combustion, as the patent application(s) state that both unburned propane and carbon monoxide are mosquito repellents. The propane flow is fixed, air is supposed to be significantly more than enough. The temps are above ambient because the complete combustion adds a certain amount of heat to a known lean propane and air mixture. So, now on a hot day, the thermistor indicates 128.4C with an ambient of 44.5C and relative humidity of 23.5% (it's hot today). On the Defender, temps in the flow just after the catalyst are about 85☌ to 90☌ above ambient. What temperature does the sensor read? Or, what is your best estimate of the interior temperature? I agree that the low ΔT might be from too low combustion temperature. I have about 50 photos of the disassembly and rebuild process, but can't seem to upload them on this forum. Any constructive ideas would be appreciated. I have repaired a few of this model in the past, but this is my first complete rebuild. A related problem has to do with the adjustment screw on the nozzle housing. I don't know how many grams of catalytic beads to use, so I put 12g in this one (has to be close). My second issue has to do with the catalytic burner.
Low ΔT results in a low voltage production and slow fans. First, I am not getting good heat transfer even after using graphite sheets as a thermal interface material. Of course the propane regulator was replaced with a Goss adjustable model and the propane nozzle is clean.Īfter all of this I have a couple problems. I also sourced a small quantity of the catalytic beads from the manufacturer, so my machine has 12g of new product in it.
Mosquito magnet pro 1000mm series#
Today I have a unit operating in my yard that has 2 new fans, 4 new TEG modules wired in series and installed on a heat sink that is flat to +- 0.001 with a surface prep of 20 micro inches.
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