

| Subject: | Re: Dometic Fridge Mod Update |
| From: | Keith Ovregaard |
| Date: | Thu, 28 Jun 2007 12:48:49 -0700 |
Thanks Todd Good point about the door seal. I will check that out. Yes, there is a fan on top of the heat sink inside. Not sure if adding more heat sink would make much difference. On Jun 28, 2007, at 12:29 PM, rubatoguy@comcast.net wrote: > Did you check sealing around the door? > I've always felt that the door set-up with the Dometic fridge was a > design which would allow lots of cooling losses because of bed > sealing. > > Also, did you add a fan inside the fridge to blow air over the heat > sink on the inside? > Have you considered adding extra mass on the inside heat sink (maybe > adding some computer CPU heat sinks) > > > Todd > '88 Westy > > > -------------- Original message ---------------------- > From: Keith Ovregaard <kovregaard@COMCAST.NET> >> For those of you interested in the results so far on the mods I did to >> the fridge... >> >> Problem: >> Not cold enough during warm daytime temps, would not start on LP very >> easily, fan in the back was not working at all, lots of heat coming >> from the vent in back of the stovetop heating up the van too much. >> >> Mods done: >> Added 4 fans (one exhausts hot air out the >> what-used-to-be-city-water-inlet, two are cooling the fins in back of >> the fridge and one circulates inside air), cleaned burn chamber, >> cleaned orifice, blew out intake/exhaust/drain tubes, added check >> valve >> to pump, reamed out pump outlet, added extra pump inlet hole, wrapped >> intake and exhaust flues and burn chamber with fiberglass insulation, >> added foil-backed foam insulation to back, bottom and sides (had to >> remove it from one side to fit), replaced thermal mastic with Radio >> Shack silicone-based heat sink compound, insulated area in back of >> cabinets with 2 layers of foil bubble insulation. >> >> Enough already! >> >> Results: >> Disappointing:-( >> After re-installing the fridge, I turned on the AC mode, the temp >> control to maximum cooling and let it chill down over night. It is >> empty for this test. This morning the temp inside the fridge was 28�F. >> Outside temp was 65. So, a 37� differential. I switched to LP mode. >> Started right up! Just as before, I could hear the flame very clearly >> at the flue. Right now, the temp inside the fridge is almost 41 and >> outside is 75, a 34� differential. The exhaust fans are doing an >> amazing job of cooling and almost NO warm air is coming out of the >> vents behind the stovetop or to the left of the cabinet. I can feel >> cool air going into the area under the fridge and warm air coming out >> of the new exhaust port outside the van. Ventilation is working fine. >> >> Question is, why is this thing not working any better with all of >> these >> "improvements"! >> >> Any suggestions? Roger? Anyone? >> > Keith O >
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