Shadow Catcher wrote:Bob
I am well aware we are subject to a recall by the manufacture at any moment. From the time I started feeling bad (under the trailer) to actually dieing on the table at Toledo Hospital was about 20 minutes. I woke up with burn marks where they shocked me nine times. I was camping two months later on the north shore of Lake Superior.
MtnDon wrote:..... next to the last minute change of plans.... Change of direction and destination. Third party involvement on the other route got snafued. Now we are headed to Vermillion Cliffs National Monument on the AZ UT state line. Not as cold there but that was not the reason for the switch. The heater should still get a test.
MtnDon wrote:Wolfgang, it is one like this. I didn't buy it from thosefolks but it is the same thing. For some reason the ebay purchase history page is not bringing up all the items it should. The seller I used had them available in 12 VDC as well as AC types and in degrees F and C.
The probe is on a wire that can be shortened; place the probe where you want and the unit someplace easy to read.
daveesl77 wrote:I think I have read all the posts in this thread, so please forgive me if this has been asked and answered...
This is really interesting using the Rv water heater for cabin heat and it makes perfect sense. Has anyone done this using an on-demand type heater? My thought is that if you had a secondary pump system, on a recirculating flow line, you would then use the thermostat to activate a relay which would in turn activate the pump. Water flowing then tells the heater to fire up. As you guys note on a tank type system, if you do a closed loop, then the feed water temp will keep rising. This would also happen with the on-demand, but I think much faster. With my little 5L, it raises the incoming water about 30-50 deg F at 3/4 heat/flow rate in 10 seconds. You could then put a high temp shut down in the circuit to cut out the burner ignition once the water got to say 150 degrees or so. It wouldn't be a pressurized system, just a free flowing pump dumping heated water back into a storage unit.
Circuit would be 1) Storage Tank - 2) secondary pump - 3) Heater core - 4) return to tank with high temp cut off on igniter, but not the pump. Thermostat turns off pump and igniter.
So, is this viable or am I missing something. I ask because I already have the on-demand and will happily add the heater system if it looks doable. Unfortunately, can't really test much on the cabin temp rise now, as it is 90 in Florida.
dave
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