I am thinking of doing something similar, but instead of adding the heat exchanger I'm going to add and external transmission cooler and then run quick disco hoses to my internal tranny cooler (located at bottom of radiator) and run one side to a sump and the other to a camp shower. That makes sense right?
I don't follow you.
Ha, ok so the 4Runner has and internal transmission cooler built in to the bottom of the stock radiator; my plan is to install an external transmission cooler (the internal cooler is infamous for failing and mixing with coolant) to cool my transmission fluid. Then, use the stock internal cooler to heat the water by running a hose to a sump pump and connecting the hose to one side of the cooler and the other side running a hose to the camp shower. The sump will pull the water from the water source up through the transmission cooler (heating the water as the engine will be on) and then out the other end through the hose to the shower.
Ha, ok so the 4Runner has and internal transmission cooler built in to the bottom of the stock radiator; my plan is to install an external transmission cooler (the internal cooler is infamous for failing and mixing with coolant) to cool my transmission fluid. Then, use the stock internal cooler to heat the water by running a hose to a sump pump and connecting the hose to one side of the cooler and the other side running a hose to the camp shower. The sump will pull the water from the water source up through the transmission cooler (heating the water as the engine will be on) and then out the other end through the hose to the shower.
what if it develpes that famous leak?
Yeah, even if it leaks, just don't drink the water.I got the idea from a guy on expo portal who was running this setup, I'll have to go back and see if he's had any corrosion or failure issues
I got the idea from a guy on expo portal who was running this setup, I'll have to go back and see if he's had any corrosion or failure issues
The only thing I don't like about these solutions is that you have to have your vehicle running (for a while) to get hot water. Overland Journal had a fantastic article about an on board hot water setup, and its very similar to the ones you guys are talking about. I'll see if I can dig it up. But for me, I think a Zodi or something like this http://www.campingshowerworld.com/eccotemp-l5-portable-propane-tankless-water-heater.html might be better suited.
Food for thought, since the Taco doens't have a spare tire under it any more, that would be a great location for a water tank. I could get one to fit between the frame rails and then add a nice skid below it to prevent it from puncture. Figure you could add a filler neck to one of the cubbies in the rear of the bed, gravity or 12v pump feed to ... where ever you like.
.Sorry Drew, did you already mention the spare tire water tank location? I'm on cold meds and missed it.
The use of OBA to pressurize your water supply would be great, crank it up to 100 PSI and pressure wash the dirt off the rigs even.

In an old thread on TW where we talked about my original OBW ideas.Sorry Drew, did you already mention the spare tire water tank location? I'm on cold meds and missed it.
The use of OBA to pressurize your water supply would be great, crank it up to 100 PSI and pressure wash the dirt off the rigs even.
The only thing I don't like about these solutions is that you have to have your vehicle running (for a while) to get hot water. Overland Journal had a fantastic article about an on board hot water setup, and its very similar to the ones you guys are talking about. I'll see if I can dig it up. But for me, I think a Zodi or something like this http://www.campingshowerworld.com/eccotemp-l5-portable-propane-tankless-water-heater.html might be better suited.
Food for thought, since the Taco doens't have a spare tire under it any more, that would be a great location for a water tank. I could get one to fit between the frame rails and then add a nice skid below it to prevent it from puncture. Figure you could add a filler neck to one of the cubbies in the rear of the bed, gravity or 12v pump feed to ... where ever you like.