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Old 04-13-2012, 10:58 AM   #1
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Great idea...I think

So, I am not one for being cold and I like "free" heat. Here is my idea. I am going to install a jacket water heater for a small diesel engine somewhere on the underside of my camper, run some copper pipes alone the floor and recirculate it through. Houses have it right? So why not my camper! Anyone done this? I will post some pictures of my drawings.
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Old 04-13-2012, 11:13 AM   #2
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So like a tank heater used on heater hoses.
only flaw I can see is those don't circulate well.
They normally draw cold water from the bottom of engine
and return heat to the top.
since your installation would be vertical I don't believe it will work
You would need a heat source and a pump as well as figure in restrictors

Imo sounds like alot of work for something that may
Or may not work.

Propane is 20.00 for 30lbs I only go through 2 tanks a year.
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Old 04-13-2012, 11:21 AM   #3
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The heater i am talking about is a positive displacement pump and heater all in one.
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Old 04-13-2012, 01:07 PM   #4
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Ok .........
Next question is how might you plumb around all the
cross braces from frame to frame?
As well as get above all the tanks?

Don't get me wrong I like your idea I'm just thinking out loud for you
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Old 04-14-2012, 11:52 AM   #5
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Well, looking under it. It only has one tank which won't matter because it's under the sink/stove. And only one cross frame, which has holes for the wires, so I'm gonna run them through there.
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Old 04-14-2012, 03:06 PM   #6
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How is running a diesel engine creating free heat? Maybe I am not understanding the design? It sounds like you want to create radiant floor heat as is common in modern homes...not sure if your intent is for the floor heating tubes to be inside the cabin or outside, mounted to the underside of the camper itself. If the latter, you would need excellent reflective insulation to keep from losing all the energy to the outside air.... It will have a hard time radiating up through the plywood camper floor.

If you were going electric, which is the way most radiant retrofits go, you can roll down pre-wired low voltage rolls, then put a tile or vinyl floor over that and have easy DIY radiant floor heat.
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Old 04-14-2012, 08:22 PM   #7
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It is just a little electric pump, but that premade stuff you're talking about sounds like it would take a few weeks less! Can I get that from home depot?
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Old 04-14-2012, 08:28 PM   #8
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Here a starter kit 10 Sq ft Radiant Floor Heating Kit with Honeywell Thermostat Built-In

Also check out brands like WarmlyYours
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