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It has been a while and haven't updated this thread with any progress yet. Currently looking at using a 2 thermostat setup so one will maintain a minimum operating temperature of the engine and a second inline thermostat to open and dump heat to the existing radiator if the coolant temperature...

About 30 years ago our neighbor had a small wood boiler that was a section of large steel gas line maybe 2’ in diameter and 4’ deep with a rectangular water tank welded on the top. A friend of her husbands built it and her husband connected it to the main radiator loop in the house and had...

I finally had a chance to read up on everyone’s comments, some great ideas which has caused me to do some more digging. I took some pictures of my engine water pump and thermostat housing, then looked up some drawings which didn’t have a lot of detail, but searching for the water pump 186-6178...

I finally had a chance to go though the TB for the preheater. Looks like they connect a Tee into the lower radiator hose and the other line goes where a freeze plug gets removed. Not sure where I could obtain the freeze plug hose adapter that is used in the kit. I really would rather not have...

Here is a terrible quality screen capture of the T in the lower radiator hose on an 802 that has the diesel preheater unit. You can see the smaller hose goes up to the right above the dead crank switch and a second hose comes down to the side of the block.

My plan is to leave the existing cooling system thermostat, radiator, fan, etc in place, but extract heat from the engine so the engine is typically always at a temperature just a few degrees below where the thermostat opens. That way if something shuts down or fails with my heat extraction...

Just doing some brainstorming here and thought I should start another thread. I have wanted to set up a residential cogeneration system for many years and now that I am a proud owner of an MEP-803A with only 2 hours on the clock, I feel that itch again. I suppose the robustness of the 1800 rpm...