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Ok thanks again :cheers

So do you just let your fans run all night? I was thinking that allowing the thermostat to control the fan and pump would use the least amount of electricity.

So I think I have a plan for how this will be laid out. Espar>hot water heater>5 gallon storage tank>radiator and floor circuit>auxiliary pump>back to espar. This way the espar is left alone to cycle on and off based on coolant temp and the thermostat will cycle the fans and pump to regulate...

Ok now I am really getting it. I leave the espar unit turned on and allow it to cycle on and off based on water temp but then I control cabin heat by thermostatically switching the radiator fans and auxiliary pump.

I like this idea too. Should prevent hot spots on the floor. My other thought was to use aluminum sheet over the tubes to spread the heat and still have the planned wood floor over that.

What an odd, slow rampage. Was he drunk? How did they stop him?

Thanks for the help guys! Definitely have a better understanding now.

So you don't have a separate pump for the radiator? Only fans?

I was just looking at calorifiers and noticed the twin coil styles. Now I know what the second coil is for. Makes sense now. My whale unit doesn't have the 2nd coil so I may do the extra tank of coolant instead. On second thought, I am going to be a bit short on space inside the camper so now...

Maybe I am over thinking it. I know you can control one thermostatically but that could mean short cycling in a small camper like mine. So with your 5 gallon tank, you run a separate pump that circulates the hot coolant to your radiator and floor heat circuit correct? I think that is the part...

Well from what I see, a calorifier is just a hot water heater. So it's stores hot fresh water, not hot coolant. The loop inside doesn't have much volume. So unless people are running fresh water in a loop through their heating circuit I am missing something.

No the espar heats to a certain temp, then cycles to low and then shuts off if the temp keeps rising. I am beginning to realize why people have such complex systems now. You have to have enough volume and radiators or towel racks or in floor heat to shed the heat made by the espar or it will...

A calorifier is the same as a hot water heater correct? Seems like once the calorifier was fully heat soaked it would no longer prevent short cycling.

Well I've got a whale marine hot water heater. Was planning on that being first in series with the radiator then in floor heat. I don't think I'll have a problem getting the recommended system volume

For me I have a hard time figuring out what I need to shed all the heat that the Espar provides. Maybe I should consider in floor heat to go with the radiator? I guess for a cold night, I don't want the Espar short cycling but I also don't want it too hot. My camper is fairly small. I've been...

Great response! thank you. I was thinking finned 3/4" baseboard tubing.. http://www.slantfin.com/wp-content/uploads/2015/11/Bare-Elements-Ratings-107.pdf According to that chart it's 578btu/hr per foot that 17,340 with 30 ft. The dimensions of that stuff makes me think that I don't have...

Seems that people mostly use a small radiator with a fan to heat their campers when the heat source is hydronic. My camper is rather small and I am thinking that baseboard heater pipes would work well enough and require no fan. I could install them along the edge of the floor in my camper. That...

Yeah all those things sound like the perfect roof coating for an RV.

I looked up the cost for a 5 gallon bucket and honestly that seems very reasonable for what they claim it provides.

That gacoroof looks great! Thanks for the idea. How thick does that go on and how many coats are shown in your pics? How heavy is it once applied and how much did it take to cover your roof?