I didn't check the bus schedule until I was done shopping - and found that the bus only returns to the big city every hour. Sigh. At least I had a book. I took the bus because it was closer and I had big backpack full of project supplies.
Today's project was "Disassemble part of the Heater". Our boat has a diesel drip pot heater in one hull. It starts out burning liquid diesel but within say 10 minutes it's hot enough that the diesel turns to vapour and burns very cleanly with a blue/orange flame. This heater doesn't use any electricity unlike the popular Espar/Webasto types, nor does it have fancy circuit boards that decide that the heater needs maintenance NOW on a cold night. A developmentally delayed monkey with a screwdriver could work on it. It's so simple I laugh. But it puts out the heat really well. Unfortunately it's down in Maia's port hull. So her hull gets warm, the upper main saloon gets really toasty (like 25C if you don't turn it down), but our starboard hull is cold.
So when I installed it, I fitted a small hot water tank in the heater's fire chamber, ran some radiator hoses to the starboard hull, and fitted a small motorcycle radiator I found at a
But the radiator was expecting 50 mph motorcycle wind to get rid of heat, the large but weak computer fan was barely able to push air through the radiator, and well, very little heat got transferred. It was good for warming a small area near your feet when cooking but that was about it.
Our favorite thing in bed was to put your hand on the nearby very hot hose (incoming or outgoing it didn't matter, both hoses were stinking hot) and then place them on each other's back. Momentary bliss.
It would have been better to buy an expensive MSR radiator/fan for this setup, but they draw at least 2-3 amps. My homebrew setup only was about 0.5 amps. So today's project was rip it all out. I'll use an overhead fan in the salon and pump the superheated air near the roof down into that hull. Uses less electrictiy and probably is more effective.
I forgot how convoluted this installation had been - and of course the boat was empty when I did it. About 2/3 of Maia's bookshelves had to be emptied before the hoses could be removed (don't worry kid, I put them back tidier than before).
I'm saving the 16 hose clamps that this job took. Hose clamps are like donuts - you can never have enough.