Scott Davidson

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since Nov 13, 2014
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Recent posts by Scott Davidson

Looks like a real clean build. I am wondering about the two rods sticking up to the right of the firebox, please do tell.
Scott
5 years ago
well I have spent the night calculating wood btu etc. right now I burn 12 pcs of dry fir/hemlock mix, 4 lbs per pcs. is about 250,000 btu input in about 12-14 hours. my stove is rated at 75% so give it 40%, Im getting 100,000 btu into the boat. none at night as I don't wake up enough to feed it. A 250 gallon 1/8" water tank will absorb 250,000 btu going from 50f to 150f. thats 10 pcs of wood. that same tank will radiate app 18,000 btu/h (if painted black) so in 6 hours 108,000 btu, the water would drop to 110f or so. This would give me the night heat I so desire, this would require 5 pcs of wood to replace so about 2 hours and the rest of the days burn 2 hours?? goes into the ship. Consistent heat is better for everything. My humidity downstairs is 54-64% while some heat is on. gets to 76% when cold for a few days. Read somewhere that Ernie and Erica burn 35-40 lbs a day in a 4 burn during the winter, I may yet have even heat and save some wood.
I have tried making a drawing of the build area using google draw, its crude but may explain my plan. It will include all the proper finishing and details not mentioned.
I have been advised by someone who knows (Ernie) that I should not consider the batch unit for this application and best to go with the J unit, that's good enough for me
The heat produced downstairs is transferred up by:
1: the chimney is single wall up to the ceiling, then super pipe,
2: a 12" dia. pcs of pipe inserted in the deck allowing heat to flow upstairs,
3: the stairwell.
The basement and living room insulation is r12 on the walls r20 under the basement floor and in the living room ceiling. The steel deck between the living room and shop can transmit heat to the jointly connected steel hull which sits in 42f water most of the year.
The upper house has 3-3x6 windows, 2-4x6 windows, 1-5x5, 1-5 foot slider, 1-3x4 xo galley window, and 2-1.5x5 panes in the two exterior doors. Like I said a wall of glass, but when you live in this beauty you have to see it!

Scott
5 years ago
Ok I looked up the bell idea, not for me as I am looking for thermal mass to radiate heat through the cold nights. It takes about 3 hours high burn to get the upper house to 18C.from about 2C. Plus there is little room to spare around the upper stove pipe.
Keep them coming.
Scott
5 years ago
About 3 am I came to the same conclusion about the length of pipe. Started thinking about water tank for mass storage. Easy to weld,add 2 gallons of boiler treatment to the water and a diapram expantion tank, would run app. 12 feet of pipe inside the tank and 3 90's. 4 feet of pipe,1 90,2 45's and 12 feet to the rain cap.
5 years ago
I am the proud servant of the John T. Naden a retired 1955 Canadian Navel water tanker. In the two years I have had her I have added an upper living room and transformed the 4 water tanks into one working area. This gives me 18'x42' of usable area downstairs. this area has my shop, two staterooms, fireplace, wood rooms and other. The wood stove is a S244 Century that is only two years old and is on its last legs. cracked glass,
SS baffel is rotted out etc. I would like to build a batch feed RMH along the centerline (one foot off center) easily countered by movable ballast. My total area for stove and mass is 8' fore and aft. 7.5 ' height and would like to keep the width under 2'. I have an existing 6' chimney. My thoughts are of a mass 6' long 4' high 18" wide. mass would contain 20 feet of 6" duct, 6-90's, and 2-45's leading into the existing chimney. I thought of the outside of the mass to be built on the outer layer of 4x8x16 cinder block with the cavities lined up to allow for convection exchange through the night. this mass I can secure to the center bulkhead by welding rod to the bulkhead and tying into the mass as it is built up I would use my plans of Ernies 6" unit and a 33 gallon barrel, would like to modify into cast fire chamber/chimney, would like to use external air makeup, the lower area has a continues small fan extracting moist air off the floor area to outside, would like to keep that system balanced. Any thoughts would be gratefully considered
Scott
5 years ago