About: A Look at the Harman Mark II Coal Stove
Hello im from Tamimant PA 15 miles north of Stroudsburg,I have Harman mark 2 -you have Harman mark 1 I think --. A mark 2 has 4 grates ,get brick that lines stove but don't buy from cheap Northern Company for 15 dollars ,its junk actually brick melts, Anthracite is clean, no smoke at all -once it gets going and its a blue flame ,they call it ---blue dancing ladies. im very happy with my Harmand,we had BAD snow STORM and no power . that little stove kept1800 sqft house at 70' outside -10 uses 40lb bag in 24hrs with 1 shake at 12 hrs.you
just give fast dump of tray after 24 hrs and keep adding.dump used ash in metal container. goodluck.
IMHO: You REALLY need to rework that exhaust stack exiting the back of that stove. Instead of coming out, directly into a 90 degree elbow, then up and out thru the roof,.... you need to replace the elbow with a "T" so that the bottom of the "T" is at the back of the stove, with one side of the "T" goint up and out. Then, the lower side of the "T" is connected to another side, of another"T", and then a clean-out cap goes at the low end (the lowest, side of the lower "T". Then, run a pipe from the bottom of the lower "T", over and out to the side wall of the shop. Put a (airflow) damper in that pipe, just behind the stove, close to the bottow "T". This will contro the amount of cold, outside air that can come in and ou, into the vertical stack, to help mis with the hot stove exhaust air. This col, mixing air, will help reduce the amount of "siphoning" force that you likely have been struggling to limit, as the exhaust stack heated up, once you start burning. Also, add another (airflow) damper, into the vertical stack, at about 4' above the floor, so that it's at a height that is easy to reach. This damper limits the amount of total airflow that rises up and out of the exhaust stack. You may need to play with both damper controls, to adjust the total airflow thru the firebox, but, with a bit of experimentation, you will be able to get the stove system to work, fairly steadily, with minimal tending, and, you won't be sucking all of the hot air out of the shop, as the firebox burns! The incoming, cold, outside air, feeds the fire, and, helps cool the exhaust gases, to keep the siphoning to a minimal amount. You will be way better off if you keep the entire lining of the stove protected with the firebrick, etc.! Raw coal/coke flame will over heat the bare metal, causing eventual rusting, flaking, warping, and finally holes thru the walls! Good luck! Keep a big cast iron pan, or galvanized tub, full of water, on top of the warm stove. The water will slowly evaporate, as the stove heats it, and, the addition of a bit of humidity in the shop will be very nice, because the winter air is so damned dry, usually! Just dump out the water, if you're going to leave the shop, for the night. If you have some stove pipe thermometers, place them around, near by, to monitor the heat in the stove pipes, near the dampers. They'll soon help you to know if your system is heating, or cooling, or running at steady temperatures.
I didn’t know you lived in pa, I’m relatively close I live in western ny
I wish I could get bituminous cheaper. 4$ for 40 lbs of anthracite or I can pay 50$ for 40 lbs of bituminous. I use it for a forge though and not for heating. Anthracite is super clean burning though. Once it gets going it’s just a boring glowing rock. No smell. Small flames that are barely visible and no visible smoke
Nope don’t live anywhere near you. But I live on planet ice also. I also found a wood. Stove to heat my shop I love it hope I can keep doing it ok bye
Love your vid’s pocket
I love this stove, that's exactly how I would use it too. I leave my damper open all the time, I use the vents to control airflow and I've been burning wood since I owned a home. If I use a damper the creosote accumulates and I have to clean the chimney more. If I leave it open and burn it hot I think its safer. The chimney never gets an accumulation of creosote. When I clean it in the spring there's only a tiny amount of dust. Yeah the window is probably dickered, maybe a vinegar soak then try cleaning it but I wouldn't, too much work. Right on about oak - That stuff burns hot and leaves great coals. I burn it overnight or when I go to work. When I'm home I burn all the other trash I have. You mentioned maple, I use it as kindling, not because its the best or hottest or easiest to light, but the smoke from starting a fire inevitably gets in the room and maple smoke is pleasant.
I’m a blacksmith. That fire brick is to protect your stove and make sure the heat is where you want it. Built several different forges and ovens with fire brick if the brick goes bad and there is a constant heating and cooling of the sides of the stove it will wear out faster. The fire brick helps it cool of slower which is better for it. If you don’t want to deal with fire brick Kale wool can be an alternative. It’s a little bit easier to work with.
pocket aka the modest immortal who took the jack of all trades feat
Heat reactive epoxy to hold the fire rope seal on? Absolute madman. thumbs up
use coal and wood in the fire it burned hottest i think
Anthracite burns hotter longer. Less maintenance than wood and no creosote. That stove was built to burn anthracite.
Anthracite is king
If you want a cheap fire starter, use google to find the online contacts for local churches and ask if they have any candle stubs. Doesn't usually work for the bigger candles as they cost more, but there are usually cheap ones being used at some event or another. Some churches also do candle-lit services around holidays, and just throw out pounds and pounds of quarter-burnt cheap paraffin candles after every Christmas. They buy in bulk and most find it's cheaper to throw them out as they cost pennies to the candle, and new ones get more donations. Probably works for most other places of worship as well.
You can remelt the wax with a cheap double boiler for crafts, or pour it over dryer lint or balled up paper if you want to light a fire in a storm or want something for a camping kit, but you really don't need to most of the time.
Looks like a well made stove. I've had a few and now use a Morsø, great stove but cheaper ones are just as good, though perhaps not a durable long term. The glass fronts always get etched if you burn coal, just keep on top of the soot build up. If its not cracked there's no need to replace unless the cosmetics bother you.
If the glass is smooth on the inside use a razor blade scraper that will clean it right up.
try vinegar on the glass, should give an acid/base reaction with the gunk and loosen things a bit. Also highly recommend one of the heat powered fans, really helps to heat a room.
That boiler with piping sounds like systems that were used around here only for cooling rather than heating. I did a variety of projects where we modernized their systems and was kind of amazed at how the old systems worked. This older systems were basically rooms filled with chillers, they would freeze vast amounts of water and then pump air through the ice during the day to cool the classrooms. It wasn't exactly energy efficient but they were making use of the night time, when energy was billed at cheaper rates, to lower their energy costs. I've actually heard these type of systems are making a comeback with more efficient versions but I've not seen one locally as of yet.
The fire brick is so the coals will not burn out the steel. I'm not familiar with coal stoves,but have been burning wood stoves forover 35 years. Wood stoves come with fire brick in the lower part of the fire boxes .
Triple wall chimney is a creosote maker,( it super cools the smoke and creosote condense on the pipe, where the insulated pipe keeps it warm and it doesn't do that ), but cheaper than insulated chimney . I am still burning my original metalbestas chimney. I have replaced the flue pipes several times and that is about the only thing that needs cleaned when I brush out my chimney.
My insulated chimney pipe cost, about the same price as my Temp Wood ,wood stoves . I have one in the house and one in my 24 x 24 garage, both are the same size.
Be safe, but stay warm :- )
That's why he hasn't uploaded for so long all his videos are on pocket8(squared)