jonathan kedzierski

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since Jul 26, 2015
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Recent posts by jonathan kedzierski

Mark Tudor wrote:I've tested various areas of energy use in the home with a kill-a-watt meter, and one part was my laptop, designated a "gaming" laptop due to dedicated video card and a larger screen size. The laptop uses about 100 watts continuous while playing a game that has higher demands. Newer processors have had lower energy demands, but video cards are the big gotcha, plus running multiple screens. It's a luxury in my opinion, like having a pool which is also a huge energy sink. Out here where electricity starts at 21cents/kwh at a minimum, and goes up to 40 per khw after the first couple hundred, I have coworkers that spend over $500/month on their utility bills, and why it seems almost everyone is adding grid-tied solar to their homes. My last bill was about $30, including $18 of electricity use, so I'm not so worried about it  

That "kill-a-watt" meter was a great investment, I now find myself plugging it in at friend's houses, now that I have myself (dialed in) at about $8 a month usage. I am a "gamer" myself...
2 months ago
Try running it after taking off the chimney cap.
2 months ago
 Because each structure has different air flow, the answer to your question is an unknown. It's always a good idea to use an insulated vertical exhaust, it helps the system draw, especially when the mass is cold. The question to your question is what are your exhaust gas temps after they have passed thru the mass? Do you have a lot of heat left over, like 200f? Also think about the next owner of that structure, is he/she going to hook up a wood stove to the pipe going thru the roof, and take out the rmh, because they don't know what it is?
4 months ago

John Harrison wrote:Doesn't galvanised pipe give off toxic fumes when heated?

More like when it is "overheated", as long as the coating remains shiny, the nasty toxins in the coating remain in place. If I remember correctly, a post on another thread mentioned a zinc chromate coating, or something of that sort being toxic when it burns off.
4 months ago
The galvanized hvac pipe turns from shiny silver to a matte grey color long before it melts, and I agree that it being close to the top of the drum, like it is, would not give you any issues. I would see if you could work with the adjustable 90 elbow to create a better fit, then screw all the joints together. Tape all seams, including the adjustable elbow ones. Outside, you want the vertical rise to be taller, ideal is above the roof peak. It may work ok for now, but food for later thought.  
4 months ago
When I hear people who are afraid that a rocket mass heater will burn down their house, this image may change a few minds.
1 year ago

Matt Coston wrote:

Travis Johnson wrote:Trust me, they would not include and maintain the massive preheaters for these boilers if they did not have too. It has to do with condensation inside the boiler

Getting a little off topic now but - if preheating the air is beneficial to boilers, why do turbo-charged engines benefit from an inter-cooler than cools the air from the turbo before in enters the cylinder? Seems to me like these two ideas are in opposition.

Cooler, denser air is great for making horsepower. However, boilers don't run very well with their burners submersed in water.
1 year ago
These paints, or coatings can withstand advertised temperatures. However, they have to be applied to alloys that won't. The metal will degrade, and the coating won't have anything to adhere to. It will then crack and flake off.
1 year ago

Denny Romero wrote:

jonathan kedzierski wrote:

Denny Romero wrote:It's not burning as good as the first try either. There's no way rain water got into it. Has anyone had this problem?

Yes, I also find my basement rocket to produce more condensation compared to the one upstairs. Simply because the basement is a cool and damp place. Damp wood doesen't help either.

My basement stays pretty dry have a dehumidifier down there that never gets shut off. I basically have my computer/ office, tool, and plasma steel down there that I don't want rusting.

I did notice when I took the pipe off going to the chimeny that the chimeny walls were sweating too.

I'll do a better inspection this afternoon after perch fishing.

This warms my heart, as your rocket stove is drying out the basement. Basically your dehumidifier wont have to work as hard to dry out the air, the stove will do that and save a bunch of electricity! The condensation that is leaking out of the exhaust pipes is moisture that simply didn't make it out the chimney. This is not as much of a problem as it is a surprise. The pipes are giving off heat, as they should, and this is causing the condensation. Pop the cap off the tee, while the stove is running, and look inside with a flashlight, you can see the steam running through the pipe. I like to do this with an audience. I will get a roaring fire going in my stove, then pop a a clean out cap off, and have a member of the audience stick there hand inside. The look on people's faces, when they discover that the exhaust gasses are mostly steam is entertaining. For the first season I didn't tape the exhaust pipe where it met the vertical chimney. This made for a convenient way to demonstrate the fact that I could exhaust the system directly into the room, only for a moment of course, and the audience was unable to see or smell anything coming out at all. This was the awe factor, and folks were even going as far as looking for another exhaust root, because there was nothing coming out of that pipe.  
1 year ago