First fire in MARK III with new coils - THEY WORK!!

First fire in MARK III with new coils - THEY WORK!!

PostBy: SMITTY On: Sat Oct 04, 2008 7:25 am

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It's all up & running! :punk: :dancing: VERY happy with the coils so far. Woke up this morning (after putting stove together & lighting last night) to my boiler temp of 195*! NICE!! & that was with a low fire!

Turned the thermostat on in my 55* TV room & so far it's only knocked the boiler temp down to 173* ( got up to 197* after loading up this morning ). Still feel the heat in the baseboards & the room is now 65*! This is mint! Looks like I will need to leave a zone running (which will be the coldest room, of course) to dump excess heat in the winter -- I figure with the fire cranking, it will probably bring the temp well over 200* & might pop off the relief valve.

Should be a nice winter for a change -- at least at home anyway... :lol:

Here are the links to all the threads related to installing this stove & the coils:

Hey Greg or Yanche: Water coil question for ya (Hot water coil questions)
HOLY CRAP IT'S DONE!!! and no one got killed or maimed!! (Getting stove down stairs to basement)
The project has begun: Harman Mark III heating coil install (installing coils)
SMITTY
 
Stoker Coal Boiler: Patriot Coal - custom built by Jim Dorsey
Hand Fed Coal Stove: Harman Mark III (not currently in use)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler

Re: First fire in MARK III with new coils - THEY WORK!!

PostBy: Wood'nCoal On: Sat Oct 04, 2008 7:30 am

Nice job, Smitty. :D
Wood'nCoal
 
Stoker Coal Boiler: 1959 EFM 350
Hand Fed Coal Stove: Harman Magnafire Mark I
Coal Size/Type: Rice and Chestnut
Other Heating: Fisher Fireplace Insert

Re: First fire in MARK III with new coils - THEY WORK!!

PostBy: SMITTY On: Sat Oct 04, 2008 7:32 am

Thanks! 8-)

I had my doubts about how much heat these would put out, but needless to say I am VERY surprised! :up:
SMITTY
 
Stoker Coal Boiler: Patriot Coal - custom built by Jim Dorsey
Hand Fed Coal Stove: Harman Mark III (not currently in use)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler


Re: First fire in MARK III with new coils - THEY WORK!!

PostBy: coalkirk On: Sat Oct 04, 2008 7:41 am

Very nice. Once you have serious demand I doubt you will have to worry about overheating and relief valve popping though. You are definatley not getting a Christmas card from the oil man this year. :lol:
coalkirk
 
Stoker Coal Boiler: Harman VF3000
Coal Size/Type: antrhcite/rice coal

Re: First fire in MARK III with new coils - THEY WORK!!

PostBy: Mike Wilson On: Sat Oct 04, 2008 9:48 am

Spectacular!

I want periodic reports on your system as this season goes by. I'm sure it's going to take some of the heat load off your boiler.

-- MW
Mike Wilson
 
Stove/Furnace Make: Keystoker 90 DV
Stove/Furnace Model: Jøtul Kennebec Wood Insert

Re: First fire in MARK III with new coils - THEY WORK!!

PostBy: SMITTY On: Sat Oct 04, 2008 10:04 am

Will do! ;)

Right now, the TV room is 71* :shock: That never happens! :lol:

This morning I filled the firebox right up & got the fire semi-cranking. The stack temp right where it meets the stove is just over 250*. With the TV room's circulator constantly running, the boiler was maintaining a temp of 170* and even started inching upward a couple degrees. Now that the room's thermostat is not calling for heat, it's @ 180* & climbing. Might have to open another zone today! 8-)

I also tried some different things with the circulator on my coil loop -- Right after I installed & plumbed the coils to the boiler, I opened the coil shut-off valve to see which direction the water would flow by feeling the temp of the pipes. Without a fire, it flows backwards -- from the top of the boiler to the bottom. After I lit the stove, I opened the valve & it flowed the correct way --from the bottom up. I open the flow-check when the stove is lit to allow the hot water from the stove to enter the top of the boiler (which is backwards from the boilers design).

I might try unplugging the circulator to see if it picks up more heat from the stove. I'm glad to see that the thermosiphon works in this setup! 8-)
SMITTY
 
Stoker Coal Boiler: Patriot Coal - custom built by Jim Dorsey
Hand Fed Coal Stove: Harman Mark III (not currently in use)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler

Re: First fire in MARK III with new coils - THEY WORK!!

PostBy: SMITTY On: Sat Oct 04, 2008 10:11 am

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SWEET!! (and hooottt!!)
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Just took this pic -- it's been 4 hours since I piled the coal on. I was sweating in the time it took just to take this pic! It's throwin' out some SERIOUS heat!!

You can see the rust in between the "Harman" logo -- turns out that when my basement flooded & the box was under water ( Stone Foundations - - scroll down to the pic of my stove in the flood, & look just to the right at the cardboard box) it wasn't just the glass in that box -- IT WAS THE WHOLE DOOR ASSEMBLY!! :shock: :mad:

I left the box down there until last night -- it was still soaked & full of water, so it spend a month & a half soaking wet! :doh:

So much for the pretty door. Now I have an excuse to buy a sandblaster! :woot:
SMITTY
 
Stoker Coal Boiler: Patriot Coal - custom built by Jim Dorsey
Hand Fed Coal Stove: Harman Mark III (not currently in use)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler

Re: First fire in MARK III with new coils - THEY WORK!!

PostBy: ceccil On: Sat Oct 04, 2008 12:02 pm

Smitty, I just had my 1st real fire in mine last night because it got quite cool last night. Man did the coil make hot water. Had it fired up a couple times before but didn't get that cool out so stove didn't really get ramped up. I was worried that it might not make enough hot water to shut down NG water tank. Now I feel much better and it only got down to 30' last night. No worries about it now. Now the only problem is that i'm paying more for the supply and delivery charge for my NG than I am for the amount of gas i'm using. Looks like a very nice install you have there. Hope it keeps working well for you.

Jeff
ceccil
 
Stove/Furnace Make: Keystoker, Harman
Stove/Furnace Model: 90K, Mark III

Re: First fire in MARK III with new coils - THEY WORK!!

PostBy: SMITTY On: Sat Oct 04, 2008 12:27 pm

Thanks Ceccil!

Actually if you look closely at my install, you'll notice crooked pipes. :lol: I had to do 1 of them that way to clear the expansion tank, but the other one was failure to dry-fit the pipe before soldering! :lol: But like I always say, it ain't meant to be pretty -- it's meant to make HEAT! 8-)

So far this setup is working far better than I ever imagined. After my TV room got up to temp & there was no draw on the boiler, the temp did get up to 200* & would have kept going I think. So I did a huge load of my work clothes, which kicked on the indirect-boilers' circulator & brought the temp down to 177*. I checked the temp not long after & it was back up to 195*. I turned on the thermostat up on the 2nd floor & I left for a bit so I didn't see how low the temp got from all that cold water rushing into the boiler. But when I got back (was gone maybe 10 minutes) it was @ 177*!

I never thought these coils would maintain a heating zone over 140*! It's not cold out yet, but this is far better than I would have guessed. :cheers:
SMITTY
 
Stoker Coal Boiler: Patriot Coal - custom built by Jim Dorsey
Hand Fed Coal Stove: Harman Mark III (not currently in use)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler

Re: First fire in MARK III with new coils - THEY WORK!!

PostBy: steveyrock On: Sun Oct 05, 2008 4:12 am

Good job on the coil install Smitty and glad it meets your expectations. Nice work.
steveyrock
 

Re: First fire in MARK III with new coils - THEY WORK!!

PostBy: SMITTY On: Sun Oct 05, 2008 10:10 pm

Thanks Stevey!

Got into the 60's today & the zones stopped calling for heat -- I saw 237* on the boilers aquastat!! :shock: I've got just over 20 psi in the system, so I'm not worried about boiling. The stove wasn't even cranking either! :up:

The indirect boiler called for heat just after I checked the boiler temp & brought it down to 212*.

Last night, I left the TV room zone on & turned on the 2nd floor zone -- the whole house was warmer than it had ever been! (except in July/August :lol: ) I can't believe it kept the temp up around 170* with both zones open! This is GOOOOD!

The real test will be in the cold weather. This setup will probably take all day to warm up a cold house, but I think that once everything is up to temp, it shouldn't have a problem maintaining heat -- especially if I really crank the stove up.

It got down to 40* last night & my house never cooled below 71* ! The house got up to 77* when it warmed up outside -- with a VERY low fire. This Mark III throws the heat out! It should, seeing that I can almost fit an entire 50lb bag in one shot when first starting up!

I'll post the results once the temps drop & stay low, which will be in about a month. 8-)

Time for bed........here comes Monday......... :down:
SMITTY
 
Stoker Coal Boiler: Patriot Coal - custom built by Jim Dorsey
Hand Fed Coal Stove: Harman Mark III (not currently in use)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler

Re: First fire in MARK III with new coils - THEY WORK!!

PostBy: Adamiscold On: Mon Oct 06, 2008 8:40 am

Smitty

I'm trying to figure out how you have this set up. From the looks of this you only have a boiler and no hot water storage tank? Are you basically just circulating water from your coal stove through your boiler and out the zones you choose to turn on consistently or only when they just call for heat?
Adamiscold
 
Stove/Furnace Make: Chubby Sr. Old School

Re: First fire in MARK III with new coils - THEY WORK!!

PostBy: SMITTY On: Mon Oct 06, 2008 6:36 pm

Yep, you got it!

I just let it heat up the boiler until any zones call for heat, including the indirect-fired boiler (which is basically a DHW storage tank heated with an internal coil, which is my 4th zone).

It's been pretty warm out during the day, so that's why the temp almost hit 240* on the boiler. The nice thing is, it only has a pressure relief -- not a temperature relief. So as long as the pressure stays below 30 psi, I'm good.The indirect tank has the temp/press. relief, but that temp is controlled by a computer on the unit itself, which triggers the aquastat on the boiler.

At 237* it was still under 25 psi, so I could probably get close to 250* :shock: :D. If I remember correctly, I think the boiling point of water increases 10* for every 1 psi over normal air pressure. Or is that 1* ??? I can't remember :lol:
SMITTY
 
Stoker Coal Boiler: Patriot Coal - custom built by Jim Dorsey
Hand Fed Coal Stove: Harman Mark III (not currently in use)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler

Re: First fire in MARK III with new coils - THEY WORK!!

PostBy: SMITTY On: Mon Oct 06, 2008 8:19 pm

One unexpected problem.............
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HOT!! HOLY CRAP!!!
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Forgot about the low melting point of stryofoam insulation!! :woot: toothy :funny:
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Ooops!
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I spit on the copper pipe coming out of the stove after the FIRST coil, & it sizzled away!

Now THAT'S HOT Paris!
SMITTY
 
Stoker Coal Boiler: Patriot Coal - custom built by Jim Dorsey
Hand Fed Coal Stove: Harman Mark III (not currently in use)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler

Re: First fire in MARK III with new coils - THEY WORK!!

PostBy: Wood'nCoal On: Mon Oct 06, 2008 9:05 pm

Watch those old timbers above that pipe...Don't want any spontaneous combustion from that runaway Harman you have there!
Wood'nCoal
 
Stoker Coal Boiler: 1959 EFM 350
Hand Fed Coal Stove: Harman Magnafire Mark I
Coal Size/Type: Rice and Chestnut
Other Heating: Fisher Fireplace Insert