DHW Coil/Secondary air install in 1557M Hot Blast

DHW Coil/Secondary air install in 1557M Hot Blast

PostBy: MJinLehigh On: Thu Jan 07, 2010 11:58 am

Hello all, I have been gatehring much useful info from this forum and decided it high time I contribute. I am installing an 18TL Hilkoil kit in my 1557M Hotblast this weekend. I use wood in it as we all know, they don't burn anthracite very well. I have tried coal, nut sized anthracite, but the axial rocker shaker does a poor jub evacuating the ashes evenly. I saw some mods with set screws and such, but never had the desire as I hve so much free firewood access. I will be posting pics and progress as I go, so anyone who has done this already can chime in anytime. I am also designing a secondary air kit for the 1557M and will be putting that together once I have tho coil in and working.
MJinLehigh
 
Stove/Furnace Make: USSC w/DHWC & VC Vigilant
Stove/Furnace Model: 1557M-The Green Machine

Re: DHW Coil/Secondary air install in 1557M Hot Blast

PostBy: gitrdonecoal On: Thu Jan 07, 2010 1:54 pm

i sent ya a pm. check it and call me when ya want. i own the same thing. i love burning coal in this thing, much to the others members amazement on here. i should be the "hotblast moderator" lol just kidding
gitrdonecoal
 
Hot Air Coal Stoker Stove: Keystoker 90
Stove/Furnace Make: USSC
Stove/Furnace Model: Hotblast 1557

Re: DHW Coil/Secondary air install in 1557M Hot Blast

PostBy: MJinLehigh On: Fri Jan 08, 2010 11:22 am

Ok, here it is. I received my coil last night from Hilkoil. Kudos on the superfast shipping. I ordered it Wednesday, it was on my porch the next afternoon. I chose the 18TL kit due to it already having nice, swept bends to get to and from the HWH. Also, I measured and this appears to be the largest, factory built model they offer that will fit into the side of the 1557M w/o much issue. I drilled the holes to 1 1/2" versus 1/18" so I could use my super oversized and tapered face boiler disconnects on th coil. They allow the coil to be placed just off of the side of the firebox, partially in the flame, but not to interfere with the fuel area. The tapered nose fits into the 1 1/2" hole and seals it from the inside, as well as the gaskets and washers supplied from Hilkoil. I used the remaining section of the disconnects to bush out the threads on the coil outpust so a fiber washer and the other pain of supplied jam nuts could be used to seal the air jacket back up again. I will be moving the HWH next to it tonight and plubing in a simple thermosiphon setup w/ a boiler style temp/pressure guage. Hopefully, Sunday morning showers will be using homegrown hot water. LP is $4.90/gal here and I can't take it anymore. They came and filled me up this week, it was almost $500 bucks. I called them and told them to come get their tank an LP ASAP and credit me the difference.

As soon as i figure out how to post pics, I will.
MJinLehigh
 
Stove/Furnace Make: USSC w/DHWC & VC Vigilant
Stove/Furnace Model: 1557M-The Green Machine


Re: DHW Coil/Secondary air install in 1557M Hot Blast

PostBy: MJinLehigh On: Tue Jan 12, 2010 11:55 am

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Here is the coild installed. Next post will show the working system.
MJinLehigh
 
Stove/Furnace Make: USSC w/DHWC & VC Vigilant
Stove/Furnace Model: 1557M-The Green Machine

Re: DHW Coil/Secondary air install in 1557M Hot Blast

PostBy: MJinLehigh On: Tue Jan 12, 2010 12:04 pm

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Here is the working system and the intial run data I experienced. Basically, I have more than enough hot water for my household. Fired it up at 8pm (Eagles/Cowboys kickoff time).

[b]Initial start on Jan 9th, 8:00pm
Input water Temp- [b]60 degrees
Temp rise at PRV area after firebox reaches 350 degrees-90 degrees
Coil provided 6 mins of hot water(1.6gpm showerhead) after 1 hour
Input/output water temp met at 160 degrees at 1:00am, this shows- the coil fully heated 40 gallons in 5 hours to 160 degrees

With the 1557M running at 350 firebox temp contiuously, the water temp stays at 170 degrees. I will be installing a tempering valve as our water was never this hot. The firebox continues to maintain a nice, light brown color w/ minimal creosote buildup. This is a simple setup that anyone w/ a furnace of this type could do on a Saturday morning-afternoon and have almost unlimited hotwater. I will be adding a 40 gallon, 240VAC tank downline for the warmer seasons.
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MJinLehigh
 
Stove/Furnace Make: USSC w/DHWC & VC Vigilant
Stove/Furnace Model: 1557M-The Green Machine

Re: DHW Coil/Secondary air install in 1557M Hot Blast

PostBy: TdiDave On: Fri Dec 13, 2013 1:39 pm

Any updates to how everything is working? Your title mentioned secondary air?
TdiDave
 
Hot Air Coal Stoker Stove: Leisure Line - Pocono
Coal Size/Type: Rice
Other Heating: Heat Pump
Stove/Furnace Make: Leisure Line
Stove/Furnace Model: Pocono

Re: DHW Coil/Secondary air install in 1557M Hot Blast

PostBy: TdiDave On: Sun Dec 15, 2013 8:37 pm

I installed a set of hot water coils. Hope to find out this week how it works.
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TdiDave
 
Hot Air Coal Stoker Stove: Leisure Line - Pocono
Coal Size/Type: Rice
Other Heating: Heat Pump
Stove/Furnace Make: Leisure Line
Stove/Furnace Model: Pocono