AF150 rework and installation

AF150 rework and installation

PostBy: agcowvet On: Fri Nov 29, 2013 10:09 am

Back a couple months got a furnace carcass from another member, and have been picking away at it in-between other projects.

Set the base up on solid concrete blocks to keep it out of the damp. Bonus is this also gives more distance for coal bin (later on; it will run on a teat dip barrel for now.)

Welded on the new cleanout flanges, and made covers. Covers of 16g with 3/4" wide 1/8" flat stock bent around flange. Don't look too hard at the welds :lol: but they aren't going to come apart anytime soon! Using Kaowool paper for gaskets on the cleanouts, had some around for the oil unit. All other gaskets are being renewed as well but with woven/braided fiberglass. The flat ones especially (on the stoker mounting plates) installation is much easier with peel and stick gaskets.

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You may note required lubricants on top of the heat exchanger: copper antiseize for bolts, finest imported Canadian thought-improver for the assembler :D

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I still have to replace the gooseneck bushing before I can assemble the right side of the furnace. That, and some new washers, is this afternoon's project.

When assembling the jackets, it works best to apply the rear and front to the base first, then apply the sides. This furnace differs from the older unit I have from the scrapyard: the blower section is totally separate and has its own base--the older unit, all on the same base.

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You may notice some color mismatching; I used Rustoleum "Royal Blue" as topcoat of rusty spots (taken to clean metal and primed). Close enough.

When wiring the blower, is it necessary to use stranded wire, or is solid acceptable?
agcowvet
 
Hot Air Coal Stoker Furnace: efm AF150
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Newmac NL-2 (oil)

Re: AF150 rework and installation

PostBy: McGiever On: Fri Nov 29, 2013 10:24 am

When wiring the blower, is it necessary to use stranded wire, or is solid acceptable?


solid will work fine.
McGiever
 
Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
Hot Air Coal Stoker Stove: HARMAN MAGNUM
Hand Fed Coal Stove: RADIANT HOME AIR BLAST
Baseburners & Antiques: OUR GLENWOOD 111 BASEBURNER "1908"
Coal Size/Type: PEA / ANTHRACITE, NUT-STOVE / ANTHRACITE
Other Heating: Ground Source Heat Pump
Stove/Furnace Make: Hydro Heat /Mega Tek

Re: AF150 rework and installation

PostBy: agcowvet On: Fri Nov 29, 2013 6:56 pm

New gooseneck bushing is in, will have to post pics of the pieces of the old one. Not much left of it in spots but the casting appeared to be undamaged. 1/2" black iron pipe works great as a driver, as posted here previously.

Any easy way to make sure that the air tube is fully seated in the blower unit? I *think* it is but seems that I ought to be able to wiggle it in a little bit further. The roll pin has engaged the slot, as it will not rotate, but just feels a little bit out from seated. Though it's probably fine.

One more hiccup though--have to chip out the remains of the old worm tube (oxidized aluminum and coal fines cemented together) before final assembly can continue. After kids bedtime will get after that part--been working in the attic on wiring when they're awake and in the basement when they aren't. For some reason "THUMP THUMP THUMP" "drag drag drag" and the sounds of an impact driver from overhead aren't conducive to good sleeping :lol:

Images added on edit:

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There were more little thin pieces but didn't collect all of them.

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Here is the new bushing in place.

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Here is the pin that aligns the coal tube. Much of this area was packed with aluminum oxide and coal fines, removed with a cold chisel and a piece of flat stock.

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Here is the coal tube in place, temporarily. Note the holes.
Last edited by agcowvet on Fri Nov 29, 2013 11:48 pm, edited 2 times in total.
agcowvet
 
Hot Air Coal Stoker Furnace: efm AF150
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Newmac NL-2 (oil)

Re: AF150 rework and installation

PostBy: agcowvet On: Fri Nov 29, 2013 7:02 pm

Thanks mcgiever, I should have plenty of 12-2 MC left over from attic project.

Where do you folks like to mount the timer/relay? Instructions warn of "an audible thump which may carry through the house if mounted on furnace or joists"...doesn't leave many options!
agcowvet
 
Hot Air Coal Stoker Furnace: efm AF150
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Newmac NL-2 (oil)

Re: AF150 rework and installation

PostBy: McGiever On: Fri Nov 29, 2013 7:14 pm

Is it possible to mount it on a wall?
Either directly or first mount a small plywood piece big enough for timer plus something else additional in future...switch or plug or light or thermometer etc.:idea:
McGiever
 
Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
Hot Air Coal Stoker Stove: HARMAN MAGNUM
Hand Fed Coal Stove: RADIANT HOME AIR BLAST
Baseburners & Antiques: OUR GLENWOOD 111 BASEBURNER "1908"
Coal Size/Type: PEA / ANTHRACITE, NUT-STOVE / ANTHRACITE
Other Heating: Ground Source Heat Pump
Stove/Furnace Make: Hydro Heat /Mega Tek

Re: AF150 rework and installation

PostBy: Rob R. On: Fri Nov 29, 2013 7:16 pm

Why not mount it on the sheetmetal jacket? I don't think the noise is as bad as you are thinking.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice/buck
Other Heating: Dad's 1953 EFM Highboy

Re: AF150 rework and installation

PostBy: wilder11354 On: Fri Nov 29, 2013 8:44 pm

Jacob, its looking good! envious...you'll have an EFM stoker before i will....but i need a boiler stoker. I will get there with a few years of looking, 1st a base thats not useable, but good for patterning off of, so i can build a new base. Then a boiler for it. More than likely new one. leary of 20year old boilers that could be on last legs, but half or better cost of new boiler top. Keep up the good work. Anxious to see the beast breathing some fire in its belly, and warming your home.
wilder11354
 
Hand Fed Coal Boiler: Harman SF260
Coal Size/Type: nut or pea, anthracite
Other Heating: crown oil boiler, backup.if needed

Re: AF150 rework and installation

PostBy: agcowvet On: Fri Nov 29, 2013 9:31 pm

Add to the spots where peel-and-stick gaskets would be great...the plate ring to air chamber 1/4" round gasket! Unfortunately the one I got is NOT peel and stick :mad: and the thing keeps falling away from where it belongs. Any suggestions on how to keep it in place for assembly? Or just apply proper words and try three times :lol:
agcowvet
 
Hot Air Coal Stoker Furnace: efm AF150
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Newmac NL-2 (oil)

Re: AF150 rework and installation

PostBy: Dennis On: Fri Nov 29, 2013 9:47 pm

agcowvet wrote:and the thing keeps falling away from where it belongs. Any suggestions on how to keep it in place for assembly?


put some high temp silicone on the gasket and stick it to the furnace
Dennis
 
Hand Fed Coal Boiler: AHS/WOC55-multi-fuel/wood,oil,coal
Coal Size/Type: Anthracite/stove size

Re: AF150 rework and installation

PostBy: agcowvet On: Fri Nov 29, 2013 10:05 pm

Glue Stik (robbed from the kids' craft drawer) worked great to temporarily hold the gasket in place for assembly. Didn't want anything too tenacious in case of grate replacement while furnace was fully assembled.

Added on edit: A milk crate or similar works well to hold the grate and ring assembly while you're putting the grates on the ring. Obviously only applicable to a square-door unit, or one that is mostly dis-assembled.

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Here is the burn pot assembled. The black cord goes to a clamp light illuminating the inside of the furnace.

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Last edited by agcowvet on Fri Nov 29, 2013 11:45 pm, edited 1 time in total.
agcowvet
 
Hot Air Coal Stoker Furnace: efm AF150
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Newmac NL-2 (oil)

Re: AF150 rework and installation

PostBy: lincolnmania On: Fri Nov 29, 2013 10:18 pm

nice!
i have been running an af150 since i got it for free in 2006
lincolnmania
 
Hot Air Coal Stoker Furnace: efm af-150 1982
Hot Air Coal Stoker Stove: alaska kodiak stoker 1986
Hand Fed Coal Stove: warm morning 1980 kenmore

Re: AF150 rework and installation

PostBy: agcowvet On: Fri Nov 29, 2013 11:50 pm

Can't go any further tonight. One of the coal tube setscrews' spots in the gooseneck housing needs to be tapped, and a new setscrew is needed. I might possibly have a tap but certainly no setscrew.
agcowvet
 
Hot Air Coal Stoker Furnace: efm AF150
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Newmac NL-2 (oil)

Re: AF150 rework and installation

PostBy: agcowvet On: Fri Nov 29, 2013 11:51 pm

lincolnmania--how do you like your unit? Can't beat the price eh!
agcowvet
 
Hot Air Coal Stoker Furnace: efm AF150
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Newmac NL-2 (oil)

Re: AF150 rework and installation

PostBy: lincolnmania On: Fri Nov 29, 2013 11:58 pm

it's a good furnace!
it all started as a pile of parts like yours around fall 2006
i''m heating a very large garage (3200 sq ft) with virtually no insulation and it does a fine job!
lincolnmania
 
Hot Air Coal Stoker Furnace: efm af-150 1982
Hot Air Coal Stoker Stove: alaska kodiak stoker 1986
Hand Fed Coal Stove: warm morning 1980 kenmore

Re: AF150 rework and installation

PostBy: lincolnmania On: Mon Dec 02, 2013 6:08 am

how are you coming along?
i got mine in pieces at the moment, i'll have to get some pics of the whole mess.
lincolnmania
 
Hot Air Coal Stoker Furnace: efm af-150 1982
Hot Air Coal Stoker Stove: alaska kodiak stoker 1986
Hand Fed Coal Stove: warm morning 1980 kenmore