Protecting The Hopper

Post Reply
ghoulio
New Member
Posts: 17
Joined: Wed. Nov. 01, 2017 10:22 am

Post By: ghoulio » Sun. Oct. 07, 2018 8:45 pm

Hello good folks. I've posted several times in the past. This past year we had lots of problems with stokers. Our original stoker was very dependable but the hopper rusted and we had to get a new stoker. We had nothing but problems from it and survived much of last winter by using electric heaters. That was very expensive. After last winter we actually purchased the same model stoker as out original. We have it hooked up and ready for this winter. Before we use it I am wanting to protect the hopper so it will last as long as possible. I need to know if any of you know of something I can use to coat the inside of the hopper with to prevent it from rusting. Is there a certain kind of paint or should we cover it with something like they spray in beds of trucks? Any information would be appreciated. Thanks for taking the time to read and respond.

User avatar
McGiever
Member
Posts: 7230
Joined: Sun. May. 02, 2010 11:26 pm
Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
Hand Fed Coal Boiler: BUCKET A DAY water heater
Hand Fed Coal Stove: Warm Morning 414A
Coal Size/Type: RICE,PEA,NUT,STOVE /ANTHRACITE and EGG / BIT
Other Heating: Ground Source Heat Pump and some Solar
Location: Junction of PA-OH-WV

Post By: McGiever » Sun. Oct. 07, 2018 9:24 pm

Yeah i remember, Bituminous coal in a Combustioneer Stoker.

Sorry. I'm no help on coating a steel hopper, I use 275 gallon plastic IBC for a hopper.

RT Hauling
Member
Posts: 22
Joined: Thu. Sep. 15, 2016 7:24 am
Hot Air Coal Stoker Furnace: alaska stoker II
Hand Fed Coal Stove: florin foundry 810
Coal Size/Type: rice
Location: Coal Township Pa

Post By: RT Hauling » Mon. Oct. 08, 2018 6:47 am

I have been using a spray on paint by the name of 'Stove Bright' . It is what Alaska sells for painting their stoves. It definitely is durable from my experience.

User avatar
coaledsweat
Site Moderator
Posts: 11057
Joined: Fri. Oct. 27, 2006 2:05 pm
Stoker Coal Boiler: Axeman Anderson 260M
Coal Size/Type: Pea
Location: Guilford, Connecticut

Post By: coaledsweat » Mon. Oct. 08, 2018 7:10 am

I would avoid pickup bed liner coatings. They tend to be a non slip surface and you want the coal to slip.


User avatar
lsayre
Member
Posts: 15344
Joined: Wed. Nov. 23, 2005 9:17 pm
Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Lehigh Anthracite Pea
Other Heating: Resistance Boiler (13.5 KW), ComfortMax 75
Location: N/E Ohio, between Medina and Wadsworth

Post By: lsayre » Tue. Oct. 09, 2018 11:13 am

Surfaces with a bit of tiny but uniform bumping generally have lower friction coefficients than do completely smooth surfaces made of the exact same material.

For example: Dobsonian telescope makers learned many years ago that stippled Formica (type material) makes for a far smoother operating bearing surface than does the same bearing when covered with completely smooth Formica. And those who grind the cooking surface of their cast iron pans dead smooth are doing themselves a disservice.

User avatar
rockwood
Member
Posts: 1377
Joined: Sun. Sep. 21, 2008 7:37 pm
Hot Air Coal Stoker Furnace: Stokermatic coal furnace
Hand Fed Coal Stove: Rockwood Stoveworks Circulator
Baseburners & Antiques: Malleable/Monarch Range
Coal Size/Type: Soft coal: Lump and stoker (slack coal)
Location: Utah

Post By: rockwood » Sat. Oct. 13, 2018 6:38 pm

If the original tar coating has worn away (worn down to the metal) then I would coat it with a good quality rust-resistant spray paint. Be sure to wipe coal dust, etc. off before painting it. If the hopper is already rusted you could use one of those rust converter/reformer sprays before giving it a good coat of paint.

User avatar
carlherrnstein
Member
Posts: 973
Joined: Tue. Feb. 07, 2012 8:49 am
Hot Air Coal Stoker Stove: combustioneer model 77B
Coal Size/Type: pea stoker/Ohio bituminous
Location: Clarksburg, ohio

Post By: carlherrnstein » Tue. Oct. 16, 2018 8:44 pm

This might be too simple but, oil the coal. I use used oil engine, hydraulic, whatever.

Pacowy
Member
Posts: 3140
Joined: Tue. Sep. 04, 2007 10:14 pm
Stoker Coal Boiler: H.B. Smith 350 Mills boiler/EFM 85R stoker
Coal Size/Type: Buckwheat/anthracite
Location: Dalton, MA

Post By: Pacowy » Tue. Oct. 16, 2018 11:18 pm

Making sure the coal you use isn't excessively wet should help the life of the hopper.

Mike


User avatar
lsayre
Member
Posts: 15344
Joined: Wed. Nov. 23, 2005 9:17 pm
Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Lehigh Anthracite Pea
Other Heating: Resistance Boiler (13.5 KW), ComfortMax 75
Location: N/E Ohio, between Medina and Wadsworth

Post By: lsayre » Wed. Oct. 17, 2018 5:17 am

How would POR-15 do in protecting a hopper?

ottobody
Member
Posts: 29
Joined: Sun. Nov. 08, 2015 7:50 pm
Hot Air Coal Stoker Stove: LL Lil heater
Hand Fed Coal Stove: DS comfort max 75
Coal Size/Type: Rice, nut
Other Heating: electric baseboard
Location: Townsend, Delaware

Post By: ottobody » Wed. Oct. 17, 2018 8:48 am

I painted my hopper with stainless steel paint the last three years on my LL lil heater hopper. This year I bought a larger stainless hopper for the stoker.

User avatar
BigBarney
Member
Posts: 823
Joined: Wed. Feb. 08, 2006 2:48 pm

Post By: BigBarney » Thu. Oct. 25, 2018 1:11 pm

Just fabricate or have a hopper made with stainless steel 304 or better 316 and it will

last many years maybe your lifetime.

BigBarney

coalnewbie
Member
Posts: 7348
Joined: Sat. May. 24, 2008 4:26 pm
Hot Air Coal Stoker Stove: LL AnthraKing 180K, Pocono110K,KStokr 90K, DVC
Hand Fed Coal Stove: Invader 2
Baseburners & Antiques: Wings Best, Glenwood #8(x2) Herald 116x
Coal Size/Type: Rice,
Other Heating: Heating Oil CH, Toyotomi OM 22
Location: Chester, NY

Post By: coalnewbie » Thu. Nov. 08, 2018 9:13 am

I put a 300w sump heater on the inverted ash bin of my AK180. People who run their stoves 12 months a year so not have these problems provided the coal is reasonably dry. I never have this problem. Sure, I use a little more electricity in the summer but nothing like this effort which costs more. In fact, I am considering running one stoker on Min 2 or even 1 next year. I have the dist. fan on a separate circuit and it would remain unplugged for the summer. What am I missing?

Post Reply

Return to “Coal Stoker Boilers & Hot Air Furnaces/Stoves Using Bituminous”