Hopper on a Chubby Stove - Is it Possible?

Hopper on a Chubby Stove - Is it Possible?

PostBy: JRLearned On: Fri Aug 16, 2013 1:49 pm

Does anyone think it's possible to build a handfed hopper into a Chubby Stove? The chubby has a round plate in the top casting that is removable. I've seen the tapered rectangular hoppers that hang just above the fire box on the Hitzer EZ-Flow and others. It seems to be a basic concept. The coal goes in the tapered rectangle and just sits on top of the center of the coal bed. As the coal bed it shaken down or compacts during burn the hopper dumps more onto the bed. With the chubby's round lid opening, you coudln't get tapered without some conical shaped hopper, but just a cylinder (more or less a glorified piece of stove pipe) with a flanged end could hang from the lip of the opening and the existing round plate could site on top of the flange... or something like that.

It wouldn't be a very high capacity hopper and I haven't taken measurements yet, but it might help with Just a little extra fuel for overnight burns. What do you think?

If the hopper tube extended up and out of the stove and sat above the top casting like some conical shape with a heavy steel lid would it be a fire or CO hazard? I wouldn't think there would be any upward draft in the tube. As it is the Hitzers and stoves with hoppers aren't sealed with gaskets I don't think, just a flap on top of the stove or double steel door, right? But, then again they are contained within the stove and don't come up out of it. Opinions on this?

Other ideas on how to get a hopper on a Chubby?
JRLearned
 
Stove/Furnace Make: Chubby Stove
Stove/Furnace Model: FrankenChubby

Re: Hopper on a Chubby Stove - Is it Possible?

PostBy: dcrane On: Fri Aug 16, 2013 2:01 pm

JRLearned wrote:Does anyone think it's possible to build a handfed hopper into a Chubby Stove? The chubby has a round plate in the top casting that is removable. I've seen the tapered rectangular hoppers that hang just above the fire box on the Hitzer EZ-Flow and others. It seems to be a basic concept. The coal goes in the tapered rectangle and just sits on top of the center of the coal bed. As the coal bed it shaken down or compacts during burn the hopper dumps more onto the bed. With the chubby's round lid opening, you coudln't get tapered without some conical shaped hopper, but just a cylinder (more or less a glorified piece of stove pipe) with a flanged end could hang from the lip of the opening and the existing round plate could site on top of the flange... or something like that.

It wouldn't be a very high capacity hopper and I haven't taken measurements yet, but it might help with Just a little extra fuel for overnight burns. What do you think?

If the hopper tube extended up and out of the stove and sat above the top casting like some conical shape with a heavy steel lid would it be a fire or CO hazard? I wouldn't think there would be any upward draft in the tube. As it is the Hitzers and stoves with hoppers aren't sealed with gaskets I don't think, just a flap on top of the stove or double steel door, right? But, then again they are contained within the stove and don't come up out of it. Opinions on this?

Other ideas on how to get a hopper on a Chubby?


sure its absolutely possible and would work... but Chubby as well as Crane determined that the benefit is so minimal its "stupid", these stoves have no problem burning overnight as they sit (you essentially touch it once in morning and once at night)....adding a hopper and increasing the cost of the stove by $1k is little more than a wonderful marketing ploy that clearly WORKS!!!
dcrane
 
Hand Fed Coal Stove: Crane 404

Re: Hopper on a Chubby Stove - Is it Possible?

PostBy: franco b On: Fri Aug 16, 2013 2:58 pm

Adding a hopper to increase burn time is not worthwhile as Dcrane points out. The increase is minimal. It could be a lot more if the stove had a motorized shaker timed to give it a bit of a shake every hour. That's the concept of many stokers.

The beauty of a hopper is to pre condition the coal for the next shake. It will also have turned some of the coal into coke. Recovery time after a new load of coal in the fire pot is much faster than with cold coal. Those things are very worthwhile and those who have graduated from a stove without hopper to one with hopper and thermostat do not want to go back; the difference is very noticeable in tending ease.

Stove pipe for a hopper would last about one hour or less. It has to be heavy cast iron. Take a look at the magazine in the Red Cross thread.
franco b
 
Hand Fed Coal Stove: V ermont Castings 2310, Franco Belge 262
Baseburners & Antiques: Glenwood Modern Oak 114
Coal Size/Type: nut and pea

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Re: Hopper on a Chubby Stove - Is it Possible?

PostBy: JRLearned On: Fri Aug 16, 2013 3:02 pm

franco b wrote:Stove pipe for a hopper would last about one hour or less. It has to be heavy cast iron. Take a look at the magazine in the Red Cross thread.


The hopper in a Hitzer doesn't look like anything more than 1/8" - 3/16" hot rolled steel. Are any of the hoppers in those stoves made of cast iron?
JRLearned
 
Stove/Furnace Make: Chubby Stove
Stove/Furnace Model: FrankenChubby

Re: Hopper on a Chubby Stove - Is it Possible?

PostBy: franco b On: Fri Aug 16, 2013 3:10 pm

I don't know the specs for the Hitzer, but the bottom lip area has to be much heavier to last. The bottom of a Franco Belge hopper is over one inch thick while the rest of the body is about 1/4 inch. All cast iron.
franco b
 
Hand Fed Coal Stove: V ermont Castings 2310, Franco Belge 262
Baseburners & Antiques: Glenwood Modern Oak 114
Coal Size/Type: nut and pea

Re: Hopper on a Chubby Stove - Is it Possible?

PostBy: dcrane On: Fri Aug 16, 2013 3:30 pm

cold rolled 1/4 is the Hitler front plate I believe (it may be a nice idea to integrate the internal hopper into a baffle as well (exhast air needing to go toward sides <<>> before getting to a rear vent flu pipe), I know vintage stoves used Cast Iron for the Magazine/Hopper (this is better in my mind because this thing would be taking a beating for sure). I personally don't keep my coal in the wet/cold/outdoors (so I don't need to "prepare" my coal in a hopper... which in mind would be the only purpose of it since id still be touching it twice per day no matter wtf hopper I had).
dcrane
 
Hand Fed Coal Stove: Crane 404

Re: Hopper on a Chubby Stove - Is it Possible?

PostBy: freetown fred On: Fri Aug 16, 2013 4:32 pm

Yep JR, you now have the designers of the CHUBBY rolling over in their graves ;) You're just chompin at the bit with that new welder! Hell my friend, anything's feasible. Nothing ventured, nothing gained. :)
freetown fred
 
Hand Fed Coal Stove: HITZER 50-93
Coal Size/Type: BLASCHAK Nut/Stove mix

Re: Hopper on a Chubby Stove - Is it Possible?

PostBy: tcalo On: Fri Aug 16, 2013 6:47 pm

Hand feds are meant to tinker with. If it's ease your looking for get a boiler!
tcalo
 
Hand Fed Coal Stove: Chubby Coal Stove
Coal Size/Type: Nut Anthracite

Re: Hopper on a Chubby Stove - Is it Possible?

PostBy: Rob R. On: Fri Aug 16, 2013 7:49 pm

It is possible, but probably not practical for the reasons already mentioned. Part of the beauty of hand-fired equipment is the simplicity...if it were me I'd run that Chubby just the way the designer intended.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Coal Size/Type: Rice/buck
Other Heating: Dad's 1953 EFM Highboy

Re: Hopper on a Chubby Stove - Is it Possible?

PostBy: franco b On: Fri Aug 16, 2013 8:40 pm

Rob R. wrote:It is possible, but probably not practical for the reasons already mentioned. Part of the beauty of hand-fired equipment is the simplicity...if it were me I'd run that Chubby just the way the designer intended.

That makes sense, but it also makes sense to want to improve things if possible. Things like a thermostat and hopper are not terribly complicated and if carried out successfully could be an improvement. What the amateur has going against him is the difficulty of trying different options and the lack of experience and tooling that the manufacturer has.
franco b
 
Hand Fed Coal Stove: V ermont Castings 2310, Franco Belge 262
Baseburners & Antiques: Glenwood Modern Oak 114
Coal Size/Type: nut and pea

Re: Hopper on a Chubby Stove - Is it Possible?

PostBy: ONEDOLLAR On: Fri Aug 16, 2013 9:27 pm

JR

You should have NO PROBLEM in getting 14 hours or more in burn time with your Chubby. I get an EASY 12 to 14 at 450f in my Chubby Jr and it is about half the size of a regular size Chubby. Fill the firepot up and mound some more coal on the top and let her burn!
ONEDOLLAR
 
Hand Fed Coal Stove: 2014 Chubby Prototype
Baseburners & Antiques: Crawford #2 Base Heater
Coal Size/Type: Nut/Anthracite

Re: Hopper on a Chubby Stove - Is it Possible?

PostBy: JRLearned On: Fri Aug 16, 2013 10:32 pm

freetown fred wrote:Yep JR, you now have the designers of the CHUBBY rolling over in their graves ;) You're just chompin at the bit with that new welder! Hell my friend, anything's feasible. Nothing ventured, nothing gained. :)


It's true! I keep suggesting things around the house that could use a welded addition! My wife says I'm trigger happy. And my son keeps wearing the helmet around pretending he's a robot. :lol:
JRLearned
 
Stove/Furnace Make: Chubby Stove
Stove/Furnace Model: FrankenChubby

Re: Hopper on a Chubby Stove - Is it Possible?

PostBy: JRLearned On: Fri Aug 16, 2013 11:00 pm

franco b wrote:
Rob R. wrote: What the amateur has going against him is the difficulty of trying different options and the lack of experience and tooling that the manufacturer has.


And the risk of ruining their investment in an old stove off Craigslist. :hangover:
JRLearned
 
Stove/Furnace Make: Chubby Stove
Stove/Furnace Model: FrankenChubby

Re: Hopper on a Chubby Stove - Is it Possible?

PostBy: dcrane On: Sat Aug 17, 2013 5:49 am

JRLearned wrote:
franco b wrote:
Rob R. wrote: What the amateur has going against him is the difficulty of trying different options and the lack of experience and tooling that the manufacturer has.


And the risk of ruining their investment in an old stove off Craigslist. :hangover:


Also remember on a Chubby everything is cast iron (bolted and glued on to a steel barrel), welding cast is all but impossible (if it is to be attempted, the rods are extremely expensive and the welder has to be extremely experienced to even attempt such feats of magic). Welding cast iron is just not smart unless its a situation where you have NO OTHER alternative (Like repairing a $5,000 antique where parts are simply unavailable to replace).

It may be good experience to attempt welding some cast iron just to understand how difficult and messy it is :lol: I have many a puddle of odd shapes and blobs that stick to nothing I now call "Art" :lol:

As OneDollar say's a Chubby is a great stove for mounding anyways (you can mound a good portion of coal ontop that will "settle" as the firebed is burned.
dcrane
 
Hand Fed Coal Stove: Crane 404

Re: Hopper on a Chubby Stove - Is it Possible?

PostBy: JRLearned On: Sat Aug 17, 2013 8:42 am

There will definitely be no welding of any cast iron. I would not attempt it. My father tried once to repair a stove grate on the cannon heater, and he IS an experienced welder, and it didn't work.
JRLearned
 
Stove/Furnace Make: Chubby Stove
Stove/Furnace Model: FrankenChubby

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