Harman Super Magnum Stoker

Harman Super Magnum Stoker

PostBy: Kubota2007 On: Tue Jan 21, 2014 6:46 pm

I considering installing a Harman Super Mag. in the basement of my ranch house, I want to hook up a 6" duct work to transfer heat upstairs. It's a very well insulated house about 1200sqft. My one concern is the fact it will not use a thermostat, will that be a problem. I have a Harman Magnum in my garage (not attached to house) for 20yrs,without an issue, it heats a fairly good insulated garage about 1000sq ft, I really have faith in Harman stoves. Does anyone use this newer type stove to heat their home?
Kubota2007
 
Hot Air Coal Stoker Stove: Harman Magmun 20yrs old,Harmon Super Mag just installed.
Coal Size/Type: Rice
Other Heating: Electric,

Re: Harman Super Magnum Stoker

PostBy: WNY On: Tue Jan 21, 2014 7:14 pm

Is the basement finished and/or insulated? you will loose quite a bit on the sides of the stoves, but if your basement is finished and if you can get the heat upstairs, it might work for you.

Every home is different, what works for some, may not for others. Its hard to say.

I tried with the same thing with my Keystoker 90K, couldn't keep up with only a 8" duct upstairs, upgraded to a Hyfire I (140K) with a 8" duct. it almost kept up, until I put a heat jacket on it and now it works perfectly getting all the heat upstairs.
WNY
 
Hot Air Coal Stoker Stove: Keystoker 90K, Leisure Line Hyfire I
Coal Size/Type: Rice
Stove/Furnace Make: Keystoker, LL & CoalTrol
Stove/Furnace Model: 90K, Hyfire I, VF3000 Soon

Re: Harman Super Magnum Stoker

PostBy: titleist1 On: Tue Jan 21, 2014 7:29 pm

Just curious, why won't it use a thermostat?

I have an older mag stoker in the basement of our ranch and I have the thermostat upstairs controlling the operation of the stoker. With our open stairway to the basement it turned out I didn't need to duct the hot air upstairs. I do have a return duct in the far bedroom dropped to the basement floor to help the air circulation. Total sq ft being heated is around 3400 with about 1500 of that in the unfinished basement.
titleist1
 
Hot Air Coal Stoker Stove: Harman Mag Stoker (old style) one in basement, one in workshop
Hand Fed Coal Stove: Harman Mark III on standby for long power outages
Coal Size/Type: Rice/Anthracite; Nut/Anthracite

Visit Lehigh Anthracite

Re: Harman Super Magnum Stoker

PostBy: michaelanthony On: Tue Jan 21, 2014 7:39 pm

[quote="titleist1"]Just curious, why won't it use a thermostat?

I have an older mag stoker in the basement of our ranch and I have the thermostat upstairs controlling the operation of the stoker. With our open stairway to the basement it turned out I didn't need to duct the hot air upstairs. I do have a return duct in the far bedroom dropped to the basement floor to help the air circulation. Total sq ft being heated is around 3400 with about 1500 of that in the unfinished basement.[/quote]

titleist hit the nail on the head with "...I do have a return duct..." I have found that having a return vent bigger than the heat vent gives me excellent air movement. The hot air must follow the cold air exiting!
michaelanthony
 
Hand Fed Coal Stove: Vigilant 2310, gold marc box, vogelzang pot belly
Coal Size/Type: Pea, and a little nut
Other Heating: Very cold FHA oil furnace

Re: Harman Super Magnum Stoker

PostBy: Kubota2007 On: Tue Jan 21, 2014 7:42 pm

What I understand The new stoves don't come with the plugs for a thermostat, they have a sensor wire that can be extended 25ft. My basement is no insulated, I've been heating it with wood for the last 30yrs, wood has kept the house very warm, just tired of the fear of chimney fires.
Kubota2007
 
Hot Air Coal Stoker Stove: Harman Magmun 20yrs old,Harmon Super Mag just installed.
Coal Size/Type: Rice
Other Heating: Electric,

Re: Harman Super Magnum Stoker

PostBy: WNY On: Tue Jan 21, 2014 7:45 pm

Oh ok. Makes sense then.

Most of us use a thermostat and mount it in the living area.

I use a CoalTrol Controller on my older (1996?) Hyfire and it works quite well. I can set temps, blower speeds, etc...from the living room.
WNY
 
Hot Air Coal Stoker Stove: Keystoker 90K, Leisure Line Hyfire I
Coal Size/Type: Rice
Stove/Furnace Make: Keystoker, LL & CoalTrol
Stove/Furnace Model: 90K, Hyfire I, VF3000 Soon

Re: Harman Super Magnum Stoker

PostBy: Hambden Bob On: Tue Jan 21, 2014 7:50 pm

I'd suggest checking out Capt Caper's post here. He's raved about his,yet I do believe he's got it under Thermostatic Control. You may want to PM him regarding Specifics. Oh,and welcome to the Coal Board,Smash! :up:
Hambden Bob
 
Hot Air Coal Stoker Stove: Harman 1998 Magnum Stoker
Coal Size/Type: Rice-A-Roni !

Re: Harman Super Magnum Stoker

PostBy: titleist1 On: Tue Jan 21, 2014 7:55 pm

ah i see, the sensor is a temperature sensor. I don't know how that translates to a numerical setting on the temperature control dial, but seems to me it is adjusting the feed and combustion air based on that temperature sensor as well as the exhaust sensor probe. I'd run that sensor to the upstairs so that it is running per the temperature up there instead of in the basement. Then adjust that dial to get to the desired upstairs temp.

Was the wood stove in the basement also?
titleist1
 
Hot Air Coal Stoker Stove: Harman Mag Stoker (old style) one in basement, one in workshop
Hand Fed Coal Stove: Harman Mark III on standby for long power outages
Coal Size/Type: Rice/Anthracite; Nut/Anthracite

Re: Harman Super Magnum Stoker

PostBy: Kubota2007 On: Tue Jan 21, 2014 8:08 pm

The wood stove is currently in the basement, that is our main heat, I have Electric as a back up. Electric never comes on with wood, we keep house at 72 to 75 and always have a window open. In thirty years of burning wood I've had three chimney fires, the last one, a few weeks ago was the worst, I purchased a draft inducer, that didn't help, almost impossible to take away oxygen when that was feeding it. If nobody was home that day house would have been gone. I clean wood burner and chimney once a month, now with last fire,once a week until this winteris over, then it's gone!!!! I have 20 cords of seasoned wood,that's history also.
Kubota2007
 
Hot Air Coal Stoker Stove: Harman Magmun 20yrs old,Harmon Super Mag just installed.
Coal Size/Type: Rice
Other Heating: Electric,

Re: Harman Super Magnum Stoker

PostBy: titleist1 On: Tue Jan 21, 2014 11:38 pm

Kubota2007 wrote:I purchased a draft inducer, that didn't help, almost impossible to take away oxygen when that was feeding it. If nobody was home that day house would have been gone.


That is a little too much excitement!! :shock:

Is the chimney draft that poor burning wood that you need the draft inducer?

Sounds like you already have your air circulation figured out if you have had the wood burner in the basement and were able to keep the house that warm.

If/when you get the stoker installed I would recommend piping outside air to the combustion fan. I noticed a big difference in the cold air infiltration when I did that.
titleist1
 
Hot Air Coal Stoker Stove: Harman Mag Stoker (old style) one in basement, one in workshop
Hand Fed Coal Stove: Harman Mark III on standby for long power outages
Coal Size/Type: Rice/Anthracite; Nut/Anthracite

Re: Harman Super Magnum Stoker

PostBy: Kubota2007 On: Wed Jan 22, 2014 8:28 am

I don't think I have a poor draft problem, I was trying to improve it or be able to control it. I always got a puff of smoke when I opened the wood burner door, and always have a build up of Creosote it the upper top of the chimney, my though was to supply more draft/warm air to prevent it. The Draft inducer worked great for three years. After the last fire, it's in the junk pile, back to the old way. Problem with the draft Inducer is that became coated with creoste and became unbalanced every few days. Tapping the housing would knock the build up from the paddels, the build up would fall in the lower elbow closest to the fire, I cleaned it often, but the odds were against me.
Kubota2007
 
Hot Air Coal Stoker Stove: Harman Magmun 20yrs old,Harmon Super Mag just installed.
Coal Size/Type: Rice
Other Heating: Electric,

Re: Harman Super Magnum Stoker

PostBy: captcaper On: Wed Jan 22, 2014 5:43 pm

I have my Harman Super Mag going now since last October. I have the air ducked upstairs in my 2000 sq ft home. I use the temp probe provided with the stove up stairs away from drafts in my living area. I had to extended it ( just two wires with spade terminals) to over 35 ft. It works flawless. I am a happy customer. I wish I got this thing years ago. It keeps the house within a degree or two the most of the set temp on the stove. And our temps have been well below zero often. We don't bother turning it down during the night or day as we have odd work schedules. When the out side temps get mild it turns down to almost nothing. Amazing beast for sure.
captcaper
 
Stove/Furnace Make: Harman Super Magnum
Stove/Furnace Model: Super Magnum Stoker

Re: Harman Super Magnum Stoker

PostBy: McGiever On: Wed Jan 22, 2014 5:57 pm

To the OP, please use the Fuel Calculator (at top of this page) and compare how much coal needs burned compared to the wood already known burned...your coal appliance must be able to perform on an equal basis or you'll be dissappointed w/ results.

YOU NEED TO COMPARE APPLES TO APPLES. ;)
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: Harman Super Magnum Stoker

PostBy: Kubota2007 On: Wed Jan 22, 2014 7:50 pm

Thanks Captcaper, just the information I was looking for. Really like my Harmon Magnum, now to find a good price on a new Super Magnum, first price was around $3600. and I've been told end of this month starts a $250.00 rebate, there is another on line rebate of $100.00 but can use the two together. Thanks for your help Guy's
Kubota2007
 
Hot Air Coal Stoker Stove: Harman Magmun 20yrs old,Harmon Super Mag just installed.
Coal Size/Type: Rice
Other Heating: Electric,

Re: Harman Super Magnum Stoker

PostBy: captcaper On: Thu Jan 23, 2014 7:31 pm

Kubota2007 wrote:Thanks Captcaper, just the information I was looking for. Really like my Harmon Magnum, now to find a good price on a new Super Magnum, first price was around $3600. and I've been told end of this month starts a $250.00 rebate, there is another on line rebate of $100.00 but can use the two together. Thanks for your help Guy's


I ordered the blocking kit so all the forced hot air goes up the duct work. And there is convection panels on the side that works good.
Use the room temp probe and extend it if you need to get it in a upstairs room. Check in later about the settings to use. Get a manometer installed permanent if you haven't done so. Also a Barometric Damper.
The stove is well made and easy to use. The control panel seems to adjust the fan,etc. for any changes in the weather and room temp. We were 20 below zero last night again. Last weekend we were 40's. I haven't touch the settings. I just add coal and empty the fines and ash pan. Harman also answered 3 tech question emails for me so I'm happy with them on that.
The stove or the parts aren't made in China like some claim it seems. Only some of the office furniture the parent company has makes. The Hearth products are totally made here in the USA. See my finds on that below.
I was curious if it was true the claims about Harman and China so I went to the parent site and found this http://phx.corporate-ir.net/phoenix.zhtml?c=98627&p=irol-irhome. On the right side of the page in PDF is the annual report. I read alot and didn't find any Hearth product they make made in China or parts of it.
But I did find this "The Corporation manufactures office furniture in Alabama, Georgia, Illinois, Indiana, Iowa, Minnesota, New York, North Carolina,
Texas, China and India. The Corporation manufactures hearth products in Iowa, Maryland, Minnesota, Washington and
Pennsylvania."
Also this "In both the office furniture and hearth products industries, we also face significant price competition from our competitors and
from new market entrants who primarily manufacture and source products from lower cost countries. Such price competition
impacts our ability to implement price increases or, in some cases, even maintain prices, which could lower our profit margins. In
addition, we may not be able to maintain or raise the prices of our products in response to rising raw material prices and other
inflationary pressures.
The concentration of our customer base, changes in demand

I guess some of the office furniture is made in India and China but no where in the report does it mention China for Hearth products.
captcaper
 
Stove/Furnace Make: Harman Super Magnum
Stove/Furnace Model: Super Magnum Stoker

Visit Lehigh Anthracite