DHW Off the Stoker

Stoker Coal Boilers automatically feed the coal and have controls and pumps just like any conventions boiler. They are intended to be used as a primary heat and often have domestic hot water coils as an added bonus. They can be set up independently or in dual sytem with your existing oil/gas boiler. They can accommodate both hot water base board or steam plumbing.
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JohnnyAsbury
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Stove/Furnace Make: Keystoker
Stove/Furnace Model: 90 - Direct vent
Location: Southern New Hampshire

Post Wed. May. 21, 2008 9:37 am

If heating DHW from a stoker that is located on the first floor, and the storage tank is in the basement, does the pressure relief valve absolutely need to be next to the stoker ? Looking at some diagrams, it shows that it is. I wouldnt want it going off destroying the hardwood floors upstairs if there was any excess pressure. Thoughts ? Ideas ? Thank you.
John
Burning Blaschak

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LsFarm
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Stoker Coal Boiler: Axeman Anderson 260
Hand Fed Coal Boiler: Self-built 'Big Bertha' SS Boiler
Baseburners & Antiques: Keystone 11, Art Garland
Location: Michigan

Post Wed. May. 21, 2008 9:44 am

Yes the PRV must be at the high point in the plumbing.. But the PRV 's exhaust can be plumbed down through the floor, to dump on the basement floor.. just another hole to drill..

Greg L
Burning Pea/Buckwheat through an antique stoker [semi retired SSboiler],
Running an Axeman-Anderson 260M boiler burning Pea, About 150-250#per day
Farming, Fixing, Fabricating and Flying: 'spare time' what's that?

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Freddy
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Stoker Coal Boiler: Axeman Anderson 130 (pea)
Hot Air Coal Stoker Stove: Reading piece o' junk in the barn (rice)
Coal Size/Type: Pea size, Superior, deep mined
Location: Orrington, Maine

Post Wed. May. 21, 2008 10:43 am

And nothing wrong with having two relief valves, one at high point, one on tank.
Orrington, Maine
Fred

"If you can't say something nice, don't say anything at all".

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stoker-man
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Hand Fed Coal Boiler: 1981 efm wcb-24 in use 365 days a year
Coal Size/Type: Anthracite/Chestnut
Other Heating: Hearthstone wood stove
Location: Lehigh Valley, PA

Post Wed. May. 21, 2008 3:54 pm

I piped both of my prv to a drain using copper for the first 10 feet and then cpvc for the rest.
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JohnnyAsbury
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Stove/Furnace Make: Keystoker
Stove/Furnace Model: 90 - Direct vent
Location: Southern New Hampshire

Post Sat. May. 24, 2008 9:07 am

My DHW is currently off the oil burner. Im thinking of purchasing a new electric hot water heater, and using electric during the summer, and the coal stoker to that tank for the winter. At 4.00 a gallon for oil, and 150 gallons to heat my hot water for the summer months, $ 600.00 for hot water is crazy. :shock:
John
Burning Blaschak

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coaledsweat
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Stoker Coal Boiler: Axeman Anderson 260M
Coal Size/Type: Pea
Location: Guilford, Connecticut

Post Sat. May. 24, 2008 9:39 am

JohnnyAsbury wrote:If heating DHW from a stoker that is located on the first floor, and the storage tank is in the basement, does the pressure relief valve absolutely need to be next to the stoker ? Looking at some diagrams, it shows that it is. I wouldnt want it going off destroying the hardwood floors upstairs if there was any excess pressure. Thoughts ? Ideas ? Thank you.
The boiler must have a PRV on it, you could plumb the drain to the basement or possibly outside. I would advise a shield if you do so. If the DHW is off a tankless coil they both must have their own PRV at different ratings more than likely.
Nothing is impossible for people who don't have to do it themselves.

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JohnnyAsbury
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Posts: 186
Joined: Fri. Apr. 11, 2008 3:03 pm
Stove/Furnace Make: Keystoker
Stove/Furnace Model: 90 - Direct vent
Location: Southern New Hampshire

Post Sat. May. 24, 2008 9:46 am

Any diagrams ? Thanks for any input.
John
Burning Blaschak

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