harman vf3000

harman vf3000

PostBy: StanT On: Mon Oct 20, 2008 10:53 am

Can someone tell me how many feed and return lines there is and the size and location? On harmans it says 8 sch 80 2 inch water pipes, but I cannot find a location. I am putting in 2 seperate feeds and returns. I would like to know if I can do them individual or must I tee off with 2 inch and reduce both sides of the tee?

Thanks again, Stan
StanT
 
Stove/Furnace Make: Leisureline
Stove/Furnace Model: econo1

Re: harman vf3000

PostBy: LsFarm On: Mon Oct 20, 2008 10:58 am

You really need to see a boiler. To try to figure out your plumbing from written descriptions would be like buying a mail-order bride... highly unlikely to work.

Greg L

Maybe, just maybe someone took lots of photos when they installed their Harman boiler.. coalkirk ??

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

Re: harman vf3000

PostBy: coalkirk On: Mon Oct 20, 2008 11:29 am

Stan,
There are 8 heat exchanger tubes. The supply and returns are single 1 1/4" taps. You can always T off of them. That's what I did although just for future use.
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coalkirk
 
Stoker Coal Boiler: Harman VF3000
Coal Size/Type: antrhcite/rice coal

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Re: harman vf3000

PostBy: syncmaster On: Mon Oct 20, 2008 6:30 pm

here are some more pictures to help with your install.
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1-1/4" outlet to air trap/ expansion tank tee to 2- 1" lines to circulators
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syncmaster
 
Stoker Coal Boiler: harmanVF3000 Coal/oil option
Coal Size/Type: Rice
Stove/Furnace Make: VF3000
Stove/Furnace Model: Harman VF3000

Re: harman vf3000

PostBy: StanT On: Wed Oct 22, 2008 3:53 pm

I must feed 2 houses, Is there only one place for feed and one for return?

Thanks, Stan
StanT
 
Stove/Furnace Make: Leisureline
Stove/Furnace Model: econo1

Re: harman vf3000

PostBy: coalmeister On: Wed Oct 22, 2008 3:56 pm

Yes, just tee into them
coalmeister
 
Stove/Furnace Make: Alaska 140 Furnace -sold
Stove/Furnace Model: Harmon VF3000 -sold

Re: harman vf3000

PostBy: syncmaster On: Wed Oct 22, 2008 4:38 pm

If you are heating 2 houses you should look into the keystoker K6 it has a higher BTU output.

the VF3000 is only good to heat 3000sqft
syncmaster
 
Stoker Coal Boiler: harmanVF3000 Coal/oil option
Coal Size/Type: Rice
Stove/Furnace Make: VF3000
Stove/Furnace Model: Harman VF3000

Re: harman vf3000

PostBy: StanT On: Wed Oct 22, 2008 9:07 pm

Kids bought a small double house, making it one, it had 2 seperate heating systems which we are combining, according to a couple of btu calculators the vf3000 is more than enough.

Thanks for the help, Stan
StanT
 
Stove/Furnace Make: Leisureline
Stove/Furnace Model: econo1

Re: harman vf3000

PostBy: coalkirk On: Thu Oct 23, 2008 9:09 am

Harman under rates allof their coal burning equipment. I'm heat 4,000 sq. ft. with a VF3000 and it's not working hard.
coalkirk
 
Stoker Coal Boiler: Harman VF3000
Coal Size/Type: antrhcite/rice coal

Re: harman vf3000

PostBy: Coalbrokdale On: Thu Oct 23, 2008 8:49 pm

I'm also heating just over 4000 Sq Feet w/ domestic hot water. Although it was the tail end of the heating season last year, It was not working hard to keep up. We'll see this year, I have noticed if my well water (cold) is not warmed in the hotwater heater slightly (vacation mode) it can drop the boiler temp from 180 to 150 after a few showers.
I calculated the following (just some notes I made):

Btu's to heat water.
1 lb coal to heat boiler from 140-180

Therm is 100,000 BTU's
7.7 lb's coal per therm

Takes 1 BTU to heat 1 lb 1 degree.
Boiler 50 gallons
140 to 180 is 40 degrees.
8 lb's in a gallon.
320 lb's in 50 gallons

320 btu's to heat boiler 1 degree.
40 degree's 12,800 btu's
13000 btu's in pound coal
1 lb coal to heat boiler from 140-180
Last edited by Coalbrokdale on Thu Oct 23, 2008 9:20 pm, edited 1 time in total.
Coalbrokdale
 
Stove/Furnace Make: Harman \ Coalbrookdale
Stove/Furnace Model: VF3000 \Darby

Re: harman vf3000

PostBy: Coalbrokdale On: Thu Oct 23, 2008 9:16 pm

If the boiler can burn 80 lb's in 24 hour's then thats a max of 3.3 lb's an hour. Or 43,000 btu's an hour.
$10\day or $300\month.

It can do more than twice that... and I only was burning about 40 lbs a day last year during the end of the season, right now I'm about 20-40 untill it gets dialed in. So in coldest months I'll have to see....
Coalbrokdale
 
Stove/Furnace Make: Harman \ Coalbrookdale
Stove/Furnace Model: VF3000 \Darby

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