Justed got a Harman III.
Want to use the 21T hot water coil. http://www.hilkoil.com/product.htm
Have a 200btu oil boiler with 80gal phase III indirect water heater, three zones and six people in Conn..
I'm gonna pipe the water to the boiler with a three speed cicr.
No BTU rating on the 21T coil. Wondering if 1 is too little or 2 is too much.
Also if anyone is running Harman III which size coal they like best.
Many Thxs Sam
1 or 2 Coils in Harman III
- Cap
- Member
- Posts: 1603
- Joined: Fri. Dec. 02, 2005 10:36 pm
- Location: Lehigh Twp, PA
- Hand Fed Coal Stove: Harman SF 250, domestic hot water loop, heat accumulator
- Coal Size/Type: Nut and Stove
- Other Heating: Heat Pumps
Nut coal works best with that shaker system. You could even use stove coal. I am not a big fan of pea coal but your Mark III could use pea too.
I'd go with the biggest coil or most coil I could fit. The single U shaped coil may not be enough, speaking of which, I have a new unused U-shape coil, SS 1" M NPT ends I'd part with if anyone is interested.
I'd go with the biggest coil or most coil I could fit. The single U shaped coil may not be enough, speaking of which, I have a new unused U-shape coil, SS 1" M NPT ends I'd part with if anyone is interested.
Thxs Cap for the advise.
Read some posts today on how the coils pitted bad for smitty. gonna have to passivate them with naval jelly before install and stop any condensation. wonder if I have them chrome plated first?
Still havent setup the 6"flue. wondering about masonry now?
Read some posts today on how the coils pitted bad for smitty. gonna have to passivate them with naval jelly before install and stop any condensation. wonder if I have them chrome plated first?
Still havent setup the 6"flue. wondering about masonry now?
- SMITTY
- Member
- Posts: 12525
- Joined: Sun. Dec. 11, 2005 12:43 pm
- Location: West-Central Mass
- Stoker Coal Boiler: EFM 520 Highboy
- Coal Size/Type: Rice / Blaschak anthracite
- Other Heating: Oil fired Burnham boiler
Steer clear of Hilkoil - there's another company out there with MUCH BETTER ethics & products. The name escapes me at the moment but I'm sure you'll find it in the links below somewhere ...
Don't say I didn't warn you ... and be sure to click on the link to the other thread within this one: Interesting Info for Those Looking to Purchase Hilkoil Coils
Don't say I didn't warn you ... and be sure to click on the link to the other thread within this one: Interesting Info for Those Looking to Purchase Hilkoil Coils
- EarthWindandFire
- Member
- Posts: 1594
- Joined: Sat. Dec. 18, 2010 12:02 pm
- Location: Connecticut
- Hot Air Coal Stoker Furnace: Leisure Line Lil' Heater.
- Other Heating: Oil Furnace and Kerosene Heaters.
Hi Bootstrap,
Yes, you could make a coil out of iron pipe. The water jacket in my Hitzer 75 is made out of black pipe and has little to no rust at all on it after 30 years. In fact, maybe iron pipe is better, due to wall thickness, than stainless?
You can find pictures of my stoves water jacket under the title Hitzer boiler.
Yes, you could make a coil out of iron pipe. The water jacket in my Hitzer 75 is made out of black pipe and has little to no rust at all on it after 30 years. In fact, maybe iron pipe is better, due to wall thickness, than stainless?
You can find pictures of my stoves water jacket under the title Hitzer boiler.
- Cap
- Member
- Posts: 1603
- Joined: Fri. Dec. 02, 2005 10:36 pm
- Location: Lehigh Twp, PA
- Hand Fed Coal Stove: Harman SF 250, domestic hot water loop, heat accumulator
- Coal Size/Type: Nut and Stove
- Other Heating: Heat Pumps
I like the sch 40 ( or is it sch 10 ) pipe manifold, but why use petroleum jelly? I'd use good quality neverseize.
Buy 316 if you can find it.
Buy 316 if you can find it.