DS or EFM hand fired

 
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ASea
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Post by ASea » Thu. Dec. 14, 2017 10:15 am

I was wondering if anyone in Central Mass has either one of these units?

What is your experience with them?

Which did you choose and why?

I'd like to stick with an American made product from a manufacturer still in business.

I'd only like to hear from people who own them or have owned them.


Thank You


 
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Post by hotblast1357 » Thu. Dec. 14, 2017 12:31 pm

Why hand fired only?

 
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ASea
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Post by ASea » Thu. Dec. 14, 2017 12:40 pm

hotblast1357 wrote:
Thu. Dec. 14, 2017 12:31 pm
Why hand fired only?
Price seems to be more reasonable. I have a hand fired stove now so tending isn't an issue. Also they don't need to be wired up. This would be installed in series with an oil boiler already there.

 
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Post by hotblast1357 » Thu. Dec. 14, 2017 1:18 pm

ASea wrote:
Thu. Dec. 14, 2017 12:40 pm
Also they don't need to be wired up. This would be installed in series with an oil boiler already there.


Actually any type of boiler needs to be wired up as they are controlled by aquastats.

Just keep in the back of your mind, tend to it twice a day, or possibly once a week!

 
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Post by jremington » Thu. Dec. 14, 2017 9:29 pm

The DS boiler doesn't need an Aquastat. We set the water temperature using a Sampson Regulator and run the Circulator continuously.

 
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ASea
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Post by ASea » Thu. Dec. 14, 2017 9:34 pm

jremington wrote:
Thu. Dec. 14, 2017 9:29 pm
The DS boiler doesn't need an Aquastat. We set the water temperature using a Sampson Regulator and run the Circulator continuously.
That's interesting to know.

How would I know if I was set up for natural circulation? In other words if I lost power?

 
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Post by jremington » Thu. Dec. 14, 2017 10:04 pm

It would be best to run a bypass line around your existing boiler. I also ran a bypass around the pump on the return end. In a gravity fed system such as the Amish run its necessary to start out with a 2 inch line and reduce down when you reach the point where you are going to go horizontal with your radiators. You should keep as much restriction away from the flow as possible. Hot water is always going to move regardless but the easier it can flow the better the flow.


 
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Post by hotblast1357 » Fri. Dec. 15, 2017 4:55 am

You have to have a dump zone which is going to be an aquastat.

 
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Post by BunkerdCaddis » Fri. Dec. 15, 2017 9:46 am

hotblast1357 wrote:
Fri. Dec. 15, 2017 4:55 am
You have to have a dump zone which is going to be an aquastat.
In a gravity flow system (and a constant flow system too)...wouldn't the entire system be the dump zone? :annoyed: With the caveat that the boiler wasn't drastically over-sized to begin with.

 
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Post by hotblast1357 » Fri. Dec. 15, 2017 9:54 am

No it wouldn’t, because you can still have overshoots. Strong’s draft from sudden wind, improper settings by the operator, sudden warm days.

 
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Post by jremington » Fri. Dec. 15, 2017 2:23 pm

BunkerdCaddis wrote:
Fri. Dec. 15, 2017 9:46 am
In a gravity flow system (and a constant flow system too)...wouldn't the entire system be the dump zone? :annoyed: With the caveat that the boiler wasn't drastically over-sized to begin with.
. In a Gravity system the system is your dump zone so to speak. Without a pump you can't move water to another location to cool the water.

 
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Post by hotblast1357 » Fri. Dec. 15, 2017 2:44 pm

Correct a dump isn’t needed in a gravity flow, I’d like to see someone build a gravity flow system though!

 
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Post by jremington » Fri. Dec. 15, 2017 5:12 pm

I had the opportunity the last couple summers to see a few of them. Ben at DS is very good with them.

 
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Coal Size/Type: Sherman Anthracite Nut/Stove from C&T Coal
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Post by ASea » Fri. Dec. 15, 2017 6:20 pm

I doubt mine is but it certainly makes sense to set it up like that

 
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Post by BunkerdCaddis » Fri. Dec. 15, 2017 9:27 pm

hotblast1357 wrote:
Fri. Dec. 15, 2017 2:44 pm
Correct a dump isn’t needed in a gravity flow, I’d like to see someone build a gravity flow system though!
In the farm house we own, it originally had a gravity flow system. In my complete ignorance I got rid of a coal boiler (a Burnham 5 section :( converted to oil) to put in an OWB. The thermostat only controlled the burner and it was not efficient. Knowing what I do now I regret not converting it back to coal, but it worked entirely on gravity flow.


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