*NEW*400 Hot Water unit

[Jeremy]

I figured I would give you guys a chance to see the new SAR boiler first! It has been given a face lift. We think this will be the most efficent solid fuel boiler on the market. This one is the 400,000 BTU model. It has the same controls on it that our Rocket units have. Well again enjoy this bad little machine haha






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S.A.R. Biomass Energy Systems LLC
http://www.sarbiomass.com/

[sting]

only one burn pot Jeremy???

It must be a big one!

How many gallons will be in the vessel?
_________________
When you turn your boiler on -- Does it return the favor?
I am sorry - My responses are limited - You must ask the right question!

[Jeremy]

18x18 - 11 inches deep for the burn pot

As far as how much the unit i don't know much water it holds yet. I will find that out hopefully in the next few days.
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S.A.R. Biomass Energy Systems LLC
http://www.sarbiomass.com/

[ShovelEd]

Wow! thats a nice looking unit Jeremy!!
I think it needs to go to stings house for some extensive field testing and to see if it interfaces with his trellis ok

[sting]

I am at my nice LCD today and the pictures are much clearer

is this a single or double pass heat exchanger?

I see the pipe in the back with the probe -- assume that's something to sample exhaust temp and play with the ecm for best burn -- but what has me puzzled as to the pass sequence --- if we punch the fire tubes-- where will the soot land -- I don't see a clean out in the back?

Have you twisted some turbulators in those horizontal tubes yet for better exchange? (If single pass -- will they be longer and shorter as they are placed in the higher vessel tubes?

You have all that wonderful access to the tubes -- please consider rolling the fire tubes water tight into the vessel tube manifold vs welding them in the holes -- it will be quicker for your shop and easier to be field repairable in the future.

just random thoughts -- looks too nice to burn corn in
_________________
When you turn your boiler on -- Does it return the favor?
I am sorry - My responses are limited - You must ask the right question!

[Jeremy]

[lowcostheat]

Sting, is there a minimum recommended temp for a solid fuel boiler to run to lessen the chance of creosote formation?
_________________
Using corn for low cost heat!!
Dealer for FPI & Paromax DellPoint, Ecoteck, & Lennox Stoves, PSG wood and pellet furnaces. Traeger Pellet and Corn furnaces. Fahrenheit furnace.
FPI Sim-Tech training, 2006, 2007

[sting]

IF Jeremy doesn't mind Ill offer

Operate above 140 degrees - the accepted minimum operating temperature of a condensing type boiler

Never let the return water circulate into the bottom of the boiler if its below 110 for more than a minute. -- How the heck do we do that you ask??? If the boiler isn't picking up supply out temps and the return water is that cold, It won't be long before the supply water drops below 140 and boiler protection should launch - but if your balancing a new system and return water is this cold,,,, its time to rethink your controls -- YOUR WRECKING YOUR NEW BOILER....

Boiler protection is 1) stopping the pumping thru the boiler or 2) bypassing the boiler until the boiler supply temperature again reaches 155. If supply temperature drops again- the protection cycle simply repeats. If the boiler protection cycle repeats often - its likely that the GPM thru the boiler is above the BTU capacity of the boiler, and should be reduced by manual choking or a ODR compensating GPM variable pump and logic control as some TACO systems do!

--- but that’s another story in the naked boiler room, as I smell (in the far reaches of my quack science) the load is outmatching the boiler! Under sized boilers are not a bad thing - they run more time at peek efficiency vs. over sized boilers that idle consuming fuel needlessly - vs. a correctly sized boiler, but our size options are not always as available as the traditions fuel boilers that are offered in 20,000 BTU increments.

It’s all about control! And I fear I have overstepped my welcome -- again



so--- That written.... Do what the boiler manufacturer says when it comes to running a specific wet energy producing thingy.
_________________
When you turn your boiler on -- Does it return the favor?
I am sorry - My responses are limited - You must ask the right question!

[lowcostheat]

Thanks, sting, I appreciate the quick answer and explanation.
I am sure it is buried in a book chapter somewhere but I like the 1 paragraph laymans version.
_________________
Using corn for low cost heat!!
Dealer for FPI & Paromax DellPoint, Ecoteck, & Lennox Stoves, PSG wood and pellet furnaces. Traeger Pellet and Corn furnaces. Fahrenheit furnace.
FPI Sim-Tech training, 2006, 2007

[Jeremy]

Sting is you are more than welcome to answer any question you feel like answering on here ........... To be honest my knowledge on the boilers is very limited the first time I ran one was accually Monday for some testing and programing of the controls...... We were keeping it a constant 180 degree water, after we tested the highs and lows corn and wood pellets. I love how quiet they are! didnt even know it was running I am use to a a fan blowing off the heat.......... I think Randy wants to heat the new SAR building with a boiler now...... or at least the showroom part of it.
_________________
S.A.R. Biomass Energy Systems LLC
http://www.sarbiomass.com/

[Jeremy]

p.s. we have a saftey setting 120 - 140 min water temp so it is impossible to get below 120 unless you run out of fuel which we did at one point today haha
_________________
S.A.R. Biomass Energy Systems LLC
http://www.sarbiomass.com/

[sting]

that's great Jeremy

you will love the comfort and economy of radiant heat from a wet system in your new building
_________________
When you turn your boiler on -- Does it return the favor?
I am sorry - My responses are limited - You must ask the right question!

[kan_burn]

Sting, are you talking about using something like this

http://www.krais.com/index.php?main=list.php&menu=products&lid=Boiler%20Tube%20Expanders

to roll the fire tubes. They have some videos of their equipment in action.
http://www.krais.com/index.php?wid=vgal

Looks like a little investment in equipment, but looks a lot faster than welding.

[sting]

Mine is in a bit less than "pristine" condition -- but yes


_________________
When you turn your boiler on -- Does it return the favor?
I am sorry - My responses are limited - You must ask the right question!

[kan_burn]

Do you have to use an expander that will put a flair on it also in order to make it water tight?
Do they make a seperate tool to make the flair? Or is it more comon for the expander and flair tool to be all in one, like the one I had shown?