My storage tank drops from 185 °F to 120 °F in 14 hrs.
jebatty said:My storage tank drops from 185 °F to 120 °F in 14 hrs.
That drop in storage temp represents 269,750 btu/14 = 19,268 btuh. If your boiler and storage are in the heated space, then 269,750 btu = 44.6 lbs of wood at 20% MC and 400F flue temp (6050 btu/lb), or a little over 3 lbs of wood per hour. If outside the heated space, you probably could downgrade that to 55.7 lbs of wood, same parameters, or 4 lbs of wood per hour (80% assumed efficiency in the boiler transferring heat to storage and/or heat demand).
huffdawg said:Ya i'm still on one storage tank . I will get the other one online when I get back home in 8 days. My wife now has more experiece with the boiler than I do . I'm texting her all the time asking her for storage temps ,primary temps ,and DHW temps.LOL .She loads the boiler with wood when she gets home for lunch. Puts the 4 way valve on charging storage then when she gets home after work lights another fire and when it burns out puts the 4 way to the recovery position. to supply loads from storage , and then does the same the next day. The funny thing is she doesn't have any idea what she is actually doing, but she getting it done so I don't give her a hard time.
My iphone is kind of controlling her ,kind of like a remote control. :lol:
Definately a learning curb. But I like it though.
How many square feet do you heat with your 60 and how much wood are you burning ,must be cold there now.
Huff
NATE379 said:About 765,000 if my math is right.
1 BTU = amount of heat needed to make 1 lb of water 1* warmer.
8.3lbsx 500galx185F.
huskers said:Huff you need to automate your 4 way. I finally found a controller on EBay for mine. Think I'm just going to wire it with a relay to charge when boiler circulated is on and discharge when boiler circulator is off and an aquastat on my primary is below like 130. I still haven't plumed my storage but have 5 days off and it is time. Thinking of just 1 tank for this winter since I would really like to mount them vertical next year to save shop space. 19,000 btu per he doesn't seem that bad.
huffdawg said:huskers said:Huff you need to automate your 4 way. I finally found a controller on EBay for mine. Think I'm just going to wire it with a relay to charge when boiler circulated is on and discharge when boiler circulator is off and an aquastat on my primary is below like 130. I still haven't plumed my storage but have 5 days off and it is time. Thinking of just 1 tank for this winter since I would really like to mount them vertical next year to save shop space. 19,000 btu per he doesn't seem that bad.
I still have to tie my boiler into my house which is about 2800² ft. the heat loss calculation on it is 20,000 btu per hr.
What make is your 4 way Huskers mine is an ESBE. 1-1/4" ,how much did you pay for your valve actuator?
Today the wife said the boiler burnt 20 pieces of wood in four hours. full fire box.
Is a four hour burn time with Eko 40 comparable to yours Stee and Huskers>
And where do you guys have your fan speed, primaries and secondaries set at?
jebatty said:What advantage do you see with a 4-way for zones/charging vs a hydraulic separator tank charging arrangement? I use a modified hydraulic separator, have low temp radiant, and there never is a real immediate need for very high temp water. But if there was, high temp to the tank arrives very quickly and is available to meet demand.
At Deep Portage, which needs 140F+ water, and often into the 150-160F range, a 4000 gal tank is used as a hydraulic separator. Again, hot water is delivered to the tank and available quickly to meet heat demand calls.
DP also uses a Tekmar controller and proportional 3-way valve for return water protection on its Wood Gun E500.
stee6043 said:NATE379 said:I personally can't heat with water below 140 degrees! I do wish I had radiant or panel rads...
That Esbe looks like the new version of mine. It's 24vac too which will be nice. Can't beat that price either. I might read up to see if I can use a 10x small transformer to get the 240vac from the 24vac I will already have. I have a primary loop not a hydraulic separator. 4 way either charges tank or discharges from it.huffdawg said:Looks like your heating a lot more square feet than I am and in a colder region . Right now it is -10 °C which is usually about as cold as it gets here. and most of time the cold spells dont last for more than a couple weeks.
they sold the valve actuator for the Esbe at the place where I bought it, it was aroud $300. so I will see if I can find a deal like yours. Do you think this one would work.
http://www.sdsmarket.com/Esbe_ARA663_3_Point_Floating_Motor_Actuator_p/ara663.htm
I will be able to get a more acurate figure on houses btu consumption after I get the heat goin there . then calculating btu loss from the storage tanks.
cheers
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