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[Scott7m]

I'll also say in regards to another question low, medium, or high.  We all dont have the same pumps or same systems, we have to remember that there are hundreds of pump choices and no two installs are the same. 

[Drivebymashing]

162 on heater
102 ish out of vent in house
3 speed pump on high

[horse62049]

checked all speeds of water pump and fan blower speed today for me seems high water speed high fan speed use to run it on medium and medium my results. now ever budys will be totally different u just have to try it and see but by me changing settings seemed to burn a little less wood temp at register went up and it took around seven minutes off how long the furnace ran. now that being said different  wood could change burn time register heat like scott said is all different but what i think shows it is heating better is the time it took off running time i know weather wind and cold makes a difference. but its been close temps and changed that much  i would think that is better friend has same set up he gets more out of his on medium and low fan. like scott said every single one will be totally different just have to mess with them and see what makes you smile. or like my brother in law said dont know what it is dont care thats all i know im warm and im not buying propane. have a good weekend all

[victor6deep]

Just from what I have messed with I think when the pump is on low the water returns a lot cooler versus on high. More efficient on high because it keeps the whole tank a balanced heat due to more intense flow which produces better even mixing. On low the fan runs longer on furnace and therefore when returning to the stove it takes a lot longer to balance the stove water tank to a average temp.

[Scott7m]

Just from what I have messed with I think when the pump is on low the water returns a lot cooler versus on high. More efficient on high because it keeps the whole tank a balanced heat due to more intense flow which produces better even mixing. On low the fan runs longer on furnace and therefore when returning to the stove it takes a lot longer to balance the stove water tank to a average temp.

It is possible yes for the higher return speed to increase circulation, so another benefit.

Most folks assume everything is fine simply because the house is warm.  With proper care and boiler treatment these things could last a long long time

[Scott7m]

I agree it needs to be looked at...  If my 3 wrap don't melt snow your thermopex shouldn't either

My distributor for foam filled insulated pipe loves logstor, even though he carries both brands.  I am tempted to try it next year, I've the test results for years but just never used it at my own home

[victor6deep]

Scott I used the double tiled triple wrap and buried about 5ft deep since I am in high and dry ground but have rocky soil which is why I went with the 4 inch tile inside of a 5 inch tile for extra protection. I myself don't have a melt line but also know in the future I may replace it with logstor or thermopex just because. Im sure there is a difference but my stove is only 65ft from my house and the wife said NO on the better pex.

[victor6deep]

I would also think on a high pump setting you would get more radiant heat off your exposed pex in the basement and also any sediment would get cleared out of your heat exchangers and endup in the bottom of the wood boiler to where you can drain out that nasty junk.

[Fourced]

So if you temp delta is too low and you wanted to slow down the flow on a single speed pump would you partially close the inlet or the outlet?

This is temp probes on the pex at the boiler wrapped with insulation, on this loop is a 20x20 HX and 135 feet of 3 wrap pex. I have swapped the probes and the readings are the same so it is not an off reading.
Bottom is out top is in.

[Scott7m]

You measure your delta t with everything running, heat on and hot water

[Fourced]

You measure your delta t with everything running, heat on and hot water

I let the furnace run for 30 min and rechecked with it still running. 10* difference. I do not have hot water hooked up yet.