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[Wrudoing]

Chimneys partially plugged

[Wood Nutt]

Heat550, the specs for HDPE single wall corrugated pipe says its operating temp is up to 100-deg C or 212-deg F and it can take short term temps up to 120 C or 248F.  How long ago did you install that pipe and how long did you use it?  That is what my lines run thru and what you found kind of makes me nervous.  I also don't run my stove that hot, 155 F range so maybe that will help.  As long as the outer pipe stay solid and doesn't let any water get inside, the temp at the outer part of that pipe should be several degrees less than the boiler temp water inside the inner lines, do you agree?

[heat550]

Heat550, the specs for HDPE single wall corrugated pipe says its operating temp is up to 100-deg C or 212-deg F and it can take short term temps up to 120 C or 248F.  How long ago did you install that pipe and how long did you use it?  That is what my lines run thru and what you found kind of makes me nervous.  I also don't run my stove that hot, 155 F range so maybe that will help.  As long as the outer pipe stay solid and doesn't let any water get inside, the temp at the outer part of that pipe should be several degrees less than the boiler temp water inside the inner lines, do you agree?

1996 I bought this corrugated pipe came in 2 thicknesses lighter and heavy I got the heavy ( will check tomorrow if i still have a piece or theirs a chuck of it still going though my cement blocks I could measure thickness .  )  It was installed for only one season . and we have heavy clay here what happened the foam we used took on water . stove took alot of wood that spring we dug it up . In the low spot where more water collected  black pipe had hair line cracks inside all the ribs and when you lifted it broke part and these cracks were also in the whole run and was full of water This was brand new full price pipe  feeding  pex al pex thru it wasn't all that much fun . stove was run at 180f  we never boiled it either . But we had to replace grates because they sagged about 2 inches in one spot . To test next spring go to lowest spot and see if theirs any water if you can. and your right 155f makes it better . My understanding at the time was the rating on the pipe was not including saturated in water at 180f it was air temperature is were I was mislead .  You know all the new stuff might be a lot better as they improve it as they go at the time in 1996 the dealers were as green as the buyers they have all come a longways sense then . So only worry if it takes to much wood .

Heat550

[Wood Nutt]

Thanks for the explanation.  I was going to check my temp drop at the stove, but its been so cold (low around 0 and highs upper teens) that either the furnace is running inside, or the boiler is running.  Even that cold, the stove burns 10-12 hours easily on a wood load, so I don't think its waterlogged.  I really don't have any way to check the low spot in the line either.  I am trying to remember if it drops much where it comes in the side wall of my basement.  But, I will keep an eye on this based on your experience.

I know what you mean about pulling pex al pex thru corrugated.  I wrapped mine with 6 wraps of the techfoil insulation and also put a 1/2 inch pex fill line in there (unused).  Was OK pulling the first 150 feet, but the last 75 feet was a bear!

[heat550]

Thanks for the explanation.  I was going to check my temp drop at the stove, but its been so cold (low around 0 and highs upper teens) that either the furnace is running inside, or the boiler is running.  Even that cold, the stove burns 10-12 hours easily on a wood load, so I don't think its waterlogged.  I really don't have any way to check the low spot in the line either.  I am trying to remember if it drops much where it comes in the side wall of my basement.  But, I will keep an eye on this based on your experience.

I know what you mean about pulling pex al pex thru corrugated.  I wrapped mine with 6 wraps of the techfoil insulation and also put a 1/2 inch pex fill line in there (unused).  Was OK pulling the first 150 feet, but the last 75 feet was a bear!

Yes its fine if your getting that long of burn.When ours got water on pipes I'm taking 4 hour burn at 20f so you don't have anything to worry about . Yes were getting a big cold snap last 2 nights -20f  All I'm burning is wet ash wood My load of oak isn't here yet. . At -20 f I'm only getting about 5-6 hours per stove load My ash is only at 18 inch's so its a bugger to get enough in there . But I have quite a load on the stove heatmor 200css 5500 sq feet 2 houses shop, garage. and yes furnace and electric heat just kicks in when I wake up and back to the stove I go  . oooo the joy of below 0f .. Couple weeks I will have my load of oak . 30 inch pieces split small will give back to my 10-12 hour burns . I miss them  . Just getting back in the winter swing .

heat550

[Wood Nutt]

Great, thanks for the info.  I switch to hedge when it gets this cold and the burn times I gave you were with that.  its good wood for this cold weather!  oak hackberry and elm mostly when its milder around here.

[ITO]

 I pulled 2 pex al pex 1" lines through my Insul seal 90 feet, flattened the front of the pipes and drilled a hole and wired a rope to that, pulled it in with a little dawn dish soap on the beginning of it, I can remember being surprised how easily it went through even with 2 90 degree bends and a 45. I can imagine that corrugated pipe would be totally different tho Wood Nutt.
 Heat you are having a Xmas delivery of a load of split 30" pieces of dry oak? Santa is being very nice to you!