Outdoor Wood Furnace Info

All-Purpose OWF Discussions => General Outdoor Furnace Discussion => Topic started by: birchbark on February 28, 2013, 10:07:04 PM

Title: what size of underground pipe to go with
Post by: birchbark on February 28, 2013, 10:07:04 PM

I will be replacing my piping from the house to the owb this summer and I have my mind made up on using Thermopex, I am just not sure if I should go with 1" or 1.25".  I am heating right around 4800 sq feet, older home, not great insulation.  My current setup is 2 supply and 2 returns 3/4" from the boiler that are not insulated.  I can heat my house fine with it, but I have a heck of a temp drop from the boiler to the house.  I got a quote of $12 a foot for 1" and $16 a foot for 1.25", I need 100 feet, so a difference of $400, just not sure if it is required or worth it.  If I want the 1.25", the dealer I am getting it from, suggests getting it ordered as sometimes it can take a long time to come in.

Title: Re: what size of underground pipe to go with
Post by: Scott7m on February 28, 2013, 10:24:15 PM

I'd hit the middle and go with logstor, it's in between the 1" thermopex and the 1 1/4" thermopex.

My distributor for logstor and thermopex is a very large central boiler dealer, he reccomends logstor and installs it on over 90% of his installations...   It has a couple features that thermopex doesn't, for $1/ft more in most cases.   

If you are interested in that I could help you out, ships straight to your door really quick

Title: Re: what size of underground pipe to go with
Post by: Scott7m on February 28, 2013, 10:26:01 PM

Logstor is a little over an inch inside, thermopex 1" is actually 7/8" inside.  There 1 1/4" is only a smidge bigger than the logstor 1"

Title: Re: what size of underground pipe to go with
Post by: RSI on March 01, 2013, 07:57:24 AM

Probably just screw the fittings for each together to make a coupler. That is what I do when switching over from pex to pex-al-pex.

Title: Re: what size of underground pipe to go with
Post by: Scott7m on March 01, 2013, 09:19:13 AM

Quote from: RSI on March 01, 2013, 07:57:24 AM

Probably just screw the fittings for each together to make a coupler. That is what I do when switching over from pex to pex-al-pex.

Yep...    Think pex al pex compression fittings will work on logstor pex

Title: Re: what size of underground pipe to go with
Post by: RSI on March 04, 2013, 05:15:07 PM

It is just another type of pipe that some people use instead of pex. It is the metric size like the Logstor pex but sold as 1", but larger than regular pex.

Title: Re: what size of underground pipe to go with
Post by: MattyNH on March 04, 2013, 07:23:46 PM

 I use pex-al-pex piping..Its a true 1 inch opening..

Title: Re: what size of underground pipe to go with
Post by: RSI on March 04, 2013, 07:43:39 PM

The pex that Scott Suggested in the exact same inside diameter as pex-al-pex.
As as I know, no one makes the type of insulated pipe he wants with pex-al-pex.