Insulated Underground Line - Outdoor Wood Boiler Tubing

We sell three types of underground line

3 Wrap: Our most economical option. Two 1" pex lines, a red and a blue, surrounded by three wraps of foil backed bubble wrap insulation inside a 4" tile-like corrugated line.

5 Wrap: Our most popular option. Two 1" pex lines, a red and a blue, surrounded by five wraps of foil backed bubble wrap insulation inside a 5" tile-like corrugated line. 

Solid Core Foam Line: Our most economical insulated line. This line consists of a 4.5" poly line containing two 1" pex lines surrounded by solid core, water proof closed cell foam. 

If you need a length not listed below, please call us so we can assist you with an exact cut length.

Three Wrap Insulated Line for Outdoor Wood Furnaces

Five Wrap Insulated Underground Line for Outdoor Boilers