Dec 3, 2009 #1 jvithayapun Mechanical Sep 17, 2009 22 Does anyone know where a specification for these systems can be found?
Dec 3, 2009 #2 GMcD Mechanical Dec 20, 2004 399 Call your local Viessmann or Caleffi representative. You'll also have to decide whether you are looking for a drain-back system, or a closed system, as well as flat panels or vacuum tubes. Upvote 0 Downvote
Call your local Viessmann or Caleffi representative. You'll also have to decide whether you are looking for a drain-back system, or a closed system, as well as flat panels or vacuum tubes.
