Blog: Ask Caleffi Podcast

What drives the adoption of solar hot water systems?  Are there specific factors that signal the beginning or end of a spike in system installations?  Which applications are always a good fit?  What qualifications do you need to work on these systems?  How do you evaluate a site to know if the location is good for solar? In this...

Do I leave the air vent cap open or close it?  Do you leave the AutoFill open or closed?  Where should you put the expansion tank?  Do you pump into the boiler or pump out of it?  Hydro separator or closely spaced tees?  Where should you put the air separator?      In this episode, the guys have put together a few...

DHW recirculation systems can cause a lot of headaches, if not operating properly.  Quick troubleshooting is essential, especially in the multi-family sector.  How do you know what needs to be fixed?  What questions do you need to ask occupants and building managers?  Are all shower valves the same? Do you need x-ray vision?   In...

How do you fill a radiant system with the least amount of headache, in order to get the air out?  Should you flush through the boiler side?  What takes the least amount of time? When is a fill cart helpful?  Is street pressure water enough to properly purge? In this episode, the guys share their field experience filling manifolds. ...