Install the app
How to install the app on iOS

Follow along with the video below to see how to install our site as a web app on your home screen.

Note: This feature may not be available in some browsers.

Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws

Dec 27, 2022
1
0
1
MN
Member Type
DIY or Homeowner
Thanks for having me. New to radiant system as I’m from a forced air background. House has a gas boiler that works well thus far. Examining the setup I see two pumps, the grey unit appears to be the active pump when it kicks in. I’m not sure the role of the red unit.

My goal is to replace the pump with an super energy efficient model. But I’ll most likely do this come spring. Any help would be greatly appreciated.
2CED75E7-344C-4516-8A94-B13A5974533A.jpeg


BB9E1716-D84B-4EEA-9D37-4CA5DFA23480.jpeg

4A5BBB54-A853-4F2D-99F3-98FD07D42C5A.jpeg

3A90C9F2-2DF7-48CF-9C72-524C5606EFC8.jpeg
 

Official Sponsors of Plumbers Talk

Similar plumbing topics

We recommend City Plumbing Supplies, BES, and Plumbing Superstore for all plumbing supplies.