Click here to Find a Contractor in your area.
Welcome! Here are the website rules, as well as some tips for using this forum.

If you've found help here, check back in to let us know how everything worked out.
It's a great way to thank those who helped you.
Need to contact us? Visit

Demand Recirc Options

Are there any strong opinions out there regarding the use of a D'Mand (ACT Metlund) recirc pump system vs a Taco system on a really big house? We need to use several motion sensors for activation.


  • JackJack Member Posts: 1,044
    They are

    The same. The technology comes Metlund, using a Taco pump. Taco private labels the technology, buys components from Metlund and assembles/sells them as Tacos. Uponor also private labels the Metlund. Excellent system, btw. I'd suggest that if you have design questions that you go directly to Metlund.
  • Kevin_in_Denver_2Kevin_in_Denver_2 Member Posts: 588
    Don't Like Motion Sensors

    I think controlling these recirc pumps with motion detectors is wasteful. Why use up several gallons of hot water just because you want to brush your teeth?

    Use the doorbell type switches, you get used to them quickly.
    Superinsulated Passive solar house, Buderus in floor backup heat by Mark Eatherton, 3KW grid-tied PV system, various solar thermal experiments
This discussion has been closed.


It looks like you're new here. If you want to get involved, click one of these buttons!