To get email notification when someone adds to a thread you're following, click on the star in the thread's header and it will turn yellow; click again to turn it off. To edit your profile, click on the gear.
The Wall has a powerful search engine that will go all the way back to 2002. Use "quotation marks" around multiple-word searches. RIGHT-CLICK on the results and choose Open Link In New Window so you'll be able to get back to your results. Happy searching!
In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Need to contact us? Visit

Flatp plate heat exchangers

TimTim Member Posts: 37
Does anyone have comments on small flat plate heat exchangers for domestic hot water/radiant floor and solar heat transfer.

Pretty vague question, just want to get some basic comments




  • IronmanIronman Member Posts: 3,127
    We Use Them Regularly

    The only real issue that we normally experience is scaling when used on an open loop. In that case, we install isolation/purge valves like you would with a tankless water heater so it can be de-scaled.
    Bob Boan

    You can choose to do what you want, but you cannot choose the consequences.
  • tim smithtim smith Member Posts: 2,216
    Re: flat plates

    I use them quite often for commercial dhw production. We use the GEA heat exchangers and oversize them for lower temp boiler water to keep in condensing mode. Try to size boiler temp to dhw temp as close as is feasible for this.
  • james patrickjames patrick Member Posts: 70
    great online simulation

    My flat plate heat exchanger works great for DHW
This discussion has been closed.


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