Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

air to water heat pump

  • 11-06-2010 7:51pm
    #1
    moan 77
    Registered Users, Registered Users 2 Posts: 180 ✭✭


    Hi All,

    Look's like i will be installing an air to water heat pump, one question i have is i will also have a heat recovery unit could put the extract from the heat recovery unit to the back of the air to water heat pump so the unit will not have to work as hard in looking for heat in any type of weather, also any ideas on putting the extract of the clothes dryer into the same place. Good or bad idea.

    Should the extract from the cooker hood go directly outside.

    Any help or ideas would be great, many thanks to one and all.


Comments

  • #2
    AdamAntsy
    Registered Users, Registered Users 2 Posts: 68 ✭✭AdamAntsy


    Thats an interesting thought - am planning the same 2 systems although the pump will be at ground level whereas the HRV exhaust will be at roof level. But assuming it makes a difference it might encourage me to change that.


  • #3
    heinbloed
    Registered Users, Registered Users 2 Posts: 1,632 ✭✭✭heinbloed


    You should never connect dirty air sources like kitchen hoods or clothe dryers to a ventilation system feeding a heat pump. Or feeding any heat exchanger.

    These things (kitchen hood or clothe dryer) have to run independantly.

    In standard households the energy contained in the room-extracted air will by far not cover the demand for DHW.

    Unless you create a hurricane blowing through the house or most of the thermal energy for the DHW will be direct electric resistance heating (or some other source).

    Get an energy advisor.

    A simple heat exchanger for the ventilation system might be more economical. But again: only clean air is to be fed into these ventilation systems.

    Air to water heat pumps are the least energy efficient heat pumps, esp. when creating DHW ( high water temperatures). That's proven in numerous field tests.

    Check the HP thread in this forum for further advise and links.


Advertisement