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My DIY installed Vaillant AroTherm Plus is now LIVE

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Comments

  • #92
    championc
    Registered Users, Registered Users 2 Posts: 6,567 ✭✭✭championc


    For those ever considering a heatpump, turn down your gas / oil boiler flow temp to maybe 40 deg, and see how well your rooms are heated, or kept warm.

    Heat pumps run at much faster flow rates, so only have 1/2" pipes on links from your backbone to individual rads



  • #93
    micks_address
    Registered Users, Registered Users 2 Posts: 9,501 ✭✭✭micks_address


    https://www.boards.ie/discussion/comment/124018313#Comment_124018313

    i ran my house through heatpunk and it is recommending 7kw at 45 degrees flow temp at -3 i probably havent entered the rads very accurately though.. actually i forgot to change the upstairs internal walls to having a heated space so that brought it down to 6.3kw required. I didnt come across the section to change airflow?

    Post edited by micks_address on


  • #94
    micks_address
    Registered Users, Registered Users 2 Posts: 9,501 ✭✭✭micks_address


    found the air changes.. under custom room.. with all set to .75 now heatloss is coming in at 5.579kw

    so im thinking a 7kw heat pump would be the way to go? maybe 6.. what i dont want us to be underpowered where its working to hard or overpowered either.. heatpunk recommended the midea m thermal artic 8kw which is about 129% overszied 4.29 scop at 45 c

    Post edited by micks_address on


  • #95
    championc
    Registered Users, Registered Users 2 Posts: 6,567 ✭✭✭championc


    When I asked Midsummer recently for an AroTherm for a friend,they said that they were going to get them into Ireland.

    I only say that since the 5kW unit can do over 7kW.

    You'd need to look at other units specs to see what they can actually produce, but I wouldn't be keen on oversizing at all, as you'll have cycling in milder weather.

    If you look at the link to my data, you will see that while I am running continuously, I am very much running on unit minimum now a lot of the time during the mid afternoon.

    My thoughts a year ago was, if I need to use a fan heater to top up a room 10 days of the year, then so be it. We didn't need to, as it generated enough heat



  • #96
    micks_address
    Registered Users, Registered Users 2 Posts: 9,501 ✭✭✭micks_address


    https://www.boards.ie/discussion/comment/124026420#Comment_124026420

    So you would suggest going for a 5kw aerotherm?



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