We're aware that some users are experiencing technical issues which the team are working to resolve. See the Community Noticeboard for more info. Thank you for your patience.
📨 Have you signed up to the Forum's new Email Digest yet? Get a selection of trending threads sent straight to your inbox daily, weekly or monthly!

£7-£8k for Aircon system

Options
2456711

Comments

  • Swipe
    Swipe Posts: 5,613 Forumite
    Part of the Furniture 1,000 Posts Photogenic Name Dropper
    edited 22 May 2021 at 4:43PM
    I had a couple of Daikin air to air heat pumps installed about 12 years ago in my detached bungalow. I got some commercial local company to install them and never applied for planning permission or ever had any complaints from the neighbours. They do cooling but I've never used them for that purpose as I live in a bungalow that rarely gets above 23C apart from a couple of days a year.

    They work great in the shoulder seasons but mine do tend to struggle when it gets really cold due to defrost cycles kicking in. You'd probably need some back up heat source for the depths of winter unless you let them run all day then they are fine. I have a multifuel stove in the living room which I only light when it gets below freezing at night and then mostly on at weekends as I can't be bothered with the hassle.
  • danrv
    danrv Posts: 1,600 Forumite
    Seventh Anniversary 1,000 Posts Name Dropper
    edited 24 May 2021 at 3:53PM
    QrizB said:
    There is a regular on the Green and Ethical section of the forum who has a couple of air-to-air units; I think these operate independently.    
    @danrv I think R_R is referring to @Martyn1981 and @ASavvyBuyer both of whom have AAHPs, but smaller systems than the one you're looking at. They also have a thread here: https://forums.moneysavingexpert.com/discussion/4715287/discussion-ashp-air-air-with-solar-pv

    Have been having a read of the thread. Very helpful.
    Company haven’t got back with any system details yet. Definitely need to know.
    I think £7k is about right for a 6 way multi split Aircon system but way more than I’d like to spend.
  • Cardew
    Cardew Posts: 29,060 Forumite
    Part of the Furniture 10,000 Posts Name Dropper Rampant Recycler
    With a large unit do not ignore the potential noise problem as mentioned earlier in the thread.
  • matelodave
    matelodave Posts: 9,078 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Photogenic
    The changover between heating and cooling is accomplished by reversing the refrigerant flow within the outside unit and therby reversing the role of the evaporator and condensor within the internal and external units depending on whether the system is heating or cooling

    have a shufti here to get an idea of how it does it https://youtu.be/QykwWs3L1W8
    Never under estimate the power of stupid people in large numbers
  • danrv
    danrv Posts: 1,600 Forumite
    Seventh Anniversary 1,000 Posts Name Dropper
    edited 24 May 2021 at 5:54PM
    Swipe said:
    You'd probably need some back up heat source for the depths of winter unless you let them run all day then they are fine. 
    Ok thanks. That’s just when you want the heat. 
    Hopefully no need for back up with an expensive install such as this. Just a case I guess of getting used to the way heat pumps work.

    Also was wondering about the high positioning of the indoor units.
    Considering that I’m after a heating system, it would make sense for the units to be at floor level like radiators or storage heaters.
    Looks like these type are available.
  • shinytop
    shinytop Posts: 2,165 Forumite
    Eighth Anniversary 1,000 Posts Name Dropper Photogenic
    @danrv,  An A2W ASHP plus radiators for your house is likely to cost around £15k.  But RHI might get you back most of the increrase (or more) over your £8k A2A system and give you cheaper HW, as well as being 'proper' central heating.  You do have to find the money up front though and make sure your insulation is up to scratch.  
  • Swipe
    Swipe Posts: 5,613 Forumite
    Part of the Furniture 1,000 Posts Photogenic Name Dropper
    danrv said:
    Swipe said:
    You'd probably need some back up heat source for the depths of winter unless you let them run all day then they are fine. 
    Also was wondering about the high positioning of the indoor units.
    Considering that I’m after a heating system, it would make sense for the units to be at floor level like radiators or storage heaters.
    I find them fine at high levels and the air direction is very controllable. Mine are quite sophisticated with various settings on how to blow, also includes intelligent sensors that detect people's presence.
  • Reed_Richards
    Reed_Richards Posts: 5,301 Forumite
    Part of the Furniture 1,000 Posts Photogenic Name Dropper
    The great thing about air-to-air is that it heats the air to the temperature you want.  With air-to-water you have to make the water hotter than you want the air to be so it's less efficient.  But I agree with @shinytop that the RHI that you get with air-to-water will level-up the economics.     
    Reed
  • danrv
    danrv Posts: 1,600 Forumite
    Seventh Anniversary 1,000 Posts Name Dropper
    edited 24 May 2021 at 8:38PM
    Cardew said:
    With a large unit do not ignore the potential noise problem as mentioned earlier in the thread.
    Thanks. The pump would probably be located on the garage roof/end wall. 
    The adjacent property is around 17 metres way. The other side is attached.

  • Swipe
    Swipe Posts: 5,613 Forumite
    Part of the Furniture 1,000 Posts Photogenic Name Dropper
    danrv said:
    Cardew said:
    With a large unit do not ignore the potential noise problem as mentioned earlier in the thread.
    Thanks. The pump would probably be located on the garage roof/end wall. 
    The adjacent property is around 17 metres way. The other side is attached.
    I can't see noise being an issue at that distance.

Meet your Ambassadors

🚀 Getting Started

Hi new member!

Our Getting Started Guide will help you get the most out of the Forum

Categories

  • All Categories
  • 351K Banking & Borrowing
  • 253.1K Reduce Debt & Boost Income
  • 453.6K Spending & Discounts
  • 244K Work, Benefits & Business
  • 598.9K Mortgages, Homes & Bills
  • 176.9K Life & Family
  • 257.3K Travel & Transport
  • 1.5M Hobbies & Leisure
  • 16.1K Discuss & Feedback
  • 37.6K Read-Only Boards

Is this how you want to be seen?

We see you are using a default avatar. It takes only a few seconds to pick a picture.