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General: Air conditioning unit for a shop?

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    My partner is looking to open up her wedding shop later this year. We have found a suitable unoccupied premises for rent.

    Ideally we would like to install an AC unit, the building is of solid wall construction, single glazed windows, air tightness is probably poor. Without spending loads on insulation etc as we are only renting, what are our air conditioning and heating options?

    I'd estimate the volume of the shop including the cellar to be 385m3

    Thanks
    •  
      CommentAuthordjh
    • CommentTimeApr 27th 2016
     
    The simplest is to put an aircon unit in a window, as is (was?) seen commonly throughout America and the Far East.
    • CommentAuthortony
    • CommentTimeApr 27th 2016
     
    Or DIY install of a split unit from the web, my last one cost £348, working nicely
    • CommentAuthorringi
    • CommentTimeApr 27th 2016
     
    Get your forced ventilation right and you won't need to use a AC unit for most of the year. It is uncommon in the UK for the outside air to be too hot.

    Just moving fresh air with large extractor fans at the back of the shop and air inlets at the front will help a lot. You need a way to seal up the extractors and air inlet when running the AC or heating.
  5.  
    Ringi, yes, but you could be using the air-con unit for heating. Low capital cost. From what the OP says there seems to be no other heating provision already.
  6.  
    Yes there is no heating at present, so I'd like one that does heating in winter and cooling in summer.

    I appreciate in an ideal world the building would be insulated but not sure how much that would cost, certainly not willing to use our money in a rental property.

    What split heat pump would you recommend? I assume I'd need to do a full heat loss calculation first?
  7.  
    Hi,
    I helped with similar recently for a shop, it was a Mitsubishi Zen 2.5 Kw heat pump split unit. Chosen mainly for looking nice (if that's possible) rather than the spec. Works fine, Was quick to install through to an outer area (check planning if outside unit visible). No problems with it.
    Main problem with retail / shops is frontage is not double glazed and generally the buildings are un-insulated and maintained poorly. This particular place has very bright sunlight so from freezing in the morning the temp would rocket as soon as the sun came over the office opposite. Unit seems to cope well this.
    Mind you staff still think the only setting is 31 deg but that usual.

    http://www.mitsubishi-zensation.com/en/home.html

    Cheers
    Mike up North
    • CommentAuthorgyrogear
    • CommentTimeApr 27th 2016
     
    A good airtight door lock might be a first investment.

    gg
    • CommentAuthortony
    • CommentTimeApr 28th 2016
     
    Keeping it closed would help a lot more :bigsmile:
  10.  
    We installed a Chigo split unit back in 2016 and has worked well since.

    Got another shop to kit out, any links for decent kit perhaps at trade price?

    I think now you have to be f-gas registered to install which defeats the object of being a DIY install

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