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  • How many rooms do you want to have air con in?

    You will have to live with a wall mounted evaporator unit in each room. The more rooms the bigger the outside condenser unit you will need.

    They aren't maintenance free either. The evaporator and condenser need cleaning and making sure the water pumps are working. Modern gas is a lot more environmental friendly but the CO2 cost to a leak can be frightening. You have to be qualified to maintain them as well so it's not a DIY job and you can't fit them yourself.

    If you are rich and want a cold and hot house they are great. If you want to save money then it's not a place you want to go to.

    To qualify. I test air con as part of my job.

  • Yeah I get ya. It’s gonna be spendy.

    Our flat is about 900sq foot. Last summer it was often 29-30 daytime and 26 at night inside so obvs a fan or being naked - although sexy - isn’t going to work.

    We have no outdoor space. We have a toddler. It’s gonna suck. It might suck less if we can escape the heat in our place because we won’t be escaping it in an office or cafe.

    So if not a two piece pro unit what about air conditioning a single room - a bedroom for instance with a portable?

  • So if not a two piece pro unit what about air conditioning a single room - a bedroom for instance with a portable?

    I've got a 10,000 BTU portable unit in my home office, as it's a small room packed with computers and monitors and is south-facing, so gets a bit warm in summer. It sits by the sash window, with the hose pointing out of it and a DIY blanking plate blocking the rest of the opening which doesn't have the hose sticking out of it.

    It works pretty well, but it's bogging noisy. I certainly couldn't sleep in the same room while it's on. It might work if you pre-cool the room with the AC before going to bed, and then turn it off though. TBH I haven't used it for the last few years, as I only use it in extremis, and it hasn't been too stinky hot for the last few years.

  • Are you thinking about those things you see in USA windows?

    Real air con relies on separate units. One is taking the air in the room to heat/cool over the coil, the other dumps the cooled/heated gas outside via the other coil.

    'Portable air conditioning' doesn't exist. Sorry.

  • If you have windows that get a lot of sun, fitting solar control film would help.

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