Split Air con

@DampCat We've had three indoor units (two 2.5kW and a 5kW) from an 8kW outdoor unit all Mitsubishi and they've been excellent since we got them in 2022. They tick along at around 700w energy use each and the outdoor unit is silent.
 
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MassiveJim said:
I've got it in one room, don't expect it to work miracles but it definitely helps
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The stuff I got off was €12 a roll and it dropped the ambient temp in the south facing rooms we used it on by 2-3°C.

We used 5 rolls, and while it’s not the most relaxing thing to fit (think giant phone screen protectors), our is still giving that 2-3°C temp reduction 4 years later being having been exposed to 40°C summers.

As always, I would recommend shutters or an awning if those are possible as stopping the sunlight from reaching the window/doors is always the most efficient way to stop windows heating up.
 
CaptainRAVE said:
Our kitchen unit is smelling a bit when it first comes on.

Will try these cleaners:


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That's mould

It's because you are not drying out the system, everytime you run it in summer condensation builds up inside the heat exchanger and if you don't dry it, it causes mould

Either leave the system on 24/7, or if you insist on turning it on and off constantly, in summer after using it, let it dry out before turning it off
 
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Gazanimal said:
I’m glad I got a split unit put in my office space last year as it’s usable both for heating and cooling if necessary.

Only downside is it’s too bloody efficient and can feel too cold. :cry:
Even when I set it to 21c it feels like a fridge.
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Depends how far away you sit from it. I find the further away you are from an aircon the better. Because the temp you set is a target temp for the room, not the temp of the air coming out of the unit, and you sit too close you get hit with cold air.

I tested this by setting my air con to 18c then used a thermal camera and the air coming out of the air con was 2c, and because the air is just 2c, you will feel ice cold if you sit right next to it. This is also why portable air con's make good coolers for computers, you can funnel the near freezing air straight in
 
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Grim5 said:
That's mould

It's because you are not drying out the system, everytime you run it in summer condensation builds up inside the heat exchanger and if you don't dry it, it causes mould

Either leave the system on 24/7, or if you insist on turning it on and off constantly, in summer after using it, let it dry out before turning it off
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How does one encourage it to dry out after use?
 
So it’s heating time of year rather than air con. Usually I’d expect lots of water to be dripping out of the drain pipe from the outdoor unit, but it looks like it’s blocked (at the exit of the unit rather than the pipe itself). Took off one of the plastic caps elsewhere on the base of the unit and the water poured out. I may connect a pipe up to it, but for now it can just drip onto the path.
 
Looking to add another unit to one room and had a quote for another 5kw wall unit to go in our ex conservatory (proper roof + lantern). Gone back to Subcool who have given me a quote of £2.3k for the mitsubishi electric, but wondering if anyone else has any recommendations for south coast installers?
 
Just an FYI on a previous post I made.

Had a small installer set us up with 3x Fujitsu units, £4k. The units do what they are supposed to but don't do some things that my previous 'All In One AC from ElectriQ' did - the downside of this cheap unit is, if one thing breaks it all breaks.

Things it doesn't do that with the cost, it should. Turn off all lights on the AC unit - The most used AC unit is in my bedroom but it has a constant green light that could be turned off on the cheap model but not here.

Constant flow - My old AC would keep the fan on even if the desired temp was reached. The new AC unit turns on at whatever force you set it but once it hits the temp required it turns off. You can set it to just 'fan' mode which always stays on but it doesn't do any temp control so could just be pushing warm air around.

Pro's are - they get temp down much quicker than the cheap unit with much more energy efficiency.

Completley replaceable at each stage, the unit, the pipes, the gas etc

Basically, cheap units vs expensive install. If you can afford to replace a 'cheap £500' unit every 2-5 years and don't care about the energy bill. Go for it, they work, and as long as you know within a few years something will break and the whole thing needs to be replaced for £500.

Pay more for the 'proper' install but make sure you know what units you are going for, what they do and don't do etc - This will cost you on average £5k for 3 units. But they will have the base warranty, the installer warranty (and if you go for a smaller company they will care a lot more about feedback than a big box company). If you get the right units, the right installer, the right price - this is a much better long term (10+ years) solution. But it will be a lot more expensive initially.
 
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ive been quoted
Daikin Perfera system
  • 1 × Daikin Outdoor Multi-Split Unit
  • 1 × Daikin FTXM50A – 5.0 kW Indoor Unit
  • 2 × Daikin FTXM25A – 2.5 kW Indoor Units
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£8300 installed. Is this a good price? I've just started my air con purchase journey after getting solar panels.
 
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