Associate
Surely it costs an absolute fortune to run aircons? or am I wrong?
Split Air con
- Thread starter YoungBlood
- Start date
Well the way energy prices have gone has put me right off getting it, was all set for a 3 split machine.
Caporegime
Depends on the size of the system and what you define as a fortune.
AC represents a massive improvement to quality of life in the summer, so the cost, which i've not found to be bad at all, is well worth it.
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Soldato
Not at all. Split aircon systems are very very efficient. Last year in the 40°C heat wave I kept ours on 24/7 for 2 indoor units for a few days. Pretty sure it was around £1/day extra on the smart meter, which is absolutely nothing for the comfort it gave.
Soldato
Yeah I wouldn’t worry - if you can afford to install it you’re likely to be able to/willing to pay the £3/4 a day it will cost at full blast. If you are smarter with use and not just 16c’ing it on all 3 all day it will be less.
Can't justify the expense of a fitted system for what is essentially a 1 week issue a year.
I bought a standalone 12Kw system for £600 ish (pipe out the window job) for my south facing 26ft lounge with a 9ft south facing window to try and keep my 84 year old dear cool.
That only just managed to get hold of the temp even on 24/7. Quite surprised how useless it was. Definitely put me off getting an even more expensive fitted system installed.
Edit. my bad.. 12,000 BTU not kW
I bought a standalone 12Kw system for £600 ish (pipe out the window job) for my south facing 26ft lounge with a 9ft south facing window to try and keep my 84 year old dear cool.
That only just managed to get hold of the temp even on 24/7. Quite surprised how useless it was. Definitely put me off getting an even more expensive fitted system installed.
Edit. my bad.. 12,000 BTU not kW
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Permabanned
I only used mine a few times during the summer it is however used everyday to heat during winter. They are brilliant things.
Soldato
The difference between fitted split vs wheelie cooler is night and day in my opinion. Horses for courses I suppose because we work at home a lot it’s heavily used and heavily appreciated!
Soldato
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The portable units aren't in the same league as the split systems.
Indeed, the comfort it gave me last year and the improved sleep every day was worth it alone!
Soldato
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If it was entirely my decision I'd probably have already ordered it. Missus doesn't see the point though.
I've had a quote of £1700 for a split system with wall unit to cool just one room and she won't have "a great big ugly box on the wall"
So I guess I'm just going to be miserable again this summer.
Really don't like heat. My office is airconned which makes it harder for me as I come home from work and just sit sweating.
Associate
Could you provide more detail please? What outdoor units and what indoor units
If you get an appropriately sized split system that is sufficient to cover your whole house, you can also ditch your gas boiler (and potentially the gas meter and associated standing charge) because it will be cheaper to run.
You can get split systems that heat hot water cylinders, if you fit that, your whole house will be heat pumped up and about as 'green' as it will get.
You can get split systems that heat hot water cylinders, if you fit that, your whole house will be heat pumped up and about as 'green' as it will get.
How is it cheaper to heat with one Vs gas? That can't be right.
Soldato
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Gas is cheaper per unit but gas boilers are very inefficient compared to a split aircon unit
Its just a heat pump and you should easily get a coefficient of performance of 300% and should be closer to 400% when in heating mode. Electricity is about 3x the price of gas or less if you have solar.
The worked example is that you put in one Kwh of energy (electricity or gas) and heat pump gives you 3.5-4 units of heat, the gas boiler gives you at most 0.85 units in the real world, probably less.
EDIT: just before people say 'but my gas boiler is 92% efficient', it really isn't in the real world, certainly not in the way that they are commissioned in the UK.
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Soldato
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7KW Ducted A/C
*Supply & install 1x 7kw ducted type, heat pump air
conditioning systems
*Supply and install new condensate pump & local control
*Supply & install new pipe work, cabling and support
*Supply & install new condensing unit brackets/feet
*System fully pressure tested & Commissioned to
manufacturers guidelines
*Supply & install 2x insulated plenum boxes with 4x 150mm
spigots and maximum of 3m insulated ductwork per spigot
finished with white circular air valves
1.00 4,675.00 Zero Rated 4,675.00
S
They also sent me a data sheet for a fujitsu ARXG24KMLA.
So I assume that would be the unit fitted.
Moot point at this stage however, missus has completely canned the idea now.
I did a couple of experiments during winter after we got the air con in.
Having the gas central heating on for an hour cost £2.14, and raised the temperature by 1 degree.
Admittedly only in one room (but that's the whole point, we only needed to heat that room as it's our office) but we got the temperature up by 3-4 degrees with the aircon for 6p! It's incredibly efficient because it's not turning energy into heat, it's just transferring heat energy from one place to another.
Man of Honour
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With current electricity cost vs gas, while a boiler is much less efficient, gas costs less for us vs our split air con system for heating and we have some of the most efficient units on the market.
For reference I think we paid about £1900 plus VAT per room all in, but then we got more pricey units and paid London prices. Ended up doing 5 rooms.
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I thought she was nixxing it because of the big unit on the wall of the room? The main advantage of a ducted system is that you don't get that at all. .