What's new
Pinball info

Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!

Air Conditioning Advice

John Taylor

Registered
Joined
Oct 15, 2013
Messages
78
I know that some of you guys have had AC fitted to their games rooms. I have a well insulated converted double garage that I want AC for, more so for the heating in the winter. I have about 30m2 but intend to get an overspecced split AC unit to churn out some good heat. I am assuming I should be able to get it warmer quicker... and cheaper than my convectors and 3Kw fan heaters (which I have on smart sockets).

With the cost of energy these days I don't want to leave something on all the time especially as I may only go in there for a couple of hours at the weekend.

At my last property I took a feed off the central heating as I had an overspecced boiler... this kept it at a reasonable temp. I cannot do this easily now.

I have just had the electrics upgraded with an outdoor rotary switch ready to wire it into.

Question..... I am sure I can fit it myself with no issue especially with the pre-gassed easy fit split systems. Most of the retailers say it must be installed or certified by an F-Gas engineer. Any thoughts on this, should I do this myself, pay for installation or look for an engineer to certify.

Thinking of something like this...


Cooleasy F-gas engineers are 'from' £249 plus VAT.

Any thoughts
 

Paul

Staff member
Joined
Oct 5, 2012
Messages
10,011
Location
South Wales
Alias
Toibs
A mate of mine is an Aircon engineer... They are designed and are more efficient when they are "excercised"... so not necessarilly a good idea to over-spec too much (just a little)...

Manufacturers will only cover the warranty if it is installed by an F-Gas engineer. You can install yourself... hoewever no warranty (allegedly)
 

DRD

Site Supporter
Joined
Oct 26, 2014
Messages
4,653
Location
Newark
I do not know whether you can realistically diy install these or not.

If it is a back to back installation, I would say that the mounting of the internal unit, external unit, core drilling, electrical connections and pipe laying are jobs any competent DIYer could so with suitable tools.... in particular decent core drilling gear.

The second stage felt a bit more involved.... When my units were installed, the guys put nitrogen under pressure into the system for 1 hour to see whether there were any leaks. They then ran a vacuum pump on the pipework for a while (30 mins ?) before gassing it up.
 

Paul

Staff member
Joined
Oct 5, 2012
Messages
10,011
Location
South Wales
Alias
Toibs
Our Highly Advanced HITACHI Inverter easy fit pre gassed air conditioning super inverter heat pump units are some of the most cost effective units currently available on the market.

Pre-gassed... so yes you can fit yourself. You get one shot at it - muck it up and you have to get an engineer in to re-gas.

The fuss around R32 is that its flamable, and after a few cases where it hadnt been installed properly, causing a fire, it was the usual "treat everyone like an idiot" mentality... hence the requirement to use a f-type installer. The manufacturers had to adhere to the requirements.. so used it as a reason to tie in with the warranty..
 
OP
John Taylor

John Taylor

Registered
Joined
Oct 15, 2013
Messages
78
Thanks for the advice all, appreciate it. Going to get a couple of quotes for supply and install to see what the cost difference is and go from there. Cheers
 

Neil McRae

Site Supporter
Joined
Jun 5, 2016
Messages
13,727
Location
Surrey
Alias
Neil McRae
you need a 3.5kw system if its really well insulated. go for mitsu and I'd avoid Hitachi, we had few of those and the outside compressor seized on them all after about two years.
 

Balazs

Registered
Joined
Oct 19, 2019
Messages
271
Location
London
Alias
Baz
If you want to install yourself you have to vacuum the pipes before you open the valves of the filled gas.
If you want to use for heating you can choose the ac which optimalised for heating. Cop number shows the efficency of the unit.
 
OP
John Taylor

John Taylor

Registered
Joined
Oct 15, 2013
Messages
78
Thanks for all the advice on the air con. Went for a Mitsubishi SRC45ZSP-W (4.5kW 15,000btu) in the end. Decided to pay for installation, it's costing me about £500 extra but will ensure I keep the warranty. Installition this Friday, will let you know how it goes.
 
Top Bottom