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F Gas
Jul 18, 2022 21:13:32 GMT
Post by DIYDafty on Jul 18, 2022 21:13:32 GMT
Thinking of installing some proper air-con. Ran into some stuff about needing to be an "f gas" installer. But also read these units are usually pre-gassed and maintenance free.
Some suppliers in the UK insist you give them the name of the f gas installer. I haven't seen anyone do that with real gas before - anyone can buy a gas boiler.
I've half a feeling its about "net zero" BS and its just a case a screwing one box on the inside, one on the outside, a hole inbetween and a 13A spur off the ringmain.
Anyone done it before or any thoughts on it?
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F Gas
Jul 18, 2022 21:21:02 GMT
Post by DIYDafty on Jul 18, 2022 21:21:02 GMT
This sort of warning is everywhere: These air conditioning units must be installed by an F-Gas qualified engineer. We can install the unit for you using our F-Gas Certified Engineers. Please note if you do not select our installation service we will not ship the unit until we have obtained evidence from you that you will have the unit installed by an F-Gas qualified engineer.www.orionairsales.co.uk/mitsubishi-electric-air-conditioning-ms-wall-unit-a-aa-43-c.asp |
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Post by battle1066 on Jul 19, 2022 18:31:54 GMT
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Post by dickpuller on Jul 20, 2022 19:13:06 GMT
I’ve fitted Mini Split units, like the one in the link.
Pre-gassed, it was very easy to fit.
It was in an Office I had & it was brilliant!!
It was a small, rented office & no way of fitting a boiler.
The mini split was only around £200 at the time & around 3KW Heat Pump or AC. It wasn’t even an invert type & the evaporation outdoor unit was sited in a Warehouse area. I had a Energy Meter on it & was just plugged into a wall socket(13Amp). Summer & Winter I was getting around a COP of around 3.
Since then I’ve bought a Vacuum Pump & Manifold, Gauge & Hoses.
I’d certainly Pull a vacuum on the Line Set & double check for leaks.
I’d definitely fit another one.
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F Gas
Jul 21, 2022 6:28:57 GMT
Post by crowsfoot on Jul 21, 2022 6:28:57 GMT
It certainly is the way things are going in the need to register every few years for the job that you do (I wouldn't be surprised if you have to register to fit air con units).
A guy who I used to work with had two units in his property and said they that were brilliant.
He also thought that they were the future rather than heat pumps!
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Post by dickpuller on Jul 22, 2022 15:09:01 GMT
It certainly is the way things are going in the need to register every few years for the job that you do (I wouldn't be surprised if you have to register to fit air con units). A guy who I used to work with had two units in his property and said they that were brilliant. He also thought that they were the future rather than heat pumps! An Air to Air mini split is a cheap unit as they’re used extensively throughout the world for AC. Unlike Air Source Heat Pumps or Geothermal Heat Pumps, which there’s a limited demand for & are expensive. Air Heating of any kind is a bit unpleasant, where as, UFH is lovely to live with & well suited to a ASHP or GeoHP, with Low Temperature water. |
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F Gas
Jul 22, 2022 15:15:31 GMT
Post by dickpuller on Jul 22, 2022 15:15:31 GMT
This sort of warning is everywhere: These air conditioning units must be installed by an F-Gas qualified engineer. We can install the unit for you using our F-Gas Certified Engineers. Please note if you do not select our installation service we will not ship the unit until we have obtained evidence from you that you will have the unit installed by an F-Gas qualified engineer.www.orionairsales.co.uk/mitsubishi-electric-air-conditioning-ms-wall-unit-a-aa-43-c.aspAn F-Gas Ticket is really only for the Handling & Storage of Refrigerant Gasses. I’ve fitted HPs on New Build jobs where we did the whole install & a Fridge Engineer came in to Pull a Vacuum, Test & turn the Gasses on. We did all the copper Line-Sets etc. |
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F Gas
Aug 14, 2022 15:49:52 GMT
Post by DIYDafty on Aug 14, 2022 15:49:52 GMT
Well, dunno about up north but down here its been 2 months of non-stop heat and I'm sick of it and want some rain....
I was thinking of going for one of the DIY targetted aircon units and grateful to Battle pointing those out. However they are quite a bit more expensive and I wonder if they are as good as from better known manufacters like Mitsubishi etc.
So I came across this video from a DIY bloke in the US. I didn't watch any of the electrical bits but skipped to the bits when he's using his manifold and pump. At £20 and £50 in the UK it would still be a lot cheaper to do that then get it pre-gasses.
I didn't like how he coiled up the pipes so maybe I'd need to get a flaring tool as well. If I end up fitting a few of these units these tools would pay for themselves many times over.
If anyone wants to see how I end up fking it up and gassing the planet let me know and I'll start a new thread about it (for you to laugh and me to get plumbing advice.....)
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Post by dickpuller on Aug 15, 2022 18:58:06 GMT
For the Pre-Gassed Split Units, you don’t need to pull a vacuum Dafty, but for the sake of minimising leaks, it’s advisable. Also it does greatly reduce the shit in the ‘line set’. Back to lower temperatures & rain here in Jockoland, which is a right cunt, cause I love the heat!! Cool Easy do cheap split units. www.cooleasy.co.uk/categories/easy-fit-air-conditioning/high-wall |
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Post by battle1066 on Aug 17, 2022 21:13:33 GMT
Well, dunno about up north but down here its been 2 months of non-stop heat and I'm sick of it and want some rain.... I was thinking of going for one of the DIY targetted aircon units and grateful to Battle pointing those out. However they are quite a bit more expensive and I wonder if they are as good as from better known manufacters like Mitsubishi etc. So I came across this video from a DIY bloke in the US. I didn't watch any of the electrical bits but skipped to the bits when he's using his manifold and pump. At £20 and £50 in the UK it would still be a lot cheaper to do that then get it pre-gasses. I didn't like how he coiled up the pipes so maybe I'd need to get a flaring tool as well. If I end up fitting a few of these units these tools would pay for themselves many times over. If anyone wants to see how I end up fking it up and gassing the planet let me know and I'll start a new thread about it (for you to laugh and me to get plumbing advice.....) DD i can’t see you having any issues with that install and it would be nice to see another of your projects documented! |
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Post by dickpuller on Jan 28, 2023 7:37:18 GMT
I was reading through this thread again & thought it maybe useful for the hard of thinking to watch John’s video. A highly respected guy in the field of Heat Pumps & his book is also a brilliant read;
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Post by joinerjohn on Jan 28, 2023 18:12:24 GMT
How efficient are these mini split units ? Say for heating just the living room in winter to a comfortable temp? ( one where I don’t have to have my coat, and three jumpers on ) How much leccy do they use ?
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F Gas
Jan 28, 2023 19:19:45 GMT
Post by dickpuller on Jan 28, 2023 19:19:45 GMT
How efficient are these mini split units ? Say for heating just the living room in winter to a comfortable temp? ( one where I don’t have to have my coat, and three jumpers on ) How much leccy do they use ? Like most Heat Pumps sold these days, they’ll give you a SCOP(Seasonal Coefficient of Performance), which gives an annual average efficiency of the unit, so the performance in the colder periods is offset by the better performance in milder weather. As above, I stated the performance I got from a bog standard cheapo one. For outdoor temperatures above zero, I’d say they perform very well, but I’d have a supplementary heat source in my home. A big multi-fuel stove for these very cold Winter nights. I know of one Loch side development, for all year round Holiday Guests. These were A frame type Wooden Chalets, heated by two Split Units & a Log Burning Stove. Of Course, the added advantage of a Split Unit is AC in hot Summers👍👍 The latest Grey Thinking, is run your HP 24/7 & having lower Set-Back Temperature settings - for during the night for example. Most Split Units have a Remote Control, where Times & Temperatures can be set. |
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F Gas
Jan 28, 2023 21:15:09 GMT
Post by joinerjohn on Jan 28, 2023 21:15:09 GMT
Cheers Dickie, was wondering if I had one for the living room, I could turn the central heating down say 10 degrees, so the living room is nice and warm and the rest of the house a bit cooler . Or is it hardly worth it ? ( I can always put three jumpers and a big coat n gloves on ) 😂😂😂
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F Gas
Jan 28, 2023 21:15:15 GMT
Post by joinerjohn on Jan 28, 2023 21:15:15 GMT
😂😂
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