1st the shed

self built a few years ago the internal size is 1.45m wide by 2m long, none of your flash 4m x 5m jobbies like you experts have

Flaming cold through the winter and too hot to store bottled beer in the summer - insulation was called for;

I managed to get a load of 25mm insulation board so I lined the roof and walls and now seem to have some sort of mock tudor beer shed, but a much more stable temp.
A shelf to sit my HLT on, then lower to the left another for my new mash tun and the new boiler on its stand below leaving just enough room to put a fermenter on the floor under the boiler tap.
The four 12cm PC fans have a removable piece of shiplap cladding behind them and suck all the steam straight out of the shed. After my first brew with the new setup the walls around the boiler were bone dry, no condensation in the shed at all. result! I did fit a sloping piece of plastic under the fans to catch the condensation from them and let it run outside so the shed stays dry. Even the cold metal side of the fridge stayed dry.

Then a storage chest running the length of the shed, two beer crates high and one deep topped with scrap floorboards and the side from pallet wood, more insulation board lining the inside. It makes a bench to sit on while watching the boil and the seat is hinged for access to the "cellar"

At the near end 3 small shelves to hold boxes of empties, Lidl's sweet pepper boxes are ideal for 20 pint bottles!

The new mash tun - an old foam filled steel cased Coleman coolbox. After using more of the insulation board to build a case for it I've discovered that after 1 3/4 hrs with 10l hot water in it my digital thermometer says the temperature inside was unchanged.
Not forgetting the electrics - 6mm SWA cable from the house connected to the previously unused 45A cooker mcb, coming to a garage consumer unit in the shed with a 40A RCD, two mini ring mains running off 32A mcbs, the first supplying the 3kw HLT, light, and fridge. The second powering the 2 boiler elements - 3kw and 2.6kw -(the 2 single sockets in the pic) and a twin socket to supply the 12v supply for the fans and the pump used to circulate water from the water butts outside through the immersion chiller.
My 1st brew with the new setup using the brewfridge for the 1st time

So - a 3 pot setup and big brew fridge along with an insulated storage box that holds 10 crates, or an awful lot more if you don't use the crates all squeezed into part of a shed 1.45m x 2m. I'm chuffed!
The best bit out of all of it is having electrics installed means I can fit a timeswitch to the HLT so it's ready to go when I get up in the morning with no delays while it heats up!