Pond / QT insulation

[Davej]

Anyone increasing the amount of insulation on their QTs this year?

Our growing on and QT are in an insulated shed, GO is at 24, air temp in the shed Friday at 7am was 20, put on the Polycarb cover Saturday, air temp this morning in the shed was down to 16!!

I need to sort the insulation on the outside of the QT. Is Kingspan the best way to go for this?

Regards

Dave

[Gazza]

Hi Dave,

When i built my QT i put Kingspan on the inside of all the walls like a sandwich between the marine ply

[eds]

I was talking about insulation to Sushi this weekend and he made a very good point (not too unusual!!!! ). I have a QT already (a frame pool with liner) and as it's already structurally sound then he suggested that 50mm polystyrene sheets would be cheaper, lighter and excellent insulation. You could glue it to the outside of an existing QT pretty easily. 50mm insulates most tropicals during shipping - but I'm still thinking of using two layers!!!

[Davej]

Hi Ed

You are on the same lines as me, the more insulation that goes on the less grief I will get from the other half when it gets cold!!

Must look at the thermal qualities of Kingspan against 50mm or more probably 100mm polystyrene, think KS board is about double the cost of 50mm polystyrene.

Regards

Dave

[brother of feeeshpond]

My tank is outside, not enclosed in a shed---even though it should be. I use polystyrene and am thinking of going up to 100+ mm.(although I am happy with 50mm---like beer--you can never have enough
The only problem I have /still get with poly is if you are not careful when doing maintainance etc it tends to break off into little balls and the fish think its food--so I keep a little net handy to skim it out when It drops in, if you have some sort of skimmer fitted I doubt it would be a problem at all.

[mio]

Hi Dave ..

I was looking at these for the bottom of the Pond recently ..
http://shop.ebay.co.uk/items/__polystyrene- ... scZsheetas" onclick="window.open(this.href);return false;

[Bob Hart]

For uneven surfaces or to wrap something up such as Vortex's, try this stuff.

It's called thermawrap and is bubblewrap coated with a silver surface on both sides. I read somewhere that it's as good as 4" of normal inulation, but I can find the link which showed the insulation properties compared to each other.

http://www.diy.com/diy/jsp/bq/nav/nav.jsp?f ... id=9273745" onclick="window.open(this.href);return false;

More infor on this product here - http://thermawrap.co.uk/" onclick="window.open(this.href);return false;

Floor - Equivalent to approx 150mm quilt insulation
Wall Lining - Thermal resistance 1.455M2K/W (equivalent to 65mm of Polystyrene)
Achieves Class 1 surface spread of flame tested to BS 47 Part 7
CFC & HCFC Free
Thickness 4mm

[mio]

Great stuff Bob

I have some for the Filters and semi-circular pond Walls

HPIM1212.JPG (187.54 KiB) Viewed 23257 times

[Bob Hart]

Mio,

Looks like you have a bulk buy there, was that off of ebay?

I've seen some which has the aluminum on both sides and some which has it on one side, I guess they have differeing insulation values.

[mio]

Hi Bob ..
Yes Ebay - my second Home It`s called 2L2 has foil both sides here`s the description below - He has none on at the Mo but sells as many Rolls as is required - worth keeping an eye out for him

********************************************************************************************************************************************************************************************
LARGE ROLL OF 2L2 ALREFLEX THERMAL INSULATION or ALUBUBBLE ALUMINIUM FOIL INSULATION BUBBLE This is aluminium on 2-sides. Can be used in Residential, Industrial, Commercial and Retail Applications IDEAL FOR ROOF INSULATIONS, DRY LINING, CAVITY WALL, PITCHED ROOFS, STUD WALLS, UNDER FLOORBOARDS, ATTICS, GARAGES, OUTBUILDINGS, ETC. High performance insulation systems Meets new Approved Document L requirements for 2002 Economic solution to achieve U-values as low as 0.25 W/m2K Meets NHBC Technical Requirements Unique Class ‘O’ fire performance grade CFC and HCFC free, does not promote the growth of fungi or bacteria. A multi-layer air bubble insulation manufactured by a continuous lamination process of low-density polyethylene and aluminium foil with sealed bubbles of air between the two outer laminates. It is a very effective insulation material, which works by trapping pockets of air within its structure and by the reflective surface of the foil layers. The foil works in conjunction with the air spaces in the construction to enormously reduce heat loss due to thermal radiation Offers the building designer an exceptionally aesthetically pleasing finish combined with Good Thermal Insulation and light reflectance properties. Waterproof, will act as an excellent vapour barrier once all joints are taped. Gives durability and corrosion resistance without reducing the insulation properties. Co-extruded polyethylene air bubble made from six layers of PE film provides strength, rigidity for ease of use and handling and effective insulation performance happy bidding. ps a free roll off silver foil tape for the joints .



more rolls if needed and also the 1l1



thanks for looking please look at my other items


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[Davej]

Ta Guys

Very helpful

Regards

Dave