Hot Water Cylinder Jacket 18 x 80mm x 1219mm (43483)

£ 20.27INC VAT

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Hot Water Cylinder Jacket 18 x 80mm x 1219mm (43483)

Multi-panel cylinder jacket comprising flame retardant cover with 80mm glass fibre infill. Supplied with tie cord, heavy duty fixing tapes and all fitting instructions. Suitable for all hot water cylinders.

  • 4-Panel for Ease of Application
  • Flame Retardant Cover
  • Heavy Duty Fixings

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View all: Essentials Pipe Insulation

£20.27INC VAT

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Rated 5 out of 5 by from good quality Good quality product and as usual at a really great price
Date published: 2022-09-12
Rated 4 out of 5 by from Fiddly to fit 4 piece insulation- each piece enveloped in red plastic. Couldn’t find any instructions- but it is pretty self evident what to do. I built it from bottom up. 2 pieces overlapped in wrapping completely around an 1980’s cylinder. So 4 pieces wrapped around the cylinder twice., on top of each other. Comes with ties to help the wrap. Not insulation enough though to cover the top of the cylinder. Hence 4 stars But great for the price and the boiler is already less active in trying to heat the water. Shame about the top.
Date published: 2022-09-08
Rated 2 out of 5 by from Very thin. Flimsy ties. Each panel is only about 20-25mm thick. You only achieve 80mm if the 4 panels are laid over each other. Also the panels aren't full so by the time you spread the insulation out to fill each bag they are even thinner. The cover on 3 of the 4 panels I bought had 4-6in tears in them which I repaired with gaffer tape. I would have returned them but I already had to wait 4 days for "next day collection" and the queues at my local store are usually out the door as only one member of staff is normally on the tills while rest are in the back somewhere. Luckily I still had my original 25mm thick tank lagging so when I put this stuff over it I achieved approx 80mm with overlaps. If you do fit this to your tank have a good ball of string handy as the flimsy ties supplied with this can't take much tension and break quite easily. I can't really comment on performance or reliability as I have only just fitted it.
Date published: 2022-09-08
Rated 5 out of 5 by from HOT water! Easy to install, comes in 4 panels with string to tie all together at top and several lengths of cord to tie around the tank. We now get two showers instead of one from a tank of hot water heated at night... Has made a big difference.
Date published: 2022-09-06
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My cylinder is 60” x 22” What are the sizes of the individual panels of this product? There is feedback suggesting that the quoted size is incorrect. I need to work out if I can insulate my cylinder by using multiple packs.
Asked by: ballistichamster
Hello ballistichamster, The dimensions for the panels are 18 X 80MM X 1219MM Thankyou for using Q&A
Answered by: ASTENT
Date published: 2022-09-06

Panel size

Approximately what are the dimensions LxW of each panel? Thanks in advance
Asked by: Rick86

What is the maximum safe surface temperature for the plastic? Thank you

Asked by: Qwertyuiopqwert
Hello Qwertyuiopqwert, Our supplier has advised as follows: 'Hot water cylinder jackets are tested to the BS standard 5615. This test is done using a standard hot water cylinder and it is heated to the standard operating temperature range (60-65 degrees). The jacket is then measured on the amount of heat loss from the jacket, so there is no specific surface temperature that it is measured against.' Thank you for using Screwfix Q&A.
Answered by: JTremain
Date published: 2022-01-29


I've just moved into a house with a hot water cylinder, which is not insulated. I've measured the dimensions as approx 166 cm high / 172 cm circumference (86 diameter) Would buying two packs of the above work do you think
Asked by: SarahK66
Hello SarahK66, Yes, these are just flat rectangles of insulation which are tied into place around the cylinder so you could use multiple packs if you wished. You might just need to buy some longer string. Thank you for using Q&A
Answered by: Cwalm
Date published: 2022-08-02

Suitable for unvented cylinder?

Can this item be fitted to a C rated unvented cylinder to improve heat retention?
Asked by: Carlos0387
Hello Carlos0387, The jacket is suitable for all types of cylindrical hot water storage tanks. Thank you for using Q&A
Answered by: SWake
Date published: 2022-09-02
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Brand Essentials
CE Standard (Tested to EN...) BS 5615.
Manufacturer Guarantee 1 Year Guarantee
Pack Size 1
Pieces in Pack/Case 1
Product Diameter 18 "
Product Length 1219 mm
Product Thickness 80 mm
Product Type Hot Water Cylinder Jacket
Product Width 450 mm

Product contents

4 x cylinder jacket panels, one top tie cord, 4 x lengths of fixing tape and fitting instructions.


Safety Data Sheet (COSHH)