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Monument Tools

Box Immersion Spanner

Product Code: 29549

3 3/8" (86mm) A/F. Immersion heater spanner with separate tommy bar. Without slot to ensure removal of immersion heater flex and to reduce the possibility of electric shock.

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Box Immersion Spanner Instruction Manual



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Box Immersion Spanner 3.7 5 24 24
good tool used this the other day struggled to get the old heater out due to it being puttied up!! but this spanner worked well 24 Jul 2015
Box Immersion Spanner Very good bit of kit, bought this to try & remove my old immersion heater, unfortunately the heater was well & truly stuck to the point on bending the “tommy bar”. However this is a great tool at a reasonable price and will not damage the cylinder lagging, unlike the spanner type. 14 Jun 2015
Does what it says decent fit for immersions surrounded by foam lagging. Tommy bar could do with being longer and stronger for that over tightened immersion but overall -- Not Bad 25 May 2015
No use on rounded-corner octag This is a sturdy tool; but it was no help to me. Even after neatly removing the washer from under it; our old-style heater wouldn't shift. This 87mm-across box-spanner turned on the 82mm-across heater element, without moving it. Screwfix' instructions do not cover removal of old heater element at all; but instead skip from disconnecting wiring to cleaning the thread, and fitting a new element! I had to drill a line of holes across the head of the old heater; then carefully cut and file to split one brass shoulder and thread entirely. Then, using my 12" Stanley FatMax waterpump pliers, I could squeeze the split-line enough to unscrew the thing. The Screwfix box-spanner's cost, in both time and money was all wasted: as I had to use my other tools, and ingenuity, to get the job done. This spanner is no use on tighter old-style rounded-corner octagonal heater elements. 13 Apr 2015
  • 2015-08-27T15:26:37.273-05:00
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Brand Monument Tools
Model No SFX358J
Pack Size 1
Total Product Weight 0.705 kg