Box Immersion Spanner

Product Code: 29549
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.


  • Steel Construction
€10.95 Incl. 20% VAT
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Additional Information
Technical Specification
  • Brand : Monument Tools
  • Total Product Weight : 0.705 kg
  • Model No : SFX358J
  • Pack Size : 1
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


Standard delivery: €15

Free delivery on all orders over €70.00

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Box Immersion Spanner is rated 3.8 out of 5 by 49.
Rated 4 out of 5 by from Stuck Immersion Heater Killed son's Cranked Immersion heater spanner trying to get out a ten year old unit. Purchased box spanner plus using two 1.5" ring spanner for extra leveage got immersion heater out in a few minutes; with no damage to tommy bar or box head. Job done in under 20m.
Date published: 2017-04-05
Rated 4 out of 5 by from Useful tool Fitted nut well- found bar a bit short for purchase getting old unit out. No problem with fitting new unit
Date published: 2017-02-25
Rated 4 out of 5 by from It did the job! Good value, quick pick up, sturdy metal, job done!
Date published: 2016-11-08
Rated 5 out of 5 by from Emergency! Ordered along with a replacement immersion heater element. Job went well but couldn`t have done it with out this box spanner. Excellent product, many thanks
Date published: 2016-10-28
Rated 4 out of 5 by from Did the job. Sprayed WD40 round the thread and left overnight as suggested elsewhere.Last time I removed an immersion heater was about 40 years ago,think this one had been in place about 17 years.Tool fitted fine,2/3 taps with a light hammer and started to move,easier than I expected.Very pleased.
Date published: 2016-08-02
Rated 5 out of 5 by from Handles corroded joints well I replaced a 40 year old immersion heater at the weekend - the thermostat was in Fahrenheit !, I read about how to do the job and with limited space bought this. What a job! Heated the joint after removing the water, froze the joint - it would not budge. Added an extension to the bar - which started to bend!. Eventually got my son to lie on his back bracing the cylinder with his feet so it would not move at all . I then used the extension (a hollow car jack handle which fitted over it) and applied all the force I could. It suddenly moved very slowly for one full turn and then came away easily. So it works well in confined spaces and tolerates a large amount of force. Just the job. (The bent handle was straightened in a vice)
Date published: 2016-07-06
Rated 4 out of 5 by from pretty good tool Fitted well - I have tried the flat spanners before and they do not work and you have to cut away a lot of the tank insulation. The tommy bar is not really long enough - we are in a hard water area and the old heater had been there 20+ years. But using a long pair of heavy-duty grips to hold the box spanner got it moving. I read that it is best to leave the water in the tank while trying to get the first movement on the spanner - water adds to structural strength of tank and reduces risk of damaging it - of course drain before taking it right out!
Date published: 2016-05-20
Rated 4 out of 5 by from Does the job Simple tool - does the job well. Good value even if you only use it the once!
Date published: 2016-03-21
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