Black Friday has landed ‐ View all deals

Dual Safety Thermostat 7" (21275)

£ 10.99INC VAT

Add to basket for...

Dual Safety Thermostat 7" (21275)

Dual safety system prevents overheating problems. Not for use with Ariston immersion heaters.

More Info

View all: Unbranded Immersion Heaters

£10.99INC VAT

Add to basket for...

Dual Safety Thermostat 7" is rated 4.3 out of 5 by 43.
  • y_2020, m_11, d_27, h_16
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_43
  • loc_en_GB, sid_21275, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getAggregateRating, 11ms
  • REVIEWS, PRODUCT

Add to saved list...

Save
Rated 5 out of 5 by from Perfect E xactly what was needed to restore our water heating system. Exact replacement needed (for a more expensive original), available quickly and cheaply.
Date published: 2020-11-23
Rated 4 out of 5 by from Good overload feature The product is slightly larger than the original which required a fiddle to seat it. But it works. The overload feature is a comfort. There is no explanatory sheet which would be helpful.
Date published: 2020-11-18
Rated 5 out of 5 by from Well made Looks a decent bit of kit. Well made, good size cable clamps and a reset button. Came is sturdy cardboard tubes so well protected. Easy to fit and reliability is not yet known.
Date published: 2020-11-04
Rated 4 out of 5 by from Mr Harper just right for the job,would definitely recommend and buy again
Date published: 2020-09-23
  • y_2020, m_11, d_27, h_16
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_43
  • loc_en_GB, sid_21275, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 103ms
  • REVIEWS, PRODUCT

Replacement for Diamond H WT7 ?

I'm thinking of replacing the thermostat for a Redring A11T immersion heater. The current thermostat is a DiamondH WT7, 15A 250V. Will your product be OK?
Asked by: scartho2
Hello scartho2, This thermostat has not been tested with the Redring A11T so we cannot say for certain if it will be suitable or not. Thank you for using Q&A (CW)
Answered by: Cwalm
Date published: 2020-08-31

What temperature does the high limit/safety cut out operate at?

Asked by: MCBB
Hello MCBB, The manufacturer has advised that the cut out will operate at 85-92°C. Thank you for using Q&A (CW)
Answered by: Cwalm
Date published: 2020-06-17

THERMOSTAT CHANGE

2 QUESTIONS:- 1. My one already fitted states 12.5A 240V on it, so am I able to use 15A 240V you sell? 2. The fuse in the consumer unit is 15 amp do I need to upgraded this fuse to a bigger amp fuse?
Asked by: Anonymous
Yes, you will be able to replace a thermostat rated at 12.5 amps with one that is rated at 15 amps. You should not change the fuse in the consumer unit. It is the immersion heater element which draws the current in circuit, probably about 12.5 amps. This means that the thermostat, which is essentially a switch, must be able to handle at least that amount. The fuse is there to protect the circuit so should be rated as low as possible, in order that it will blow if the circuit current raises too high for the wiring or equipment without affecting normal operation.
Answered by: Tiny1968
Date published: 2019-05-01

Will this be OK as a replacement for a 7 " Heatrae thermostat

Asked by: Bugsalone
Hi Bugsalone. As far as we are aware, the should be a suitable replacement for the 7 " Heatrae thermostat. I hope this information is of help to you.
Answered by: Pebo
Date published: 2017-08-17

Can I use this to replace a 12.5 amp thermostat

Asked by: Ppppppp
  • y_2020, m_11, d_27, h_16CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.12
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_5
  • loc_en_GB, sid_21275, prod, sort_[SortEntry(order=LOCALE, direction=DESCENDING), SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 117ms
  • QUESTIONS, PRODUCT
  • bvseo-msg: BV SEO Content for this product did not include verbose reviews.;
Specification
Manufacturer Guarantee 1 Year Guarantee
Pack Size 1
Pieces in Pack/Case 1
Product Length 7 "
Product Type Dual Safety Thermostat
Temperature Range 10 to 70 °C