RM Cylinders Stelflow Direct Unvented Cylinder 210Ltr (38557)

£ 519.99INC VAT

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RM Cylinders Stelflow Direct Unvented Cylinder 210Ltr (38557)

Unfortunately we are unable to ship this product to Northern Ireland and offshore addresses. The tolerance on the cylinder diameter, cylinder height, and positions of connections specified is plus or minus 6mm.

With excellent mains pressure flow rates and 50mm insulation for high energy efficiency. Suitable for all direct electric systems. Includes 22mm compression connections and fixing kit.

  • Stainless Steel Tank
  • 25 Year Manufacturer's Guarantee (T&Cs Apply)
  • Suitable for All Direct Electric Systems

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View all: RM Cylinders Unvented Hot Water Cylinder

£519.99INC VAT

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Rated 4 out of 5 by from top class cylinder perfect finnish good to look at ,easy to follow instalation instructions,better than more expensive hot water cylinders, I have fitted.
Date published: 2012-05-02
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Was considering one of these: GLEDHILL PULSACOIL STAINLESS ELECTRIC OV MAINS PRESSURE THERMAL STORE, but your cylinder appears to do the same job for considerably less. Am I correct?

Asked by: DWH273

If this is fitted in a hard water area (101.1 mg/l calcium) do I need to fit a scale reducer.? If so electrolytic or magnetic?

Asked by: Alavino
MORNING, WHERE HARDNESS LEVELS EXCEED PERMITTED LEVELS OF 200mg/LITRE AND CALCIUM LEVELS ARE IN EXCESS OF 20mg/LITRE SOME FORM OF WATER SOFTENING SYSTEM IS ADVISED TO BE INSTALLED UP-STREAM OF THE CYLINDER A INLINE SCALE REDUCER WOULD NOT BE ADEQUATE. FAILURE TO INCORPORATE SUCH A SYSTEM COULD LEAD TO FAILURE OF THE CYLINDER. WE DO NOT RECOMMEND ANY SPECIFIC MANUFACTURER. REGARDS
Answered by: RM Cylinders Expert
Date published: 2019-07-29

Is this cylinder suitable for use on economy 7 off peak electric?

Asked by: Alavino
YES THE LOWER IMMERSION HEATER IS THE MAIN HEATER AND SHOULD BE SET ON THE OPK SETTING TO WORK WITH E7 THE UPPER IMMERSION HEATER IS THE BOOST
Answered by: RM Cylinders Expert
Date published: 2019-07-01

Is there two electric immersion heaters pre fitted to this item?

Asked by: drby
yes 2 x 3 Kw
Answered by: RM Cylinders Expert
Date published: 2021-06-06

Difference between this and Prostel

Hi What is the difference between this and Prostel apart from the price? https://www.screwfix.com/p/rm-prostel-unvented-direct-cylinder-210-litre/53518
Asked by: AdeyJ
Hi, The insulation properties of the Prostel are of a lower spec, there fore the heat loss factor would be greater. Regards
Answered by: RM Cylinders Expert
Date published: 2018-09-22
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Specification
Bar Pressure 3 bar
Brand RM Cylinders
Connection Type 22mm Compression
Direct/Indirect Direct
Manufacturer Guarantee 25 Year Manufacturer's Guarantee (T&Cs Apply)
Model Name/No Stelflow
Pack Size 1
Pieces in Pack/Case 1
Product Diameter 545 mm
Product Height 1478 mm
Product Type Unvented Cylinder
Suitable System Suitable for All Direct Electric Systems
Tank Capacity 210 Ltr

Product contents

One unvented cylinder and one fixing kit.

*Delivered direct from our suppliers in the number of working days stated on the delivery button