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RM Direct Copper Cylinder 900 x 450mm (49608)

RM 900 x 450 Direct Copper Cylinder. Grade 3 with maximum working head of 10m. 25mm standard insulation. Complies with Part L Building Regulations.

  • 2 Year Manufacturer's Guarantee
  • Complies with Part L Building Regulations
  • British Standard Kitemarked

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£139.99INC VAT

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RM Direct Copper Cylinder 900 x 450mm is rated 4.7 out of 5 by 6.
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Rated 4 out of 5 by from Lack of details of pipe sizes The total lack of any information on what size connectors to use makes life very difficult for the DIYer. When I asked the branch they told me they were only suppliers and did not give advice! Still don't know what size to use!
Date published: 2016-01-21
Rated 5 out of 5 by from Hot water tank The tank arrived well packaged and a fast delivery time for the area where i live. The tank was well insulated and as described. As in a previous review it would have been very helpful to have a list of the number of connections on the tank along with the connection sizes which in this case was 1 inch. As the tank has only been fitted for about two weeks i cannot say what the reliability is although i have given it the five stars in anticipation.
Date published: 2015-12-03
Rated 5 out of 5 by from tapings on cylinder One person has suggested not to use jointing compound only on cylinder as threads are a little generous You never ever use jointing compound only on male and female threads for water. This is only used on gas threads. Use ptfe tape,locktite or if not potable you can even use good old fashioned hemp!
Date published: 2015-09-14
Rated 4 out of 5 by from Direct Cylinder Cylinder is of decent quality. The one I received was supplied with all connections being 1" female threads. Screwfix could add this to the description to make things a little easier when it comes to knowing what fittings you might need. It is very well packaged so you can't see it without opening the box. Also it's worth noting that it's not supplied with an immersion heater or a plug to blank it off, so that will also need to be ordered separately. For the DIYers... If you are connecting to 22mm pipes then you'll need 4 x catalogue number 61955. If you are not using an immersion heater you will need a plug, catalogue number 51855. I'd advise against using jointing compound on the threads and instead use ptfe tape as the threads are cut a little generously and the tape is needed to gain a good seal. Jointing compound / paste is not rigid enough to take up the spaces on the threads.
Date published: 2015-05-09
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Does the direct cylinder have an internal header tank

Asked by: Nugu
Morning, The cylinder shown is a standard DIRECT 900 x 450 unit, it feeds and expands to a separate header tank in the loft. If an integral Heater Tank is required it would be a Combination 1200 x 450 Direct. Regards
Answered by: RM Cylinders Expert
Date published: 2017-02-16

Does this cylinder have anywhere to fit 2 immersion heaters, top and bottom, or do you have to cut your own?

Asked by: Tintin73
This is a standard direct (Electric) cylinder, the immersion heater boss is in the top dome (2 1/4") If immersion heater boss's are required in the side, this would be a special, not available from Screwfix and would have to be sourced from a proper Plumbers Merchant. Regards
Answered by: RM Cylinders Expert
Date published: 2017-02-09

Is this a sealed unit ie are any of the connections sealed off?

Asked by: Trudy81

My old one has a cold supply near to bottom of the tank, and is a 22mm fitting. Is this the same

Asked by: frank48
Thank you for contacting us. The cold feed fitting on the Screwfix 900 x 450mm Direct Copper unit is 1" female, but this can be adapted by yourself to connect to 22mm if required.
Answered by: RM Cylinders Expert
Date published: 2016-03-26

I have a copper cylinder with a small header tank attached on top, could i use this cylinder with a diect feed from the mains supply

Asked by: BENNOTOON
Thank you for contacting us. Copper cylinders can never be connected direct to the mains supply, they need to have either integral header tank (combination units) or separate header tank.
Answered by: RM Cylinders Expert
Date published: 2016-03-26
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Specification
Brand RM Cylinders
Construction Material (Plumbing) Copper
Direct/Indirect Direct
Grade Grade 3
Litre Capacity 117 Ltr
Manufacturer Guarantee 2 Year Manufacturer's Guarantee (T&Cs Apply)
Manufacturing Standards British Standard Kitemarked
Pack Size 1
Pieces in Pack/Case 1
Product Diameter 450 mm
Product Height 900 mm
Product Type Cylinder

Max. working head 10m. 117Ltr capacity.