hot water cylinder

[Eilidh]

The hot water cylinder in a flat I own needed to be replaced. I called a plumber 3 months ago requesting a new cylinder with Economy 7 and boost functions however smaller if poss, this would be the same as old cylinder but give more space in cupboard. Plumber assured me that a smaller cylinder could be fitted with these functions. Work looked great, but tenant was not in property for a few weeks and it transpired the water was not heating with either Ec7 or boost. The plumber said the testing and commissioning was complete (this consisted of checking if water going in and out of cylinder, not if it was heating up! Not my idea of testing!). Unfortunately I had already paid a large sum for this work. Plumber eventually came out at beginning of Jan fitted a new boost however the water still wasn't heating up using Ec7. After numerous lengthy discussions getting no where I've been informed by the plumber the cylinder fitted will only do either boost or Ec7 functions depending on what switch the element is wired to. This is not what I wanted so I am extremely frustrated only getting an honest answer now after 3 months and spending a lot of money. Could anyone tell me if the cylinder (picture attached) can be hooked up to both boost and Ec7 functions? Or has the plumber fitted the completely wrong cylinder!

Thanks in advance.

 

[Steelmasons]

Oh dear , single immersion heater boss so either economy7 or boost dependant on which spur is used.

 

[Charnwood]

(picture attached)

Or not, as the case may be.

Old
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New
View media item 72633

 

[Eilidh]

Oh dear , single immersion heater boss so either economy7 or boost dependant on which spur is used.

I was hoping that this wasn't the case! I'll need to speak to the tenant to see what they would prefer. Is Ec7 really that much cheaper than having the boost on for an hour a day?

 

[Eilidh]

(picture attached)

Or not, as the case may be.

Thank you, I thought I had attached!