What is the modern replacement for an immersion tank and pump

[KevinRussell]

I have a immersion tank (1985) and a Salamander pump that runs 2 showers and 1 bath.
The pumps keep failing and speaking to the Technical Director os Salamander, the wrong pump is being used AND I need an S Valve fitting on the tank.

There's a chance that fitting the valve on an on tank will break it or cause problems so I am considering some modernising.

My question is - can a modern pressurised tank replace both the immersion tank AND the pump? Or should I just get the Valve fitted and upgrade to a Stuart Turner pump?

3 Bedrooom, 2 storey detached house.

Thanks...

 

[cross thread]

All depends on incoming mains pressure/ flow

 

[Hugh Jaleak]

Partly depends what you want to spend, and partly depends on the incoming cold water supply capabilities.

Cheapest option would be to alter what you have, probably needs a Surrey Flange fitted in the top of the cylinder, and some adjustment of the pipework to accommodate this, then the new pump. Bear in mind though, this arrangement draws on the stored hot and cold water, giving you a fair amount of water to use up before anything runs dry.

Swapping out to an Unvented Cylinder is the other option, giving mains pressure hot water, but that can only put out what it gets in, if the mains performance is poor, your shower(s) will be too.

 

[dilalio]

As others have said above.

Plus...
It needs to be fitted and serviced annually by someone with G3 ticket.
It'll need a discharge to outside and down low.
Ideally, should have 22mm cold mains all the way to it.

It is the ultimate DHW solution though.