Can I fit a pump to the domestic hot water system?

[Marnhullman]

In my old house there was a separate pump on the DHW system that ensured hot water was available as soon as a tap was opened. I've moved house to a recently converted barn. It's been built to a high standard but it's a large house and it takes ages to get any hot water from the taps.

Can I fit a pump retrospectively or does it require major surgery to the plumbing? There is an OSO hot water cylinder in the airing cupboard on the first floor.

Thanks

 

[hi-spec plumbing heating]

you can pump stored hot water yes.

 

[Breesey]

Not out of an Oso unvented cylinder you can't.

 

[hi-spec plumbing heating]

sorry didn't read that bit.

 

[Breesey]

But they do have a secondary return connection. This is what Snowsride needs to utilise.

EDIT: Just checked an install manual I have and you can fit a circulation pump on the secondary circuit, with an NRV.