I am upgrading my bungalow heating system from very old gravity glow worm 
sunrod boiler with enclosed heating pump supplying 7 radiators , to a 
worcester greenstar 30 cdi with "y" plan controls with cold feed tanks and 
hot water cylinder in loft .Can any reader recommend a suitable circulating 
pump,are there any special considerations when choosing a pump.
Thanks for any replies
Gordon

"Gordon"  wrote in
news:EK2dnaN4E9LKi7renZ2dnUVZ8tydnZ2d@pipex.net: 


> I am upgrading my bungalow heating system from very old gravity glow
> worm sunrod boiler with enclosed heating pump supplying 7 radiators ,
> to a worcester greenstar 30 cdi with "y" plan controls with cold feed
> tanks and hot water cylinder in loft .Can any reader recommend a
> suitable circulating pump,are there any special considerations when
> choosing a pump. Thanks for any replies
> Gordon 
> 

I don't think so, you don't need much of a pump for your job. My hovel is 
similar.

I had a Grundfos 15/50 which worked for 10 years, though incorrectly 
mounted, I've just replaced it with an alpha, because I'm a mug for 
advertising. Can't comment on the alpha, it's waiting for the decorator to 
finish so I can put new rads on.

I think the cheaper models are quite all right; someone may comment.

They're all standard dimensions and electrics, so youo pays yer money....

mike