Pump failure

[Mercian]

Yesterday I got really loud banging coming from the water pipes near to the hot water cylinder on switching on CH system.This happened about a month before ( see previous post )but when CH engineer came the problem had dissappeared( last month)! Although he thought I might need a new pump. Now I am certain the pump has finally given up the ghost.( cant here any noise at all when on)
My question is:- am I okay to just use emmersion heater to provide hot water? Someone said I could use boiler to provide hot water (?) but I dont think that is correct
System:-
Hot water tank( upstairs),pump at base of hot water tank, header tank for hot water tank in attic.Boiler down stairs. open system

Am hoping to get a new CH system soon.
Replies appreciated.

 

[swidders]

Yesterday I got really loud banging coming from the water pipes near to the hot water cylinder on switching on CH system.This happened about a month before ( see previous post )but when CH engineer came the problem had dissappeared( last month)! Although he thought I might need a new pump.
Now I am certain the pump has finally given up the ghost.( cant here any noise at all when on)

why not replace the pump?

My question is:- am I okay to just use emmersion heater to provide hot water?

yes

 

[Mercian]

Well, am having CH engineer come on Friday and may have combi fitted or just replace my old boiler and keep old system.
If combi is best for me I may as well just suffer it for the moment.

Incidentally, how much would I expect to pay for pump and fitting?

Thanks for the reply.