Spare Central Heating Pump

[fozzyfoston]

I have a spare heating pump and would like to know if it is possible to put it inline with hot water pipe in the main bathroom and also the hot water pipe to the other side of the house in another bathroom so that the hot water pressure would increase to both bathrooms.

 

[CBW]

Afaik they have to be bronze type for secondary circulation. What you propose too is wrong.

 

[fozzyfoston]

The pump is a standard central heating pump, all I want to do is to boost my hot water pressure to the other bathroom because the system is a gravity-fed system and it takes a long time for the hot water to get to the other side of the house.

 

[CBW]

The pump is a standard central heating pump, all I want to do is to boost my hot water pressure to the other bathroom because the system is a gravity-fed system and it takes a long time for the hot water to get to the other side of the house.

You’ve answered your own question - it’s a standard central heating pump - clue is in the name - designed for central heating only. If you want to boost your hot water via a pump, you need a specific one for hot water. These are not my forte, but you’ll need a positive head or negative head - this can depend on where the pump will be positioned in relation to the cold water storage cistern.

 

[HERTS P&D]

Fit one of these, then all the water outlets will be powerful:

https://www.screwfix.com/p/stuart-t...al-regenerative-twin-shower-pump-3-0bar/79703

Andy

 

[Madrab]

No - a CH pump isn't a pump, in that sense, it's more a circulator and it simply wouldn't work. As suggested, you need a bespoke water booster pump to do that job.

 

[ericmark]

I have seen a circulation pump used to get rid of the delay when turning on hot tap, but it does not increase pressure, and all pipes need lagging or it becomes like a central heating boiler and heats the house not good in summer, and of course twin pipe work feed and return to each tap. So really only done in hotels.

I know I should have when I replaced the hot water for instant heat boiled I should have replaced the pipes for smaller diameter ones, but that is a lot of work for little gain.