New Shower Boiler Dilemma!! :shock:

[powerace]

Im abit confused at the moment regarding my new shower. I am going to have a new extension bathroom built upstairs in my 3 bedroom house. i have poor pressure in my current shower which is just a bog standard mixer. I am thinking about moving away from my current conventional boiler set up over to a combi system. i want to install a shower with body jets and a large 10" overhead showerhead. A hansgrohe system also crossed my mind requiring a min 3bar pressure.
My question is would it be best to cross over to a combi system for (an energy saving aspect too) and would i get the pressure i require? If not how would i get it? many thanks

 

[bengasman]

Provided your incoming pressure is sufficient and your pipes are large enough, a good combi will do the job nicely. Also a tad more economical than a cylinder system
For a good conversion, you will be looking somewhere about 3k if not more, depending on what else needs doing. Lot of dosh for shower though.

 

[powerace]

thanks for the reply! i must state my boiler needs replacing anyway and im not just doing it for the shower. my missus is convinced a combi is what she wants but im not stuffed. i just want the 3 bar pressure for a pukka shower..a man has to have one luxury!!

 

[Bahco]

A hansgrohe system also crossed my mind requiring a min 3bar pressure.

Will a combi deliver 3 bar pressure or should OP be looking at an unvented system

 

[Timmyturtle]

Dont skimp on the boiler
If you want a decent flow you will be better off getting a boiler with a higher domestic hot water flow rate
You also need to check your mains pressure is 3 bar!

10" is just a bit greedy isnt it

 

[JohnD]

put a bucket under the kitchen cold tap, see how long it takes to fill, work out litres delivered per minute.

this will give you a clue of what a shower through a combi can deliver (it will be rather less due to losses)

your drencher may be too big.

 

[powerace]

My wife wanted 12" head but hey u know women .. my other option is to stay with a new conventional system boiler and then put in a larger hot water tank and a 3bar pump(which i already have new in a box). My wife wants the most fuel efficient system. Its only me the missus and two toddlers in the household so our water need is not immense.

 

[numpty1]

a combi can give a reasonable shower but will not do what you want 10"head with body jets and good pressure will require a bit more. look at unvented or a thermal store.upgrade your tank and cyl to cope, would be the cheapest option,maybe even the best option if you do not mind the noise of the pump

 

[powerace]

Thanks for all replies chaps.. I looked down the megaflo/thermal store option, not totally keen on that idea. I think im going to go for the best efficient Conventional boiler system, larger hot water tank and the stick the pump on it i have... please tell me if im stupid?

 

[stardanny]

You can have a larger indirect cylinder and a system boiler ( sealed system) and add a normal shower twin pump, it will be enough for your shower. I fitted this system for my brother 3 bed house with walk in shower I built, lovely soaking shower.