My bathroom shower is directly mains fed via an instantaneous water heater, my pressure is 3bar on the mains and 20 litres per minute in terms of flow rate. I've fitted a nice bathstore Cloud 500 huge shower head and plan on adding 4 shower jets around the shower area. The jets are seperately controlled from a flow valve, so can be controlled seperately from the flow to the shower head.
My problem is this - As I'm using an instantaneous water heater, at the moment the flow to the shower head has to be turned down to a "dribble" virtually to get decent heat for a shower. So my thinking is this: fit a shower pump, hopefully as quiet as possible to increase the performance, as well as a second instantaneous water heater in series to solve the reduction in flow required for a decent temperature.
My 2 questions are as follows - can anyone help?
1) I'm finding shower pump selection tricky - I've seen lots of pumps online but little in terms of how to select one based on the specs.
So I was wondering if anyone can enlighten me how a "1.5" or "1.0 bar" pump improve things - is it as simple as adding its rated value 1.5 or 1.0 bar respectively to the pressure coming out when its running - will this give me 4.5 and 4 bars of pressure on the outlets of the pump respectively?
2) If I'm putting in shower jets, should I be using a twin head pump? - I think this makes more sense - as obviously you might want each to be at a different flow rate. With these twin head pumps - does each end of the pump start up independently if only the shower is turned on and not the jets?
3) I keep reading that shower pumps should not be connected directly to the mains, but in my situation it is obviously mains fed as I have no tank - so both the hot and cold come through directly from the mains "on demand". Theoretically there is no issue of contamination anyway - is this a warning for people connecting hot tank fed water and mains cold supply through the pump?.
4) Anyone recommend a really quiet shower pump? My home has a flat roof and is timber construction, so the quieter the better obviously!
Thanks in advance for your help!
My problem is this - As I'm using an instantaneous water heater, at the moment the flow to the shower head has to be turned down to a "dribble" virtually to get decent heat for a shower. So my thinking is this: fit a shower pump, hopefully as quiet as possible to increase the performance, as well as a second instantaneous water heater in series to solve the reduction in flow required for a decent temperature.
My 2 questions are as follows - can anyone help?
1) I'm finding shower pump selection tricky - I've seen lots of pumps online but little in terms of how to select one based on the specs.
So I was wondering if anyone can enlighten me how a "1.5" or "1.0 bar" pump improve things - is it as simple as adding its rated value 1.5 or 1.0 bar respectively to the pressure coming out when its running - will this give me 4.5 and 4 bars of pressure on the outlets of the pump respectively?
2) If I'm putting in shower jets, should I be using a twin head pump? - I think this makes more sense - as obviously you might want each to be at a different flow rate. With these twin head pumps - does each end of the pump start up independently if only the shower is turned on and not the jets?
3) I keep reading that shower pumps should not be connected directly to the mains, but in my situation it is obviously mains fed as I have no tank - so both the hot and cold come through directly from the mains "on demand". Theoretically there is no issue of contamination anyway - is this a warning for people connecting hot tank fed water and mains cold supply through the pump?.
4) Anyone recommend a really quiet shower pump? My home has a flat roof and is timber construction, so the quieter the better obviously!
Thanks in advance for your help!