Dear Sifus, im having a mini dilemma here. What I intend to do is to have a medium sized (10"-12") rain shower connected to my soon to purchase water heater                                            
                                            
My current method is to purchase a water heater with pump and rain shower, and purchase a new shower head seperately to fit to replace the default shower head (as the one provided with the heater is small)                                            
Approximate cost would be                                            
Water heater with rain shower- RM700-RM800
10-12" Shower head - RM300-RM400                                            


The heater model im planning to get (joven i70p)
                                       
Question 1                                            
My question is, do I have any alternative way to get a rain shower setup with my heater since from what I checked                                            
the rain shower column itself can cost between RM500-RM1000                                            
                                            
Question 2                                            
Will my water heater with pump be able to produce enough presure to push the water up to the rain shower?                                            
Current built in shower head has decent water pressure. (any idea how I can quickly check the pressure readings?)                                            
                                            
Question (slightly off topic)
Why is the water pressure in my 2nd bathroom stronger than the one in the master bedroom?

Question 4
Are the shower head fittings standard?

Thanks in advance!

This post has been edited by aztechx: Nov 17 2014, 02:34 PM

Ans 1
You can op to install a centralized water heater. Cost of heater will be around 2 electric water heater that you plan to buy. But you need to have budget to install additional hot water piping.

Ans 2
Usually the water heater pump will only generate pressure enough to support its own rain shower. I don't think it will have enough pressure if you change the original rain shower into 10" or 12". Even if the pressure is enough, the electric heater maybe cannot heat up to the temperature setting as the flow rate will be too fast for the heater.

Ans 3
Pressure different might due to piping connection. Maybe your second bathroom is nearer to your main water inlet as compared to master bedroom. Hence causing pressure drop.

Ans 4
Shower head fitting is standard.

ps: If you are interested to know of any other alternative to have a centralized hot water system for your house, kindly PM me

Regards,
Lee

TS can consider Rennai come with rain shower n built in pump.

wat about panasonic ?

Pana still dun have rain shower for bigger head.

I had mine 8yrs ago still preform quite well, noisy for AC pump, that's I recommended on Rinnai DC pump & rain shower, just slightly expansive but quite enjoyable for take bath.

This post has been edited by kimsim: Nov 17 2014, 04:52 PM

Rinnai ... is this brand convincing ? DC pump for sure , if u dont want noisy sound and expensive bill...LoL

If got pressure enough then install centralized quite enjoying like in hotel room.

Just share mine newly installed for my Sg flat.




For only used 25L storage tank.


Also joint to kitchen sink and master toilet basin for mixer tap.

Rinnai around 900 I'm not wrong, cause my sister in law just recent installed.

This post has been edited by kimsim: Nov 17 2014, 05:02 PM

RM900 for instant water heater ? its too expensive already.....i would expect max RM700+ only ..someone told me he saw panasonic rainshower in pj shop....erm

Maybe you can try sharp slightly cheaper

Thanks Lee for the detailed reply!

Regarding the centralized heater, i dont think thats an option for now due to budget constraints and that im currently living in a two bathroom condo with only two occupants. Might consider in the future though. Will the centralized system come with a dedicated water pump?

Ans 2
Was a bit sceptical on the ability of the heater to cope with a different shower head and theres no way for me to 'tryand error' in this case. I guess better not take the risk

Is there a quick way for me to detect the current water pressure by DIY?

Thanks for the reply kimsim. Took a look at rinnai website, is this the one u meant?



Tried looking for the spec details of the shower head but couldnt find any on the website. Any suggestions on where to get the unit?seldom see rinnai heaters so far in kl

Looks like ill have to settle for the default rain showers from heaters for now. Ill go for the biggest one i guess..
Rinnai looks good

Oh and thanks for sharing ur bathroom setup! Looks great with the centralized water system u have there. I could only dream of having that for now.hehe.

This post has been edited by aztechx: Nov 17 2014, 05:12 PM

Wanna enjoy rain shower, have to invest something wow.
If the normal shower head, quite cheap at round Rm400 you can have a Pana better one already

Go SengQ you can find out what is the price tag.
Very impressive look

Went to senq a few days back and all they had were the alpha rain shower series which were the weird bended small rain shower. Didnt really like it. I think ill try to take a look at another outlet.

I was initially planning to get a setup like yours the 'budget' way but i guess you get what you pay for applies well here..

Thought of getting any instant heaters with rain shower and refitting the head with something like this for an additional rm400.is it advisable?So heater plus shower combo might cost me around 1000-1200. With that budget i guess that might be the best choice i have. For the centralized system i might consider it 4-5 years down the road when i renovate my bathroom.


Lelong link

If incoming water are low pressure, even putting instant water heater with pump you won't get much improvement, I would say minor improvement. Unless the supply pump are powerful which I doubt. And another problem come with water flow too fast you won't get hot water, even warm water is hard when rainy day.

When you have a rain shower, the shower heard install above the pump, that making the instant water heater pump work harder and reduce the pressure.

This post has been edited by weikee: Nov 17 2014, 05:24 PM

I knew Alpha got some complain, after you push n stop water, once you turn on again, the water will be suddenly too hot like burning your body, after while become cold and keep warm to become hotter.

Pana will be slightly hot only.

But when used centralized totally change my life's

This post has been edited by kimsim: Nov 17 2014, 05:36 PM

Sad to said, you have to forget your plan. The instant heater with pump is not enough pressure for this big shower. The small pump is not strong enough. The big shower require high flow rate at least 2.5bar.

The minimum requirement is storage heater.

But for storage heater, will the water pressure be high enough?

For storage heater, the pressure is from the main pipe. And probably not enough also.

For such a big shower, it require 3/4 pipe size. Instead of normal 1\2.

Not really lah, come with such built in pump can easily take the water pressure, not as strong enough but just right.

Also depend which area, if tap water already not strong enough then better used the smaller head to be save some money.

This post has been edited by kimsim: Nov 18 2014, 08:18 AM

You mean the "storage heater" come with such built in pump can easily take the water pressure, not as strong enough but just right.

??

Not lah, for instant one.

Storage tank is depend on water pressure or change smaller piping.

If the incoming (source) water is low pressure, need a external pump, minimal 1/2hp pump. The build in pump is good for the instant water heater use, putting a rain shower is like putting a Kancil engine in a sedan can, it just not enough pressure to push the water out.

I bought this rain shower with led light. Worked well 1 day. After that until now the led not working. Waste of money.Better buy the one without the led..

I bought something like this (10" or 12" not sure) and planning to use water heater with pump.
Hopefully pressure is enough, if not then just add a dc pump at the main pipe.

Good luck. And do let us know here what is the result.

Hopefully lol

Btw havent buy the shower heater yet, already bought the rain shower non-concealed.

https://forum.lowyat.net/index.php?showtopic=3377813&hl=


This post has been edited by WaCKy-Angel: Nov 18 2014, 09:19 AM

Lol

storage heater with rain shower after taken bath of the feeling you can't tell... Very enjoyable of the rain.. If can then taken more longer

Vs normal instant heater really different world...

This post has been edited by kimsim: Nov 18 2014, 09:27 AM

where did you buy?

i had a concept in mind on my bathroom and the led would fit just right.
no warranty? no replacement or after sales service kah?

Bought online from china.No warranty.Even in lelong i dont think there is warranty.You can try those who willing to give warranty.My water tap however the led still working since day one.

thanks for the input guys

i guess having a 10-12" rain shower is out of the question for now due to budget constraints as well as risk from issues related to water pressure. Maybe i will reconsider when i intend to renovate my bathroom.

Currently im stuck between the two choices below which is the same price

Not sure which one has the bigger shower head and if theres any difference feature wise. i know that the i70p has an on off button for the pump. unsure about the rinnai one though

Rinnai
REI-A360DP-R-WS


Joven
i70P

No budget then get joven, if got extra cash then get Rinnai, both are the good brand also specialist on heater series.

if use water heater with pump what type of pipe type & class is require? GI pipe may not be any issue but what about PVC?

Brought this Rinnai heater after saw your post picture. Really difficult to find.

Will install it this 2day and see how good is it.

My sister in law house installed 2 also, one got rain shower & the other don't have, not sure both is built-in pump, also diff color silver & black.

I am never test yet, cause still pending on my hand of help her paint the wall & ceiling

any feedback on the Rinnai heater ? from the spec got built in RCD too .. extra protection..

Hi there ozak,

I bought my unit also yesterday and wikl be installing today.
You mind sharing how much you bought it for?
Got it at rm750 without installation from a bath and kitchen shop in shah alam.
Agree with you,Really tired looking around for this particular model

"delete"

This post has been edited by ozak: Nov 28 2014, 12:22 PM

I too installed the exact same rinnai both with and without the rain shower. Performance wise, OK and it looks good.

Install it yesterday. Take about 2hr. Running very silent compare to the old 1.

Noise level about 55db at max pump running. The shower head flow is not strong as those big type. So if you looking for a strong flow, you will be dissapointed.

The cost:
1) Heater - RM720
2) Plumbing parts - RM5
3) Labour - Free

Here the step by step for those like to DIY.

Time to change the old heater after use for 7yrs. Still run perfectly without any problem. Just change for the safety reason.


Here the new Rinnai heater with pump.



The internal part. Pump at the right, heater left, pump controller on top the pump, heater controller ontop the heater and the connection at the top right.


The diameter of the shower head is 7". Not that big consider the flow is not strong. You won't get a quick shower with this. Use the handheld for stronger flow.


First of all, swicth ON the heater.


Press the test to check the RCD function. Also as switch OFF the heater.


Use multitester to double check. After makesure no power, Switch OFF the heater Switch.


Takeout the wire and tape it with pvc tape. Close the stop cock to the bathroom water. Takeout the inlet piping. Now the old heater can be takeout completely.



Measure the height according to the manual. In this case around 1200mm. Mark and drill a new hole. Screw the heater to the wall.


Continue.......

This post has been edited by ozak: Sep 12 2018, 09:10 AM

Connect the wire to the connector. Makesure the wire secure tight with the screw connector. Cost this heater run at high watt when max. Otherwise the connector will heat up and kaboom.


I put an additional silicon to seal the wire intake hole. Cause the heater from the shower head is a bit near. This is to prevent the water from sipping in and kaboom the heater.


Done for the wiring. Now the plumbing side. I have place the elbow to the inlet heater valve. So I can measure the vertical pipe lenght that need to be cut.


Use sand paper to clean every fitting and pipe that need to be glue. This will clean up the oil and dirt. So the glue can melt the pvc pipe securely. Wipe with clean cloth.


Tape the screw fitting with white seal tape.


The vertical pipe is temporary insert in. Now use the elbow to mark the lenght of the pipe to be cut. Glue all together. In this step, you need to act fast. The glue will cure fast. Plan which fitting to go in first and how to fit in together. Than apply the glue.


The plumbing done. Wait for 1/2hr or longer for the glue to harden. It actually need 24hr to be harden. But since the water pressure not that high, 1/2hr should be alright.


Open back the stop cock. Check for any water leakage. Than turn the heater valve to open. Let the water flow out from the shower head. Check any leakage in the heater side joint. This is important to makesure no water leak out internal. Any water leak, disamssembly it and take the heater to claim. Close the valve and put back the heater cover.


Switch ON the heater switch. Than reset the RCD. If the RCD trip, switch OFF and check the wiring.If everything OK, the heater light will ON.


Continue........

This post has been edited by ozak: Sep 12 2018, 09:11 AM

Don't run the heater first. Push the test button at the heater to check the heater RCD function or not. All this checking is to makesure the safety device function properly.



After all the checking is done, run the heater. Open the valve. The motor will start to run. The strong of the water flow is adjust at the left of the heater. (pump speed) Than turn the heater knob slowly. Wait 1min for the hot water to comeout. Let the heater run for 15-20min to check for any problem.


To turn OFF the heater, turn the heater knob OFF. Wait for the cold water flow out. Than close the valve. The pump will off. I always use this way so the next person use won't get burn. And also prolong the heater lifespan.

Happy happy shower.

This post has been edited by ozak: Sep 12 2018, 09:12 AM

Used PVC bigger size via smaller size of stainless steel or PVC pipe got water pressure different?

Nope. This is the end piping to the heater. so no different. Need bigger pipe size from the beginning tank side.

Standard plumbing rule for house is 1/2". While the main is 3/4".

Noted..

Unless you buy nut reducing

This post has been edited by kimsim: Nov 28 2014, 02:17 PM

What nut reducing?

Thumb of rule, 1/2" is standard plumbing for inside house. Otherwise you have problem with all your tap, faucet, shower head...etc. Use bigger size pipe if you plan properly and understand what you do.

Hmm wait go back home take photo to show u

He he just found my neighbor sg he also used it S/S look more nicer.

Frankly speaking, it is not really nice. Those flexible hose tangling around at below is a mess. Not your neighbour, even my 1.

I prefer the mixer type with everything running inside the wall.

I find it messy.

This one champion

You are right cause you see too many pipes akraady.
But for our bro ozak can simple used the shorter one, look more nicer or rather than used grey color PVC pipe

Wow kids most happy to take bath like that also used water like no tomorrow

How the hell going to bath with this thing?

It look more like a water fountain.

This post has been edited by ozak: Nov 28 2014, 03:50 PM

Ai yah I just mention the s/s pipe as the main connected from the wall to heater only.

This post has been edited by kimsim: Nov 28 2014, 03:56 PM

A direct SS pipe joint to the heater from the tap side.

hahahaha if from the top okay lah this one wash face kua...... hahahaha

You heaven't see the contractor done for my sister in law house... Lagi ugly.

For the existing one they never used and then they used the direct water and though from the ceiling and expose on the grey PVC pipe from ceiling to heater and bending like snake.

this one more unique

This one , just a fake look only, but internal still got pipe and shower head

yeah it is a design for retro country looks.... better than bare shower only mah...

hey guys wonder did anyone bought anny rain shower heads from taobao? I dunno how good are they...

TaoBao can used lah, but not last.. Whatever you pay as cheap

Share mine bought in Jb



Also this

This is acrylic sealer right? If before dry can wash away with water is acrylic. Silicon can't wash away with water.

Got acrylic sealer?

So far I found was silicon only

How much?

Rm1200 for whole set and the other set at around Rm600 included mixer

Looks good- is it the fountain type where the water comes out like rain? i got conned last time i bought one but they water sprays out instead of falling like rain. my fault i didn't ask for a proper demo

Got acrylic caulk. Ask hardware store.

Now look better. Give some paint on the pipe and the trunking. It blend to the wall.



This post has been edited by ozak: Sep 12 2018, 09:09 AM

Yup, it is acrylic sealer. Multipurpose sealer. Apa gap and material also can use. Can get it from ACE.



This post has been edited by ozak: Sep 12 2018, 09:12 AM

Good job man, sorry I'm too busybody already.

JB don't have AEC hardware... Maybe I looking in s'pore

Hardware shop got sell la. Just get the chalk type and get the chalk gun.

Noted

This sqaure type not really like heavy rain, but enough for body on middle rain.

Also used the centralize storage tank can be more fixable to adjusted the hot, so become your bath time will be slightly longer and feeling don't one stop the water and continue take bath.

Really relaxing when bath

This post has been edited by kimsim: Nov 28 2014, 10:10 PM

sounds good. that's what i wanted. sigh wait till this one rosak la i'll go buy.

Wow u got it cheap!!where did u buy it from?i have yet to find a decent shop to regularly get my stuffs from.

By the way, i noticed that even at the highest setting the water is not even close to scalding hot, i mean i dont intend to scald myself, but it is only warm at most even at the highest setting, even worse when using the rain shower mode. Is it considered normal? Or is my water pressure too strong?

Seems like the heater runs fine even with the pump turned off as my water pressure is considered quite high even on normal days. Should i regret buying a pump unit?hehe

I too am uncomfortable with the wiring setup done by my installer, worse is he charged me rm100 for installation..
Will consider using the silicone gel like u did with yours


This post has been edited by aztechx: Nov 29 2014, 11:17 AM

Don't expect hot with instant water heater when is rainy and water flow are good. Only if you have >4kwatt instant heater only can feel hot.

Off the pump or reduce the water flow you will feel hot.

Get it from Puchong. The shop look like 1 to die or not die condition. Don't look for big shop.

How hot the water depend on few condition.
1) water temperature inlet
2) water flow speed.

I only turn the knob to half to get the temperature I need consider now the water temperature is a bit cold than normal.(raining season) Pump speed is max.

You need to measure the water temperature only can tell. I will check later what is the best temperature.

I remembered the heater in my parents home were the type that hurts you if you set it too high, but then again the water pressure there was quite bad due to it being an old apartment.

Tried playing around with the settings today, guess i cant get both high water pressure and high temperature at the same time on a budget.

Seems like the best result is with halfway open valve and with pump turned off. Rain shower mode with pump on, the water is just slightly warm at best. A bit disappointed.

If you live in condo, the water pressure should be good enough without the pump. Control the water flow is the only way to get a very hot water.

Your setup seems same as mind. Consider paint the pipe and the wire to blend to the wall. Look much better.

hi lowyat members, is this method possible? i have water pump at my outlet tank, so the water pressure is quite high..


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I believe that is possible. Mine was recently done and IINM it was done that way...

If the inlet not share with the rain shower, there is no problem.

What did u mean? All the water from the existing old shower is go to the water heater.. Then out to the rain shower and hand shower..

This joven water heater can stand maximum 8litre per minute..


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