Water Pressure For Instant Heater

[ommph 0]

Hi All,

Need your advices for this issue.

I have just purchased a 707 Compact instant water heater and a Grohe Shower Set. (Wanted to install gas water heater but strong opposition from mum...)

After installation, i realised the water pressure is very low from the Grohe shower head. So i changed the shower head to the one that comes with the instant water heater. And the water pressure improved...at least when you put the shower head lying down, the water can go as high as 10cm but with the Grohe, the water is not even 5cm.

I called up Heritage, where I bought the shower set from, they said it is my water pressure issue. After I had explained the change of shower head, they said the hole should be smaller in the original 707 shower head which is why the water spray is more powerful.

I called up my contractor and he said it is because I am using instant water heater......

So..I am now very confused.

Anyone can advise me on this???????