Hot water issue to new bath

[Craigo]

Hello

I'm hoping someone can help with this one as my plumber says he doesn't know the answer.

We have a downstairs bathroom which had a shower enclosure and a small basin. We have recently had the shower enclosure removed and a bath put in (the existing shower has stayed over the new bath). We have also removed the basin. No major plumbing work was needed - the existing pipework from the basin was extended by a metre or so to connect the new bath.

Since having the bath installed, the hot water tap only runs warm whereas all other hot taps in the house are really hot. We have a combi boiler which is situated in the kitchen, a couple of metres away from the bathroom. I've turned the water temperature up on the boiler but this hasn't made a difference to the bath tap. The new bath tap is a mixer but isn't thermostatic. We didn't use the old basin that much before but I'm certain the water was hotter than the bath tap is now.

Any idea what could be wrong?

Thanks

Craigo

 

[Chalked]

Do you have a pic, or manufacturer/ model of tap?

 

[Scott_D]

What make and model is the boiler?
Try only opening the bath tap half way
Less flow should mean more heat

 

[Craigo]

Hi Chalked. The tap is an Iflo Aura Deck bath filler.

Hi Scott - our boiler is a Biasi, model number M96.24SM/C2. I'll try only opening the tap halfway tonight.

 

[Chalked]

Hi Chalked. The tap is an Iflo Aura Deck bath filler.

Hi Scott - our boiler is a Biasi, model number M96.24SM/C2. I'll try only opening the tap halfway tonight.

thats a full 3/4 bath mixer.
As Scott -d has mentioned, you are getting too much flow . Your boiler will only, at best give 9 litres a minute. If this tap is flowing about 18 litres ( or more) your water will only get half as hot.
fitting a valve under the bath to restrict the flow or not opening the tap fully will work.

supprised your "plumber" didn't know.

 

[stevetheplumber]

recently had the same thing customer had bathroom fitted and then i changed the boiler from gravity to combi taps now flowed to fast for the boiler

 

[Craigo]

Hi Chalked

many thanks for that. Turns out that is the problem, only opened the tap halfway and the water is really hot. Simple if you know how!

thanks scott_d too, much appreciated.

 

[tamz]

Nothing wrong with the taps. Learn to open the hot tap at the bath less when you fill it or get the plumber to restrict the flow rate at the boiler (takes 2 seconds to do). Your boiler can only raise the temperature of water 40º at a flow rate of around 2 gallon a minute. The slower you run it the warmer it will be.