Electric boiler taking too long to heat water

[Luke Killick]

Hi,

I’ve just moved into a new flat with an Electrastream boiler, and when I first moved in it seemed to get to around 45 degrees in around 45 minutes. Now, (about two weeks later) I’m luck if it gets to 40 degrees in an hour. This seemed to happen after a new shower was fitted.

Can anyone suggest a reason for the increased length of time it takes to heat up? (The manufacture says it should take 50 minutes to get 50 degrees). With the boiler rated at 9kW, I’m keen to minimise the amount of time it takes to reach optimal temperature - anything less than 40 degrees is too cold to shower.

 

[Wilko]

Hi Luke - welcome to you and your very cool bike
Water heating slowing down might indicate a fault. Are you renting? Can you describe what the new shower is?

 

[dmxtothemax]

Maybe they put in one of those water saving shower heads, which effectively reduces the water flow, less hot water = less total temp,
especially if you enjoy a good shower !

 

[sean_ork]

The temperature of the incoming water may have dropped.

 

[Deleted member 26818]

Sounds as if the amount of water being heated up has increased.
Is the feed for the shower taken direct from the cylinder?

 

[Luke Killick]

It’s still the original shower head, just the actual shower itself that was replaced as it had lost pressure, there’s also a temp reading on the boiler itself which take noticeably longer to increase now.

I believe it is taken directly from the cylinder, though the taps in the kitchen seem to be at odds with the shower temperature (perhaps because the kitchen tap isn’t mixed whereas the shower is?)

Thank you for your replies

 

[LankyWill]

Might be a build up of scale on the immersion heater, I’d suggest calling an electrician or plumber to check the coil.

 

[Luke Killick]

Might be a build up of scale on the immersion heater, I’d suggest calling an electrician or plumber to check the coil.

Yep I think that looks like the way it’s going to have to go, thank you. Luckily it’s a rented property so I won’t have to shell out!