My new apartment hot water system

Joined
17 Aug 2018
Messages
2
Reaction score
0
Country
United Kingdom
Hi

I'm trying to make sense of the hot water system in my new (second hand) apartment.
It's not like anything I've seen before. I know it's unvented, and the hot water comes out at mains pressure


Question 1: there are 2 mains boxes (heating elements) powered by different plugs - one feeding into the lower half, the other feeding into the upper. Wonder why, and what purpose each has.

Question 2: what's the small cylinder at the top for?

Question 3: the capacity of the cylinder says 210 liters. That's a lot for a small one bed flat - seems very wasteful for me to heat 210 liters everyday when all I do is wash about 3 dishes and take a short shower. There seems to be no option to only heat a small volume of water (no sink option).
Should I look into replacing this system with something else , this system was installed 5 years ago.
 

Attachments

  • 1534542846967-556734031.jpg
    1534542846967-556734031.jpg
    150.3 KB · Views: 84
Sponsored Links
1) The lower one will be connected to Economy 7 (if you have it) to heat up at night on the cheap electric. The upper one is a boost to be used if required during the daytime

2) It's an expansion vessel. It takes up the expansion of water as it heats. It should be checked annually as part of the service

3) The cylinder is well insulated so you're not heating the entire 210L every day, just topping up from what you have used. You could just heat the top half and leave the lower immersion turned off if you wanted, but heating the top half on higher rate electric is almost certainly going to cost you more than topping up overnight on the low rate. There's no point replacing it - you'll spend more than you save.
 
Next time you move home... Try looking for gas CH and DHW on the particulars BEFORE you take the plunge, if you are that concerned about such things :)
 

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.


Are you a trade or supplier? You can create your listing free at DIYnot Local

 
Sponsored Links
Back
Top