We’d like to remind Forumites to please avoid political debate on the Forum.

This is to keep it a safe and useful space for MoneySaving discussions. Threads that are – or become – political in nature may be removed in line with the Forum’s rules. Thank you for your understanding.

📨 Have you signed up to the Forum's new Email Digest yet? Get a selection of trending threads sent straight to your inbox daily, weekly or monthly!

Heat interface unit

Things to look out for if you HIU is over locking when you are not using heating or hot water.
1.Check your heat meter reading on the hiu... Usually in kilowatts
2.If the room the HIU is in (cupboard) unusually warm.
3.if you hear flow of water even with hot water and heating off. 
Basically it means the valve that is supposed to stop the flow when not in use has failed and you have flow circulation in your system which will increase your bill. 
Meet your Ambassadors

🚀 Getting Started

Hi new member!

Our Getting Started Guide will help you get the most out of the Forum

Categories

  • All Categories
  • 352.3K Banking & Borrowing
  • 253.7K Reduce Debt & Boost Income
  • 454.4K Spending & Discounts
  • 245.3K Work, Benefits & Business
  • 601.1K Mortgages, Homes & Bills
  • 177.6K Life & Family
  • 259.2K Travel & Transport
  • 1.5M Hobbies & Leisure
  • 16K Discuss & Feedback
  • 37.7K Read-Only Boards

Is this how you want to be seen?

We see you are using a default avatar. It takes only a few seconds to pick a picture.