How does my heating and hot water work?
In your property, you do not have a gas boiler or a hot water tank. Instead, you have a Heating Interface Unit (HIU) which looks like this. The heat from our District Energy Scheme comes into this box.
Inside the HIU is:
- A heat meter – all the heat you use is metered and you only pay for what you use. We read these meters automatically ensuring that you are only billed for what you have used.
- A heat exchanger – this transfers the heat from the hot water in our network to the water in your central heating system and also to the cold water you get from your water supplier to make the hot water in your taps.
B&D Energy are responsible for the maintenance of the HIU and the cost of this is included in our standing charge. You will receive free checks from our team to ensure it is working correctly. You (or your landlord) are responsible for all the internal plumbing in your home after the HIU.
Your room temperatures are controlled as in any other home by wall mounted controllers. The operating instructions for these are contained in your resident’s handbook.
We all know how frustrating it is to have to wait for ages for the hot water from the tap to get hot. To overcome this, your Heating Interface Unit was designed by the manufacturer to always be warm and ready to deliver hot water as soon as you want it. It does this by taking a tiny trickle of heat when it is not in use. This means that even when you are not using the heating or hot water there will still be a very small heat usage. We estimate this costs you about 4p/day on average.
This is exactly the same as most gas combi boilers when not in ‘eco’ mode; it uses a tiny trickle of gas to keep the boiler hot and ready.