Are Back Boilers Illegal?
Old Back Boilers Are Not Illegal.
Old back boilers with gas fires as central heating systems are not illegal too. Back boilers are still legal to use provided they have been services and maintained regularly by a qualified Gas Safe Engineer.
If your property has a back boiler that’s either given up or you simply want a more modern heating system, most professionals will advise you to upgrade to a combi boiler.
You could even not have to pay for this too!
You can replace it with a new back boiler but they are considered old fashioned now and not as efficient as new combi boilers.
You cannot install an old second hand backboiler since 2005 due to high carbon emissions and government safety regulations.
Back Boilers Vs. Combi Boilers
Let’s take a look at a few facts about combi and back boilers to help you make your choice.
Baxi Bermuda Back boilers are still present in many UK homes, particularly with those homes built between the ‘60s and ‘80s.
A back boiler is a boiler that is built in behind a gas fire or solid fuel fire that is used to heat the home much like a central heating system.
These older systems usually require a lot of maintenance and are not particularly efficient. Average efficiency is around 60 -70% .
Back Boilers are generally very reliable with not many moving parts to go wrong , you will eventually need to replace it.
Energy Efficiency
In the back boilers versus combi boilers debate, combi boilers win hands down.
- A Combi boiler will be up to 90 -100% efficient
- A back Boiler will be 70-80% efficient
Replacing a back boiler with a combi boilers will pay for itself in a few years through reduced energy costs.
Installation – A new boiler installation may be the best choice if you’re facing a series of costly emergency repairs as the back boiler unit approaches its end of life.
It is not cost effective to keep throwing money at an old boiler and this money would be better served paying for a new boiler.
Pressure Problems
You may not be able to use modern dishwashers or washing machines with high water pressure that comes from traditional back boilers.
Combi boilers are a good choice for replacing back boilers since they require less space and are easy to install.
However, they will not be able to heat massive amounts of water as a back boiler could.
Space
Combination boilers combine the central heating boiler with a hot water heater in a single compact unit, which means you do not need separate hot and cold-water tanks in your loft to supply the back boiler.
For this reason Combi boilers are a good choice for small homes or flats where space is very limited.
Switching to a combi boiler could free up space in your water cupboard or current utility room.
Hot Water Supply versus Demand
The greatest drawback of combi boilers is their ability to provide hot water for simultaneous use.
Traditional boilers fire up twice a day, heating up the water whether you need it or not.
While this has the disadvantage of not being energy efficient, it also means that you have a reserve of hot water that can be delivered to multiple taps in the home.
However, combi boilers may not be able to meet your needs if you have two people taking hot showers at the same time.
A system boiler may be a better choice in that case. You should also know that having a tank is not always a benefit when it comes to the water supply. Having a tank also means that your hot water can run out.
Combi Boilers Hot Water
However, combi boilers can meet modest, intermittent demand for hot water.
On the other hand, a combi boiler can do a better job of meeting demand if you’re constantly using some hot water through the day for showers, laundry, and dishes, but do each separately.
As a traditional boiler only fires up twice a day, you’ll have to wait for hot water if you use up the current supply. Not only that, but there’s also the possibility to install more than one combi boiler to deal with the simultaneous use issue.
If you are looking to replace a back boiler, combi boilers are probably the best choice. However, you need to take a variety of factors into account in order to select the best boiler for your household’s needs.