A limited review of the contemporary gas fired boiler types
A limited review of the contemporary gas fired boiler types
It is not simple Choosing a new or substitute heating boiler and often technical help is required. price will be high on your list but you also need to think of other matters, the amount of hot water wanted at any moment is also crucial, the space accessible in your house and how cost-efficient your new boiler will be.
The most familiar heating boiler types are named below for your perusal:-
Chimney back boilers
Some households still have back boilers, if you look cautiously in the chimney you might see the back boiler installed out of view, the fire hiding the back boiler behind it. Low internal water pressure is a problem with these gas back boilers and you will not be putting in one of these unless it is a substitute, they take up space to install and you will require a place to both set up and obscure this type of boiler. A replacement back boiler however could be your best choice if you already have one.
Gas back boilers have not been very cost-efficient in the past, but the modern gas back boilers are more cost-efficient now, so by replacing an aging back boiler, you could make savings in your energy usage and cut your heating bills.
Modern Combination central heating boilers
Combi gas boilers have become the best selling heating boiler type for gas central heating in the UK. They are economical and small enabling them to be fitted into small spaces. They also heat cold water direct meaning that you do not will have to wait for a hot water tank to heat up – and your hot water supply will be unlimited.
A combi is also more cost-effective than other types of boiler. Because combi boilers dont use an external hot water tank, there is no water tank to heat first, and no want to reheat the same water once again if youve let it go cold. However, for this same reason – the lack of a hot water storage cylinder – your hot bath will be disrupted if anybody else starts running the hot water in your home concurrently.
Unvented system gas fired boilers
system central heating boilers store hot water in a hot water cylinder. This means that the space requirements are larger. Constructing the other system component parts into the gas boiler this means that installation is less complex and lower-priced.
With a system gas boiler you can get hot water from a range of outlets concurrently, without someone elses bath going cold when they are using it. You will also get great water pressure.
Open vent system gas fired boilers
Most homes will have an open vent gas boiler installed. This type of central heating uses two water storage tanks, both located in the loft, the airing cupboard is still required for the hot water storage tank and overall this takes a deal of space.
The first tank in the loft feeds mains supply water to the hot water storage tank.
The other cylinder in the attic enables expansion of the water in the central heating when it heats up. Whilst you can now run several hot water taps concurrently you will be restricted by the hot water cylinders capacity.