Selecting the right boiler type
Selecting the right boiler type
When you pick out your next gas fired boiler there are a number of things you require to take into the decision. As well as the expense involved, whether you will use one hot tap or several simultaneously it is to be looked at, how cost-effective the boiler is and what space you have accessible for the installation.
The most familiar central heating boiler types are:-
back boilers
Back boilers are still found in some houses, installation of these gas back boilers was usually at the back of the chimney in the front room, the back boiler being sheltered behind the fire. If you do not already have this central heating system then its not going to be a first option for you as the water pressure is low, it is space-hungry and you will require someplace to obscure your boiler. However if you currently have a back boiler then a straightforward replacement could be your best option.
gas back boilers have not been noted for their efficiency in the past, but the modern back boilers are more economical now, so by replacing an aging back boiler, you might make a large savings on your heating bills with improved boiler efficiency.
Popular Combination central heating boilers
The combi gas fired boiler is now the most popular type of central heating boiler. Combi central heating boilers use gas sparingly and are smaller than other gas boiler types enabling them to be thrust into small cupboards. As they take cold water from the mains and heat it instantly this removes any delay in waiting for hot water – consequently you get an unlimited stream of hot water.
Combi boilers are more cost-effective than the other gas fired boiler types. As they don’t store hot water there are decreased heat losses. One disadvantage to look for is that you hot shower could run cold if someone turns on the hot water taps in the kitchen simultaneously.
Unvented central heating heating boilers
A system gas fired boiler works on the concept of retained hot water. You will want to find some room in the airing closet hold this. Many of the parts of the heating and hot water central heating system are built in, which means that installation is speedier, cleaner, smoother and more economic.
A Benefit of the hot water cylinder is that it enables the drawing of multiple streams of hot water at the same time. water pressure is increased if the tank is fitted high in the home.
Open vent central heating heating boilers
an open vent heating boiler is the most familiar type of central heating boiler. They come with 2 water tanks to be fitted in the loft., the airing cupboard is still required for the hot water storage cylinder and overall this takes a lot of space.
The first cylinder in the loft feeds mains supply water to the hot water storage cylinder.
The other cylinder in the attic helps expansion of the water in the central heating system when it heats up. Many taps or showers and baths can be run simultaneously but the hot water cylinder does have a finite capacity.