Gas Boilers

Types of Gas Boilers & More

In Irish homes, gas boilers have, for many years, been the most popular choice for heating and hot water. They provide a clean, efficient, and comparatively cheaper source of energy.

Climate change is, of course, one of the most significant and urgent global challenges as many countries move towards zero carbon emission goals. Making gas boilers the preferred choice for many homes. There are a few things every homeowner should know about Gas boilers and we are going to look at some of this below.

Gas Networks Ireland:

There are six Gas providers in Ireland for you to choose from, Bord Gáis Energy, Electric Ireland, Energia, Flogas, Iberdrola, Panda Power, PrePayPower and SSE Airtricity. Bes sure to regularly check your gas bill and the prices offered by each supplier.

Types of Gas Boilers

Depending on how old your home is there are several types of boilers commonly used in Ireland. They include:

Gas Condensing Combi Boilers

One of the greatest advantages of condensing combi boilers is the fact that they eliminate the need for water storage tanks (both cold water and hot water storage tanks). They are connected to the home’s main water supply and they provide hot water or heating only when required.

Unlike conventional gas boilers, they can provide heating or hot water at any time of the day. And since they have external components as compared to many other heaters and boilers, they take up far less space, making them particularly ideal for homes with limited square footage.

WD Plumbing and Heating specialise in the installation of Combi Boilers. We are used to working in all sized homes and ensure a fast and efficient installation.


System Boilers

System boilers work in the same manner as conventional boilers in that, they produce and store hot water in sealed storage containers within the house. This enables them to provide a higher capacity of hot water as compared to combi boilers.

They also take up less space because their only external component is the hot water storage tank or cylinder. This means they are easier to install, service, and maintain.

Open Vent Boilers

Open vent boilers are more commonly found in older buildings. They provide hot water and heating through two water tanks, a cold-water storage tank that feeds a hot water storage cylinder. It also comprises a separate pump and works in an open vent system (hence the name).


Things to Note

In many homes, installation of combi boilers and system boilers often requires the replacement of the pipework systems which normally can’t handle the high pressure. However, open vent boilers are perfect for lower pressures and will usually not require costly replacements of the existing pipework systems already in place in many homes. And since they can supply a lot of hot water at once, they are perfect for homes with multiple bathrooms or several outlets that may simultaneously require hot water.


The cost of installation and replacement of all heating systems varies widely and depends on several factors including the size of your home, the age your heating networks and much more. Contact WD Heating and Plumbing today and let’s see what we can do for you.

No matter the type of boiler you have installed or wish to install, WD heating and Plumbing have you covered. We work on maintenance and installation year-round throughout the greater Dublin area.

Contact the team direct on 085 153 2068 or email: info@wdplumbingandheating.ie for a complimentary quotation.