4 Things You Should Know About Your Boiler BEFORE You Get It Replaced or Repaired

One of the most stressful things in a modern household is a problem with the boiler. Boiler malfunctions can cost the homeowner thousands in services and damages if they don’t have boiler insurance, bringing anything but stress and financial strain.

Once boiler repair or replacement comes up, that’s usually when homeowners realize that they have no idea about their boiler.

Boiler Breakdown

Before you start making big decisions and looking into boiler repair, the first thing you need to do is collect all the information that you need. We’ve cut down everything that you need to know about your boiler into five sections.


Here are four things you should know about your boiler before you get it replaced or repaired:


  1. What Type Of Boiler Do You Have?

First things first, you need to know what type of boiler you have. Believe it or not, there are tons of different boilers that are used in home heating. There’re steam boilers, hot water boilers, natural gas boilers, oil boilers, and electrical boilers. Is your boiler condensing or non-condensing? It’s essential to know what type of boiler you have to guesstimate the total cost of repairs or replacements accurately.


  1. How Does Your Boiler Work?

To understand your boiler, you must first understand how it works. Depending on what type of boiler you have, the heating process is entirely different.

Here are the differences in the heating process of differing boilers:


  • Steam boiler:

The working process of a steam boiler involves severe heat and boiling water. The water is heated to the boiling point, then it produces steam, which is used to generate power. There are many different types of steam boilers like the water tube boiler, stoker fire boiler, package boiler, and fire tube boilers.


  • Hot water boiler:

A Hot Water Boiler runs very similarly to a steam boiler with the same basic idea. The difference is that a hot water boiler is more energy-efficient than a steam boiler. Because steam boilers use cold or room temperature water, more energy is used to heat the water until it boils.


  • Natural gas boilers:

Natural gas boilers run the same way as hot water and steam boilers, with few differences. Natural gas boilers burn natural or human-made gas that travels throughout the container and heats the water in the device, which triggers a sensor that releases the gas. After the process is done, natural gas boilers have vents that release the gas into the air after use.


  • Oil boilers:

Oil boilers rely on the power of heat and water circulation. Water circulates through the piping and triggers a sensor that sends an electrical current to the oil burner. The oil burner clicks on and pumps oil into holding take then sprays it into a fire chamber where combustion occurs. Hot gases travel through the pipes and heat the water to a higher temperature.


  • Electrical boilers:

They run the same way that every other boiler on this list does, by boiling water which is transferring into energy that heats the home, except that the water is electrically heated rather than through fuel, chemicals, or combustion.


  1. Common Boiler Issues, Causes, and Solutions

Boilers are everywhere! Nearly every residential home and building use boilers for their heating needs. Boilers have so many different working parts that they can sometimes be finicky and victims of small complications.


Here are some common boiler issues and how they’re usually solved:



Common Boiler Issues

Causes and Solutions

Hot water/ no heatingCheck to see if the thermostat is working or if boiler pressure is low.
No heat/ No hot waterCheck that power is being successfully supplied to the boiler.
Leaking boilerStop the water supply, turn off the central heating, and locate the leak. Don’t attempt to repair it yourself.
Kettling boilerDebris build-up can restrict water flow, which overheats the water, causing it to steam and boil inappropriately.



  1. What Kind of Noises is Your Boiler Making?

The status of your boiler can be determined by what type of sound it’s making. If the boiler is running as silently as usual, don’t worry too much! You can quickly diagnose boiler issues by the sound it’s making.



The Noise

Possible Cause

BangingUsually caused by loose pipework or internal component. It can also be loose debris from the heat exchanger. The pump may be failing.
WhistlingCaused by a sludge build-up on the heat exchanger.
ClankingUsually caused by loose pipework or an obstructed boiler fan.
HummingMost likely a loose part of the central heating pump.
GurglingToo much air in pipes causing water blockages. Needs to be bled.


When you have all of the pertinent information, repairing or replacing your boiler is a walk in the park. Make sure to have all the info before you call out a boiler repairman or buy a new boiler! You need to know what type of boiler you own, how it works, what type of noises it’s making, and common boiler issues and solutions.

With all this information, replacing or repairing your boiler has never been easier.

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