Are you asking yourself if and why you should install a condensing boiler in your home? Is investing in a new heating system really worth it?

Condensing Boiler: Method of Operation

First off, don't get me wrong : people have a tendency to confuse a boiler with a furnace. So, let’s clear it up: a boiler heats water or uses steam, while a furnace heats existing air and blows it out into air ducts.

Condensing boilers' popularity is growing, especially given their high-energy efficiency and consistent heat distribution for maximum comfort. Their mechanism is not that different from that of conventional models. 

The fundamental principle of a boiler is to burn gas which, thanks to a heat exchanger and its reaction to air, produces carbon dioxide and water in the form of hot steam. As it cools down, this vapour is transformed into liquid water. The energy used in the process is converted to heat your home and generate hot water for use.

The difference with a condensing system is that the steam does not escape through pipes or chimneys. The water generated by the cooling process is recovered and reheated, so the energy is recycled to power the heating system.

Photo: Flickr

Installing a boiler is a rather complex task and often requires the help of a professional. Expect to shell about $3,500 to $12,000 for installation. The price does vary according to the system that is taken out and the one that will be installed in its place. 

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Where to Install the Condensing Boiler?

Boilers are usually located in low-use rooms or in secluded areas, such as a basement, attic, laundry room, or garage. Truth be told, you can install your boiler just about anywhere. However, there are a few standards that must be met.

The room in question will have to reach a minimum height which varies depending on the boiler model. In addition, there are models which are wall-mounted and designed for small spaces, and which cannot be fixed on a thin partition.

Photo: Flickr

Also, make sure that the boiler isn't installed in the same room as an appliance that could alter the airflow, and that the area has adequate ventilation. Choose rooms of 8m³.

Energy Savings 

A condensing boiler can save you up to 15 to 20% on your annual electricity bill, since it recycles about 11% of the energy normally wasted with a non-condensing model. So the investment is indeed worthwhile, provided that you choose a high-performance system, of course.

To maximize your energy savings from your condensing boiler, it is imperative that it be installed on a heating system that allows the condensed water flowing back into the tank to remain at a temperature lower or equal to 55 degrees Celsius. We recommend a system that provides temperature control through access to an exterior sensor.  

Energy Saving Financial Aid Programs

Government agencies as well as power companies have put in place assistance programs to encourage people to adopt energy-efficient or low greenhouse gas emission appliances. It is increasingly important to facilitate the transition to green energy and to lower energy consumption, to protect our planet.

Among these types of incentive programs, Energir offers grants ranging from $900 to $25,000. Subject to certain terms and conditions, the amount awarded varies according to the energy capacity of the appliance you choose.

For example, if you use natural gas instead of certain heating oils, you’ll have a smaller environmental footprint, since the smoke from burning natural gas isn't harmful. It's ideal for LEED projects!

*The assistance awarded differs from one region to the next. Your power provider or heating expert will be able to better inform you on the subject matter.

Condensing Boiler Maintenance

Since the efficiency of the system depends largely on keeping it in good, working condition, you will need to have a professional come out to check up on your condensing boiler annually. They will verify its general condition before cleaning it and perform a more detailed inspection of all the components of your unit and your heating system. The technician will ensure that the settings of the combustion process are optimized to improve efficiency, reduce external losses and ensure your safety. If necessary, they will calculate the carbon monoxide level in the air.

Maintaining your heating equipment, whatever it is, is important to avoid accidents, breakdowns, damages and heat loss. All of which are important, financially, as well as for your health.