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610 Lakeshore Rd East, Mississauga, ON L5G 1J4

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How Boilers Work

Conventional Boiler

Conventional Boilers uses gas or oil to heat up the water. Water is stored in a large tank and it’s heated on a continuous basis. The water is passed through the pipes and through the radiators to heat up the room. Conventional boilers have an efficiency rating of 70-80%.

Combi Boiler or Condensing Boiler

A combi boiler/condensing boiler, has a thermal efficiency rating up to 98%. Unlike a conventional boiler, which only heats the water, a condensing boiler, captures the water vapours in the flue gases and reuses it to give you additional heating energy. This process is referred to as thelatent heat of vaporization.

In a Conventional Boiler, the unused heat is usually exhausted through the chimney. This heat source is wasted. A combi boiler/condensing boiler captures all the heat from the water plus the gases escaping from the chimney. It captures and utilizes it all, to give you additional heat.

Expansion Tank for Combi/Condensing Boiler

The combi boiler/condensing boiler doesn’t use a traditional water tank. The system is based on an on-demand service model, where water is only heated when it’s required, such as when you turn on the hot water tap.

A condensing boiler/combi boiler is considered a closed-sealed system. The closed system doesn’t allow for the extra pressure to be pushed back to the city’s water system. Because of this, most municipalities will require an expansion tank to be installed with a combi heating system.

Benefits of an Expansion Tank

Expansion tanks reduces unnecessary water wastage. In a closed-sealed system, extra pressure will have nowhere to go, except for the fixtures such as your water taps and toilets. The additional pressure may cause your faucets to drip and your toilets to run. With an expansion tank, it gives the water a place to expand, so extra pressure isn’t built up in your water pipes.

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Flexible Financing Options

Financing Available

Explore Green Heating & Air Inc.‘s flexible financing options to ensure your home remains cool and comfortable throughout the year.

Financing Options

Regular HVAC maintenance ensures that your system operates efficiently, extends its lifespan, and helps prevent costly breakdowns. It also improves indoor air quality and ensures that your heating and cooling system is working optimally, providing consistent comfort throughout the year.

Signs that your boiler may need to be replaced include frequent breakdowns, rising energy bills, inconsistent heating, and unusual noises. If your boiler is over 15 years old, it may also be time to consider a replacement, as newer models are more energy-efficient and reliable.

The size of the water heater you need depends on the number of people in your household and your typical water usage. For a family of four, a 50- to 60-gallon tank is usually sufficient. However, if you have a larger family or high water usage, you may need a larger tank or consider a tankless water heater for on-demand hot water.

To improve the energy efficiency of your HVAC system, ensure regular maintenance, replace air filters frequently, seal ducts, and consider upgrading to a programmable thermostat. Additionally, insulating your home and ensuring proper ventilation can help your HVAC system work more efficiently.

Tankless water heaters provide hot water on demand, eliminating the need for a storage tank and reducing energy consumption since they only heat water when needed. They are more compact, have a longer lifespan, and provide an endless supply of hot water, making them an efficient and space-saving option for many homes.

Specializing in maintenance, repairs, and installations, we ensure optimum comfort.
Improve your HVAC system’s performance with our exclusive maintenance plans.
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Customer Reviews
What our customers are saying
Customer Reviews

If you think great customer service is a thing of the past, then you have not worked with Hassan and the team at Green Heating and Air Inc. They did outstanding work in installing a new AC and air handler system in a very tight furnace room serving four floors. The project was done on time with no budget surprises and after installation follow up was something you rarely experience today. Cannot say enough positive things about our experience.

Jim G.

Christmas Eve and our furnace decided to take a holiday. Phoned Green Heating and Air and the technician was here in 20 mins. He completed a repair but warned that we may need a new circuit board. Sure enough the furnace shut down again and when we called back they confirmed they had a board and could install it after midnight. Exactly at midnight our doorbell rang, the circuit board was replaced and we’ve been warm and toasty ever since. Thank you for going above and beyond on Christmas Eve. 100% recommend this company which truly provides 24 hour emergency services.

Janet G.

Hassan and his team completely replaced my boiler and got it up to safety standards in my old home. Hassan addressed every issue we ran into and responded to my calls and messages very quickly! He was very friendly and was patient in answering all my questions. I highly recommend him and his team, and feel confident that I have them to turn to with any issues regarding my heating!

Gianne H.

When my furnace quit this winter the folks from Green were at my house within 30 minutes. They quickly diagnosed the problem and provided a budget friendly quote for a replacement. A crew was there first thing the next morning and had everything running within 2 hours. Hassan, Andre and his crew were very professional.

Benjamin J.

Wow so impressed at how quickly the team at Green Heating & Air responded. We had our heating breakdown one evening and in the middle of winter, it’s never fun sitting in the cold. They arrived early the next morning and was able to fix the issue with our boiler and tank immediately. They were transparent about the price and process, and what products they needed to purchase.

Michelle K.

Hassan is amazing. We have a new build home with a heating system that is terrible. We had an issue and called Hassan who came to fix the issue. While fixing the pump, he told us how terrible the system we had was. He recommended getting a new system. My husband and I agreed.Hassan installed the unit and was a 100% correct. My house is 100% warmer, the hot water is so hot. He is a man who knows exactly what he is talking about. Please listen to him and trust him you won’t be making a mistake.

Aruna K.

Mississauga

610 Lakeshore Rd East
Mississauga, ON L5G 1J4

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Toronto

120 Eglinton Avenue W.
Toronto, ON L6Y 1C9

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Toronto

1373 Bathurst St
Toronto, ON M5R 3H8

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Concord

261 Millway Ave Unit 12
Concord, ON L4K 4K9

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Brampton

23 Harold Street
Brampton, ON L6Y 1C9

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