Alliance Energy Source is Serving GTA Since 1999

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Lennox logo



The quietest and most efficient furnace you can buy

Dave Lennox Signature® Collection models come with a 10-Year Limited Warranty on covered components. Furnace heat exchangers offer either 20-Year warranty


Price: Call For Details 

Monthly about : $69.00



Lennox logo



High-efficiency, variable-speed gas furnace

Warranty on furnace heat exchanger is 20 years or lifetime depending on model. A 10-Year Extended Limited Warranty is available with product registration.


Price: Call For Details 

Monthly about : $59.00



Lennox Furnace

Lennox logo



Variable-speed gas furnace that heats the home evenly and efficiently

 96% Efficincey

 Warranty on furnace heat exchanger is 20 years A 10-Year Extended Limited Warranty available with product registration


Price: Call For Details

Monthly about : $55.00     



Lennox Furnace

Lennox logo



Single-stage, 96% fuel-efficient gas furnace with Power Saver™ constant-torque motor design

Dave Lennox Signature® Collection models come with a 10-Year Limited Warranty on 

covered components. Furnace heat exchangers offer either 20-Year warranty for t


Price: Call For Details

Monthly about : $49.00   


    First Class Installation & Service for the Most Reliable Furnace Line-up in the Industry

Fast And Reliable

we are here for any emergency or non, you are a call away from being hvac problem free


we are serving since 1999, there is nothing can stop us for learning and gaining


we are concidered as one of high rated, customer choice award wining hvac company


with more than 12000 new installation and service repairsatisfied client


Our price is fair and competetive, we provide value and just an hvac

common furnace problems

  Whether you are installing a system in a new home or replacing an existing heating or cooling system, Alliance is here to help. We offer industry leading products with industry leading warranties. Our staff are trained to identify your needs and get you the best heating or air conditioning system for your home

How long does it take A Furnace replacement?

The amount of time it takes to replace a furnace depends on many different factors, including the skill of the technicians, the size of your home and the type of furnace you are planning to replace, but it usually takes between 4 to 10 hours. Please reach out to learn more about the variables that will increase furnace installation time such as home layout, etc.



1Furnace Life
Typically, a furnace with regular preventative maintenance should last anywhere between 15 to 20 years. This means there’s a good chance you’ll need a new furnace at least once in your life. So if you have reached that milestone of needing a new furnace, please keep reading to learn about other preparations and tips for getting the most out of your new furnace installation. As always, a professional can always evaluate your needs, the size of your home and provide you with best options.
2Furnace Installation
There are many do-it-yourself projects But, FURNACE INSTALLATION … should not be one of them. Furnace installation is a complicated endeavor, and is not something that should be attempted as a do-it-yourself project. It might be tempting to save on the installation fee, but furnaces contain several complicated components including electrical, ducting, plumbing, and gas, that require the installation expertise and specialized tools of a qualified HVAC professional. However, if you really want to read up and find out how it works, see below.
3Select your Heating
Once you have chosen your furnace, you’ll need to select a suitable location for it. Selecting the proper space depends on the type of furnace and plans for the remainder of the space. All furnaces have specifications for installation included with the unit. Therefore, each unit outlines the requirements for clearance and ventilation. Prior to starting the furnace installation process, clean the area of any dust or debris. For furnace installation in the basement, place the unit on blocks at least 4 inches above ground, which protects against flooding. If your furnace did not come with rubber isolation pads, purchase some pads, which helps reduce noise when the furnace is running. Unpackage your new furnace, removing all loose parts and instructions.
4Furnace Installation Proccess
1- where your duct and drain will run. The return duct can be on the side or bottom of the unit, and requires a hole be cut into the unit. Most come pre-marked with the appropriate size opening needed. Next, decide which side the condensate drain will run. Place your furnace into position, nearly level with a slight slope towards the condense drain exit. 2- ducting system. Upon correctly and adequately positioning the furnace unit, connect it to your home’s ducting system. Ensure you’ve sealed any connection with a metal foil tape or a duct sealant — do NOT use duct tape for this step as it will not last. 3- vent pipes. Next, install intake and exhaust pipes — 4- gas supply. Reconnect gas piping back 5- Connect electrical supply. There are generally two connections on a furnace, a low and line voltage. Be especially mindful of the polarity during this step. Before starting your new furnace for the first time, verify your wiring with the instruction manual. 6- Connect condensate drain. Ty via a hose to a drain hole in your basement’s floor. 7-Check your work. The final step in furnace installation requires turning the unit on and running through a heating cycle to ensure temperature outputs are where they should be according to the manufacturer. Give yourself about an hour’s worth of runtime to check this. You should also double check for any gas leaks, and to ensure the condensate drain is draining properly. Furnace installation remains a complicated undertaking with many complex steps, which requires qualified HVAC professionals in Ontario. The steps listed above simply provide homeowners with an idea of challenges with furnace installation.
5Furnace Prices
[Lennox - Modulating - DC Motor - Efficiency 98% - $4500 to $5900] [Lennox - Two Stage - DC Motor - Efficiency 96% - $3200 to $4900] [Lennox - One Stage - ECM Motor - Efficiency 96% - $3100 to $3900] [Goodman - Two Stage - DC Motor - Efficiency 96% - $2950 to $3900] [Lennox - Two Stage - DC Motor - Efficiency 96% - $3000 to $4900] [Lennox - Two Stage - DC Motor - Efficiency 96% - $4500 to $5900] Providing the optimal combination of energy efficiency and comfortable heating, Lennox furnaces will save you more money while also doing their part to help the environment. It doesn’t hurt to consider a furnace with an Annual Fuel Utilization Efficiency, It indicates the percentage of the energy that is used to actually create heat. A higher rating indicates that the furnace is more energy efficient and will save you more money. Your furnace should also be quiet, reliable, and easy to operate. Whether you are using an electric furnace, an oil one, or even an innovative gas version, there’s a furnace that works for you. At Alliance Energy source, we stand behind our product and will only recommend the product suited to your needs. If you’re looking for a full furnace replacement, we will work with other existing components of your home’s heating and cooling system including your existing humidifiers, as we well as any air quality equipment. At the end, we will provide you with an unconditional furnace warranty backed up with service expertise.