How to Install New Furnace?

How to Install New Furnace

Furnace is one among the most imperative elements in the winter season. But between purchasing a new system and having it installed professionally by Heating Everett, it does not take long before costs add up. Fortunately, you can save money by setting up the furnace yourself. Here’s a guide on how cab you install a furnace yourself.

Prep New System

The very first thing that you should do when installing new furnace is unboxing the system and taking the inventory of parts. The system should turn with setup guide which will tell you all you should know about installation procedure. Make sure that you have all the necessary tools and required components prior to moving forward. Ensure that furnace wasn’t damaged during its delivery and everything looks to be in proper working order.

Determine Location Of Air Duct

Prior to installing the furnace, find out where return air duct tends to be placed. This either will be on side of unit or on bottom. The dimension of the ductwork must be marked on side of furnace. Based on where furnace is located, you may have to buy an elbow or added piping to link the furnace to ductwork.

Decide on The Furnace Placement

After you’ve ductwork figured out, then you can place furnace in its decided location. The furnace must be installed on the rubber pads to assist decrease noise. If you’re installing the system in a basement, then it must be raised 4 inch from the ground. In case the furnace is located in the attic, then it must be equipped with drain pan.

Use Condensation Drain

Each furnace is well equipped with condensation drain. The system should be sloped slightly towards drain to avoid the water buildup. You wish for furnace as levelled as possible, therefore don’t slope it a lot in direction of drain.

Connect Pipes

After furnace is in the right place, connect system to your house’s ductwork. All the connections must be sealed tightly with sealant or foil tape. The furnace must also come with inlet pipes and PVC exhaust. When installing the pipes, ensure that they are glued in place properly and are sloped to the furnace. This slope should be nearly ¼ inches for each 4 feet.

Connect The Gas Line

Before linking gas line, it’s recommended to install drip leg in form of tee. This tee features capped nipple on bottom, which assists trap sediment. Gas line is linked in top of tee and runs right into the furnace. After gas line is linked, double check for leakages by using gas detector. For security reasons, don’t proceed with installation until all the leaks have been found and addressed. It’s also a great idea to install carbon monoxide detector inside the furnace room for future leakages.

Turn On Power

With all the pipes connected, now it’s time to hook the electrical components up. Most of the furnaces come with 2 kinds of electrical connections: low and regular voltage. Low voltage one links to shutoff switch while regular voltage links to mains. Follow instructions in manual when setting low voltage switch up. Double check that all is hooked up properly before turning the furnace on.

Run Your Furnace

If furnace turns on as well as all is installed properly, it is now time to run unit through a cycle. While furnace is running, you should check drainage pipe for leakages. You must also compare temperature reading from outlet air and temperature rise and ensure they’re in line with specs. Lastly, check for any gas leakages.


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