Each of the fan blades in the squirrel cage will have a scoop like shape to them. This scoop is what collects the air and throws it out of the blower housing. So this scoop should be the leading edge if the fan is turning in the proper direction.
The furnace filter goes into the furnace with the airflow arrow pointing towards the blower motor.
The filter should be placed in the furnace with the airflow direction indicated on the filter facing towards the blower motor.
Air flows in a furnace from the return ducts into the furnace, where it is heated and then pushed out through the supply ducts to heat the home.
The filter in the furnace should be placed with the airflow arrow pointing towards the direction of the airflow, typically facing towards the blower motor.
The air flows into the furnace through the return ducts, gets heated by the furnace, and then flows out through the supply ducts to heat the home.
To change a furnace filter, first turn off the furnace. Locate the filter, usually near the air intake. Remove the old filter and note the size. Insert the new filter, making sure it's facing the right way. Secure it in place and turn the furnace back on.
Air flows in a furnace system from the return ducts, through the furnace unit where it is heated, and then out through the supply ducts to heat the home.
The air filter in a furnace should be installed with the arrows on the filter pointing towards the direction of the airflow, typically towards the blower motor.
clockwise
The air filter in a furnace should be installed with the arrows on the filter pointing towards the direction of airflow, typically facing towards the blower motor.
When looking to replace your home furnace you should get no less than three quotes or estimates. That way you can choose the one that best fits your home needs and financial needs.
Yes, you can melt the heat exchanger and start a fire that way