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Better Know When To Switch From A Heat Pump To A Furnace

Better Know When To Switch From A Heat Pump To A Furnace

Heat pumps and furnaces both regulate the air in the house to provide warmth, but they work in different ways. We have conducted extensive research to assist you in determining the appropriate temperature to switch from heat to furnace.

When a dual heating system is used, the heat pumps switch to the furnace operating unit when the temperature falls below 32 degrees Fahrenheit.

Both heating systems are extremely efficient and durable. Continue reading to learn more about heating systems and when it is appropriate to switch from one to the other.

Heat Pump Heating

Better Know When To Switch From A Heat Pump To A Furnace

Heat pumps and furnaces are heating systems that are installed in homes to regulate heat and warm temperatures. Using a heat pump allows you to keep your room at a comfortable temperature. Its purpose is to move thermal energy from one location to another.

A heat pump is very efficient and saves energy because it does not require much electricity to operate. The basic components of a heat pump allow it to function properly. Both the outdoor and indoor units. These two units are also made up of different subunits. Here are the components of a heating system and how they work.

Outside Unit
The outdoor unit of a heating pump is made up of a coil and a fan. The coil can serve two purposes. When in cooling mode, it acts as a condenser; when in heating mode, it acts as an evaporator. To aid heat exchange, the fan blows air from outside over the coil.

Indoor Unit
Like the outdoor unit, the indoor unit, also known as the air handler unit, has a coil and a fan. The difference is that, unlike the outdoor unit, the coil on the indoor unit can function as both an evaporator and a condenser when in cooling mode.

The fan moves air across the coil and through the ducts of the house.

The refrigerant absorbs and rejects heat as it circulates throughout the heat pump system.

The compressor exerts pressure on the refrigerant, transporting it throughout the system.

Reversing Valve
By reversing the refrigerant flow, this component of a heat pump system allows the system to operate in the opposite direction and switch between heating and cooling.

Expansion Valve
The expansion valve acts as a measuring or metering device, adjusting the flow of refrigerant through the system and allowing the pressure and temperature of the refrigerant to be reduced.

How Does A Heat Pump Operate?

A heat pump in heating mode functions similarly to a heat pump in cooling mode. The reversing valve, on the other hand, alters the flow of the refrigerant.

The heating source becomes the outside air, and the heat energy is discharged within the house as a result of the reversal. The exterior coil now serves as an evaporator, while the indoor coil now serves as a condenser.

The frigid liquid refrigerant converts heat energy from the outdoor unit to cold gas. By applying pressure, this cold gas is converted into hot gas. The hot gas in the interior unit is cooled by passing air, which heats the room.

When Should You Switch From A Heat Pump To A Furnace?

Better Know When To Switch From A Heat Pump To A Furnace

If you have a hybrid heating system that includes a furnace and a heat pump, the heating system in the heat pump will typically operate when the temperature falls below 32 degrees Fahrenheit. However, if the temperature falls below that level, the gas furnace will begin to operate. Set the thermostats to emergency heat mode to prevent the heat pump from operating.

Using A Furnace To Heat
During cold weather, many people rely on a central furnace to keep them warm. A furnace works by directing hot air through ducts to air registers or grills located throughout the home.

A furnace can be powered by electricity, natural gas, or fuel oil. The operation of a furnace varies depending on the model purchased. Furnaces’ heating capacity is measured in British Thermal Units (BTU). Here are the parts of a furnace and how they work together.

Gasoline Burners
Natural gas or propane is used to power gas burners. These gases produce heat, which powers the furnace.

The Fan Motor
Draft inducer fan motors are used to remove noxious air from the room as well as all combustion gases. They are mostly found in industrial furnaces, kilns, and other types of heating equipment.

The fan motor works by sucking air from the burner and directing it outside the house. As a result, furnace combustion consumes less fuel.

Exchanger of Heat
A heat exchanger in a furnace transfers the heat generated by combustion to the room air. Heat exchangers are made of carefully shaped metal tubes and metal shells that allow gas to flow through them. Toxic combustion gases can enter your home if your heat exchanger is damaged.

Fan Blower
The blower fan in a furnace delivers air to the heat exchanger. The warm air is then pumped through the house’s ductwork.

Many furnaces come with a high-speed blower that is pre-programmed when they are installed. Variable-speed furnaces consume less energy.

The vent collects and transports the waste combustion gases used to generate heat outside of the home.

A thermostat measures the temperature of a room, compares it to a setpoint (the desired temperature), and then cycles the heating or cooling equipment on and off to maintain the desired temperature.

What Is The Difference Between A Heat Pump And A Furnace?

Better Know When To Switch From A Heat Pump To A Furnace

We rely on our home heating systems to keep us warm during the fall and winter seasons when the weather turns cold.

So, what is the difference between a heat pump and a furnace, and which do you believe will be the most suitable for you? Here are the distinctions.

Energy Source
A furnace produces heat by burning fuel or natural gas, and some are even powered by electricity, whereas a heat pump does not. Instead, it transfers heat from the outside air to the inside using electricity and a refrigerant.

When set to heat, it acts as a reverse air conditioner. Because a heat pump functions as an air conditioner, you can save money on one.

While both a heat pump and a furnace will require some regular maintenance, the maintenance requirements of a furnace are lower than those of a heat pump. As a result, the long-term maintenance costs of your heat pump will be higher.

A well-maintained furnace can last for up to 25 years or more. A heat pump heater, on the other hand, will last closer to 15 years if properly maintained. As a result, in most cases, the estimated lifespan of a furnace is greater than that of a heat pump.

Cost Of Installation
One of the first concerns you may have when comparing a heat pump to a furnace is which is more expensive to install and operate.

If you have direct access to natural gas, a furnace may be less expensive.

It will be more expensive to install a furnace if you do not have natural gas. If all other factors are equal, a heat pump is usually less expensive to install and is a better choice if your home does not have a gas line installed.

Is It Possible To Switch From Heat Pumps To Furnaces?

Heat pumps work perfectly in some climates, but when the temperature drops, they may not be as effective at heating the home. Furnace heat systems are a better option than heat pumps because they are less expensive and work better in colder temperatures.

Which Is Less Expensive To Run, Heat Or Furnace?

A heat pump is generally less expensive to operate than a furnace, but installing one may be more expensive.

What Is The Freezing Point For A Heat Pump?

Heat pumps lose efficiency when the temperature outside falls between 25 and 40 degrees Fahrenheit. A heat pump works well when the temperature is above 40 degrees.


A heat pump or furnace is an excellent choice for your home’s heating system. If you use both, keep in mind that as the temperature changes, one may be more efficient than the other. Check out these related articles for more information on heat pumps and furnaces:

Better Know When To Switch From A Heat Pump To A Furnace

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