4 Types of Furnaces You Should Know
Now that the families have been determined, there are features to each furnace that make them unique from each other. In both families, there are the Single Stage Furnace, Two Stage Furnace, Two Stage Variable Speed Furnace, and Modulating Furnace. There have been other operational mixes, but here’s an overview to keep it simple:
- The Single Stage Furnace: This is the most common type of furnace, and is most likely what you have now. When the thermostat calls for heat, the furnace turns on, the burners ignite, and the fan comes on. When the thermostat is satisfied, the furnace turns off.
- The Two Stage Furnace: When the thermostat calls for heat the furnace turns on, the burners ignite on a low flame, and the fan comes on a low speed. This is when you don’t need the full force of the furnace on milder days. When the thermostat is not satisfied, within a certain period of time, the burners fire to a hotter higher flame and the fan kicks up to a higher speed, for the colder days. With this, you get a more gradual temperature change in the house; the unit is quieter and more efficient. This furnace runs 75% of the time in low fire and fan speed.
- The Two Stage Variable Speed Furnace: Like the two stage furnace described above, except it has a D/C blower motor. This allows the fan motor to constantly turn at a low RPM (spin rate) to mix the air in the house, between every room, so hot air can`t migrate up and cold air won`t fall. This will keep each room within 2 to 3 degrees of each other, for no more than it cost to run a 75 watt light bulb. The continual low fan operation also allows 24 hours a day of air purification threw the air filter. In addition, increase air conditioning comfort while decreasing operational costs by being able to dehumidify the home faster.
- The Modulating Furnace: Like the two stage variable speed furnace described above, except it has more than just two stages of heat. Depending on the manufacturer this may vary in many ways from just additional stages to the most complex of adjusting the output of heat between 35% and 100% in increments of 1%, for comfort that is truly precise. But the best technology always comes at a cost.
Other Factors to Consider
Now that the size, application, families and types have been defined, there are add-ons that can be purchased in addition to furnace installation. Additional upgrades can include humidifiers, whole home ventilation systems, thermostat controls that can be basic to ones that work from smart phones, metal fabrication adjustments, and air flow solutions like bottom feed box returns.
The intangibles also play a part in cost. What is the parts and labor warranty? Is there a maintenance program attached to the furnace installation? Now manufacturers have been more stringent on having maintenance done in order to maintain the warranty. It truly is an investment.
To recap all the data above: A small standard furnace installation can range in the neighborhood or $1,200 to $1,600. In turn, you could expect a large modulating furnace investment to be in the neighborhood of $6,000 to $7000.
Contact Approved Comfort today if you want to stay warm in your home thanks to our high-quality furnace installation!