How do you deal with an oversized furnace?

Dealing With an Oversized HVAC System

  1. Mix Warm Air Into the HVAC System. An HVAC system doesn’t modulate the temperature that it puts out. …
  2. Get a Smart Thermostat. A smart thermostat will learn about your HVAC system and how to operate it more efficiently. …
  3. Install a Dehumidifier. …
  4. Replace Your HVAC System.

How do I make my furnace run less?

These seven simple tips will ensure your furnace isn’t using too much energy — which will save you cash.

  1. Change the air filter. …
  2. Check and clean the vents. …
  3. Clean out the furnace. …
  4. Rethink the thermostat. …
  5. Put a sweater on. …
  6. Get a tune-up. …
  7. Upgrade your equipment.

Is it better to undersize or oversize a furnace?

It’s better to be a little undersized than oversized, You’ll get a little longer run time, but it’s better than shortcycling.

How do I lower the pressure on my gas furnace?

At this time, you can start the furnace and make your adjustments by turning the gas pressure adjustment screw clockwise to increase the pressure or counterclockwise to decrease the pressure. If you have a two-stage furnace, you will have to set gas pressure on both the low-fire and high-fire operation.

How do I know if my furnace is too big?

Take note of these signs!

  1. Short Cycling. Does your furnace turn on and off every now and then? …
  2. Temperature Imbalances. A furnace that’s too big for your home can cause temperature inconsistencies. …
  3. Unnecessary High Heating Costs. …
  4. Oversized Furnaces are Too Noisy. …
  5. Mold & Humidity Issues.

How do you fix an oversized HVAC?

How to Correct an Oversized Air Conditioner

  1. Buy a stand-alone dehumidifier. If your AC system is too big for your home but you can’t afford to invest in a new one then a stand-alone dehumidifier may be a good choice for you. …
  2. Talk to a professional about adding ductwork. …
  3. Replace the air conditioner.

Why does my furnace run so much?

A dirty furnace filter is the number one reason we’ve found that furnaces run constantly. The air filter captures dust, pet hair, and debris that could damage the furnace and keeps it from getting to the heat exchanger. If the filter is dirty, it restricts airflow across the heat exchanger, which causes it to overheat!

Do high efficiency furnaces run more often?

The simple answer is “yes” – but for a good reason! High efficiency furnaces run more often to save energy and reduce your utility bills. By running more consistently, the furnace can operate at an even pace throughout the day rather than working hard in spurts.

How much should your furnace run?

With all that being said, if there are no extreme factors involved, the average run time for a furnace is 10-15 minutes per cycle. Your furnace may need to run two to three times an hour to maintain your desired temperature if your home has average insulation.

What happens if furnace gas pressure is too high?

High gas pressure can be just as bad for your furnace. That’s because it greatly increases the risk of furnace overheating. When this happens, all manner of internal components may become damaged by the excessive heat.

Where is the pilot adjustment screw?

Quote from the video:
Quote from Youtube video: Now I will show you how to adjust the pilot flame the adjustment screw of the pilot flame is behind this cover we can press through this cover. And find the adjustment screw.

How do I adjust my furnace?

All you will need to do is to twist the adjustment screw of the flame till the flame goes from one and half inches to two inches, which is about 4 to 5 centimeters high. Look for the adjustment screw on the pilot assembly close to the gas valve if the control valve has this adjustment feature.

Can you adjust heat on furnace?

Whether your furnace is electric, gas or oil matters not, and you have a non-digital thermostat and with the cover off you can see a small dial inside that reads “longer cycles” you can make some simple adjustments. Turn the dial counter clockwise for longer cycles for furnace on time and clockwise for shorter cycles.

How do you calibrate a gas furnace?

There are 2 ways in which we can set up a calibration method for a furnace, one is through direct simulation of a signal to its indicator and the second is through actual temperature measurement. The first set up is through a direct simulation of a signal.

What color should the flame be in my furnace?


The burner flames from your natural gas furnace should look blue or almost completely blue. A healthy natural gas furnace flame is characterized by a roaring blue flame with a light blue triangle in its center. There may be a tiny tip of yellow.

What is the difference between a blue flame and a yellow flame?

Blue and Yellow Flame

As it relates to hydrocarbon gases, blue flame is indicative of complete combustion whilst a yellow flame indicates incomplete combustion. An LPG blue flame also burns hotter, at around 1,980°C, vs about 1,000°C for a yellow flame.

What is the difference between a blue flame and an orange flame?

Blue Flames Indicate Temperatures of 2,300 to 3,000 Degrees

Blue flames burn hotter than orange flames, with temperatures reaching up to 3,000 degrees Fahrenheit. Along with the complete burning of carbon, this is why gas-burning fires typically have a blue flame.

What causes orange flame in furnace?

If you have a yellow, orange, or red burner flame, this usually means that your burner is not receiving enough air for complete combustion. Besides wasted gas, higher energy bills, and more soot, the main danger of improper combustion is the increased amount of carbon monoxide (CO) produced by the combustion process.

How do you fix a yellow flame on a furnace?

Dirt in the burner is the most common cause of a yellow flame, and it prevents the gas and air from mixing properly. A call to a technician for cleaning and evaluation is needed to fix that problem.

Why is my furnace flame yellow?

Yellow flames signify the generation of carbon monoxide, an odorless, colorless, tasteless gas that can produce headaches, nausea, hallucinations and, in severe cases, blackouts, in addition to being a symptom of inefficient combustion. Yellow and orange flames provide the least amount of heat.