Barrett Heating & Cooling, Inc. has certified technicians to take care of your AC installation near Alton IL.
 
For AC repair in Godfrey IL, like us on Facebook!
For Air Conditioner repair in Bethalto IL, visit us on Google!
Email us any questions about our Air Conditioning repair service in Godfrey IL
 
A Tradition of Service Since 1896
 
Call Barrett Heating & Cooling, Inc. for great AC repair service in Alton IL
Schedule an Appointment
Now Hiring! Apply Here

Understanding Basic Combustion

Understanding Basic Combustion

There's more to a Tune-up than a quick "Once-Over"...

Understanding Basic Combustion


Useful Information on Combustion Efficient Fuel Use

A Definition:

Combustion is the rapid oxidation of a fuel resulting in the release of usable heat and the production of a visible flame

The Combustion Equation:

Natural Gas With Air:

CH4 + 2O2 + 8N2 ----------->

CO2 + 2H2O + 8N2 + 1000 BTU Heat

Examples of Combustion

Perfect Combustion Provides:

The hottest flame
Minimum exhaust volume

Perfect Combustion

Characteristics:

  • All fuel combusted
  • Blue near burner tile
  • Forms a yellow conical flame shape
  • Produces the highest flame temperature
  • Provides the minimum exhaust volume

Lean Combustion

Characteristics:

  • Flue products oxidizing (Free O2)
  • Pale blue color
  • Forms a more conical flame
  • All fuel combusted
  • Flame temperature drops (Heating excess air)

Incomplete Combustion

Characteristics:

  • Air starved or fuel rich
  • Carbon Monoxide and H2 formed
  • Reducing atmosphere
  • Flame color is predominantly yellow color
  • The flame is less defined
  • Flame temperature drops

Optimum Energy Utilization Occurs When Perfect Combustion Ratios Are Maintained

When A Furnace Tune-Up Is Done Right The Technician will have taken time to:

  • Verify proper mix and directed air/fuel supply
  • Confirm that you have stable combustion
  • Check to make sure that the system is venting all the by-products of the exhaust flue gases

A Definition of Combustion Terms

Excess Air Definition:

Air remaining after the fuel has been combusted
-or-
Air supplied in addition to the quantity needed for stoichiometric combustion

Primary & Secondary Air:

Primary Air --

  • Air mixed with the fuel prior to ignition

Secondary Air --

  • Air supplied to the flame after it is ignited

Secondary Air Effects --

  • Imprecise air/fuel ratio control
  • Exhaust volume increases
  • Fuel rate rises
  • Less available heat
 
Company Information
Address:   500 Belle Street • Alton, IL 62002
Phone:      (618) 465-3731
Fax:          (618) 465-3786
Schedule Service
Service Area
 
Payment Options
For AC in Alton IL, we accept most major credit cards.
Your Air Conditioner replacement installation in Godfrey IL becomes affordable with our financing program.
Save money on your next Air Conditioning installation in Bethalto IL.
Financing Options
 
Send Us a Message
  |   Email Us   |   Schedule Service   |   Ask a Tech   |   Maintenance   |   Privacy Policy
  |   Email Us   |   Schedule Service
Ask a Tech   |   Maintenance   |   Privacy Policy