411homerepair.com

Latest Articles

The Best Glass Garage Doors for Restaurants

Restaurants have different sizes and features. But so do garage doors. When they meet each other, they make the perfect pair for all the right...

on Nov 17, 2017

How to Pick the Right Refrigerator for Your Kitchen

Whether you love cooking or just enjoy being in the kitchen to grab a quick bite out of the fridge; there’s no denying the importance your...

on Nov 16, 2017

How to Repair Your Forklift Battery

Although in principle forklift batteries are similar to car batteries when it comes down to repairing them the process is very different. In...

on Nov 15, 2017

Why Sectional Doors are the Best Garage Door Option

One would think that an overhead garage door, which consists of many parts, and needs good care to remain safe will not t be so popular. But the...

on Nov 15, 2017

Neighborhood Garage Door Service Expert Gives 7 Important Security Tips

Usually, having a garage offers extra security for your home and your important possessions such as your vehicles. But this advantage can become a...

on Nov 15, 2017

Gas Furnace Do's and Don't

by Guest on May 5, 2012

Gas Furnace Do's

  • Change the Air Filter Regularly
  • Check the fan belt to proper tension and wear
  • Check the fresh air intake grill
  • Properly service the furnace before the start of the heating season

Don't

  • If the spill switch trips do not bypass the safely control correct the venting problem.
  • Over tighten the fan belts, belt should be just tight enough not to slip.
  • Adjust the gas regulator pressure setting
  • Block off fresh air intakes. (If the furnace can't get it's own air, it will take yours)

What is Proper Service

Furnace Temperature Rise: Most Residential furnaces are designed to work with a 40°F -60°F Temperature Rise (Supply Air Temperature - Return Air Temperature ), check the name plate of your furnace for it's design temperature.

Stack Temperature: The temperature of the flue 18" from the furnace should be a least 225°F. If it is lower then this then the flue gas will drop below the dew point more it vents from the top of the chimney. This will cause condensation in the chimney. This moisture is very acidic and will quickly damage the chimney.

Gas Manifold Pressure: The pressure on the gas manifold determines how much fuel your furnace will burn. Even a slight change from the design pressure, can have a big effect on the performance of the furnace. This should only be tested by a licensed gas fitter, and at the original startup of the furnace. This test can also be done by clocking the gas meter, with only the furnace burners running.

Chimney Draft: The draft up the chimney should be at least -0.02" w.c. with all gas appliances running, all exhaust fans running. And all the windows and doors closed to the house. If the Draft is less then -0.02"w.c. additional Fresh air must be brought into the house. If the draft is greater than -0.05" can reduce the appliance efficiency by allowing the flue gases to pass to quickly through the heat exchanger.

CO Test exhaust: Test the flue gas for Carbon Monoxide. A properly setup burner should produce less than 10 PPM., high efficacy furnace will often produce more. If more than 50 PPM then the burners should be removed, cleaned and setup, If greater than 300 PPM, repairs must be done ASAP. If higher than 500 PPM the furnace must be shut down until repairs are made.

Visual Inspection of the heat exchanger: Visually check the interior and exterior of the heat exchanger wear possible. Most of the heat exchanger is hidden from view, but the area that can be seen is a good indicator of the rest of the heat exchanger. Older or suspicions heat exchanger can be tested by smoke, or sulfur or cutting in an inspection door. If the burner is producing CO then testing the supply air for CO can show a the presents of a crack.

Visual Inspection of the Vent Connector: Check the connector between the furnace and the chimney. Signs of moisture indicate additional problems, On signal walled pipe, try squeezing the vent connector to check for interior rusting, weak pipes should be replaced.

Visual Inspection of the Chimney: If your furnace is connected to a Masonry, then it should be have a metal liner, if not then remove the clean out to check for debris. Visually inspect the exterior of cracks. Check the interior tile liner, if the liner appears cracked then it must be relined. metal Chimney are much more reliable, but if moisture can be seen on the vent connector then the metal chimney should be inspected.

Check blower operation. Check the blower for dirt buildup on the fan blades, wear in the blower and/or motor bearings. Pulley wear and alignment, belt tension and wear. Lubricate when and where required.

Combustion Fan Motor: Check the combustion fan for signs of rusting on the housing, check the for bearing wear on the motor.

Burner Operations: The furnace on a normal call for heat will start the combustion fan, if present, for 30 seconds before trying to light the pilot or main flame. Spark Ignitors should light the pilot after a few sparks, HSI (Hot Surface Ignitor ) will light the main flame directly, standing pilots will light the main flame. After the burner is lit, then the fan should start. 30 to 90 seconds later. The burner and fan should stay on until the thermostat is satisfied. Once the thermostat is satisfied, the burner should stop, and the fan should run until the furnace is cooled down. Once the fan stops it should stay off until the next call for heat.

Random Articles

Commonly Asked Heating and Cooling System Questions

When it comes to heating and air conditioning, there are a multitude of questions that homeowners may have about their systems. This is especially...

Cleaning / Maintenance

Has the Time Come to Revamp Your Family Bathroom?

If your family bathroom is looking a little worse for wear, you might be unsure about revamping it. The problem is that family life is expensive...

Kitchen / Bathrooms

Living Room Remodel: Top Elements to Focus On

For many people, the living room is the most popular room of the house. This room should be comfortable, inviting, and serve as a place for fun and...

Interior Design / Decor

Save the Value of Your Home with Professional Foundation Repair Services

To home owners around the globe, nothing seems to be as problematic as home foundation repairs. In fact, home repair is not only a big problem but...

Hire Contractors / Estimates

Total Plant Health Care (TPHC)

Total Plant Health Care (TPHC) is a holistic approach to the cultural, environmental and human inputs to which our plants are subject....

Garden / Landscaping

Actions

Contact Us | Submit Article | RSS | 411homerepair © 2017