411homerepair.com

Latest Articles

How to Protect Your Furniture from Sun Damage

Having large windows that let in a lot of sunlight can be nice. It can feel good enjoying the natural light when you are indoors. While it may feel...

on Feb 23, 2017

Build a Custom Home or Renovate Your Existing House?

There is a difficult choice to be made between building the custom dream home you’ve always wanted or renovating your current residence, the...

on Feb 22, 2017

How to Create a Great Office Space

Moving to a new office space can be an exciting time for any business. When planning a new space, you have an opportunity to create a better work...

on Feb 22, 2017

How to Measure a Window for Blinds

When it comes to getting a new set of window blinds, you have a lot to consider if you want to get the right set. Whether you decide to go with...

on Feb 22, 2017

5 Features that Will Sell Your Home Faster

A lot of people focus on things like return on investment (ROI) when it comes to updating their homes before selling. And with some returns only...

on Feb 21, 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

How to Source Cheap Kitchen Cabinets Online

If you're looking to remodel your kitchen on a limited budget then RTA (ready to assemble) kitchen cabinets make sense. You buy kitchen cabinets...

Kitchen / Bathrooms

Tips for Selecting an Agent or Realtor

Most of the articles Ive seen on the Internet have been written by Realtors or agents trying to sell their services. These notes are a combination...

Real Estate / Finance

Effective Stain Removal For Carpet Cleaning

We all love carpets and these are a huge part of interior design. The problem is that all carpets are susceptible when referring to dirt, mainly...

Cleaning / Maintenance

Electric Floor Heating Mats

The radiant floor heating mats are sheets that can be placed indoors as well as outdoors for purpose of generating warmness or heat. These mats are...

Floors / Tile / Hardwood

Aluminium or Iron – Is One A Better Options for Metal Garden Furniture

While several financial studies within the UK have confirmed the increase in sales of metal garden furniture ever since a decade or so ago, it...

Garden / Landscaping

Actions

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