Polar Bear Air Conditioning & Heating Inc Blog : Archive for the ‘Gas Heaters’ Category

Problems That May Occur with the Boiler Circulator Pump

Thursday, January 29th, 2015

Hot water boiler systems need a little help pushing the hot water through the piping to heat your home. This help comes from small pumps called circulator pumps that are soldered into the pipes, and thus are part of the piping. Without the help of these pumps, the hot water would never reach your heating outlet.

How Does the Circulator Work?

Circulators use a small amount of electricity and gravity to push the water through your system. Inside the pump is a small motor; this motor turns a small wheel called an impeller. The impeller looks and functions like a miniature water wheel, and it is the component responsible for grabbing the water in the pipe and pushing it through to the other side at a high rate of speed. Rubber seals inside the pump keep water from leaking out of the pump at the points where it has been soldered into the pipe.

Common Circulator Problems

Circulator pumps are hardy little components, but they can break. Common repairs may be:

  • Broken or worn seals – the rubber seals inside the pump can age, crack or split, which can result in leaking from the pump. Water on the outside metal can lead to the development of rust, so if you see that a circulator pump on your boiler system is leaking, have it repaired as soon as possible.
  • Problems with the circulator relay switch – the motor is attached to a relay switch that sends power to it so it can operate; if the switch becomes faulty, the motor may not receive any power or receive power intermittently.
  • Circulator won’t turn on – reasons a circulator won’t turn on include issues with your thermostat, unequal settings between the circulator’s aquastat and the boiler’s thermostat and a dead or frozen pump motor.
  • Circulator runs but heat is low – this can be due to a broken or damaged impeller inside the pump.

Sometimes circulator pumps can be repaired, but other times they may need to be replaced.

The best way to handle any kind of heating repair to your boiler is to call the experts at Polar Bear Air Conditioning & Heating Inc., and schedule an appointment for heating services in Alexandria, VA.

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How Electric Ignition Works on a Gas Furnace

Tuesday, February 25th, 2014

If you installed a gas furnace for your heating in Washington, DC, instead of an electric one, it was probably because of the savings you receive using natural gas, a more economical power source than electricity. However, if you have a modern gas furnace, it still needs a small amount of electricity to run. The key electrical system in a gas furnace is the electric ignition, which we’ll examine in detail.

The two types of electronic ignition systems

Gas furnaces originally used standing pilot lights to ignite gas burners (and you’ll still find older models that use pilot lights). However, because standing pilot lights consume extra power to stay lit, they reduce furnace efficiency. The new electric ignition systems require only a small amount of electricity and do run continually. This is one of the reasons that new furnaces have higher efficiency ratings.

There are two types of electric ignition systems in gas furnaces:

  1. Furnace intermittent pilots – This system does use a pilot light; however, the pilot light comes on only when needed and an electric spark activates it. When the thermostat calls for heat, high voltage sent through the igniter causes a spark that ignites the pilot, and it supplies sufficient heat to turn on the burners. The pilot light shuts off when the burners do.
  2. Hot surface igniters  This is the more common system, and requires no pilot light at all because the ignition generates enough heat to ignite the burners. They are made from silicon nitride or silicon carbide and operate similar to light bulbs: current passes through them and causes their surface to turn hot. A sensor detects this heat, and then opens the gas valve to send natural gas to the burners. The heat from the igniter activates the gas jets. These igniters are durable and dependable, although they will need replacement at some point during the furnace’s lifetime. Make sure you have regular maintenance for your gas furnace so your technician will know when to change the igniter.

Maintenance Is Key

Gas furnaces are safer today than ever before, and it is partially thanks to electric igniters. But don’t let your furnace go without yearly maintenance: keeping those igniters working their best is how you know your furnace is working its best. Contact Polar Bear Air Conditioning & Heating Inc. to sign up for our maintenance program for your heating in Washington, DC.

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The Benefits of Oil to Gas Boiler Conversions

Monday, January 7th, 2013

Oil to Gas Conversion | Washington D.C. | Polar Bear Air Conditoning & HeatingDo you want all the benefits of a gas boiler without the high replacement cost? Have you considered an oil to has conversion? Polar Bear Air Conditioning & Heating, Inc. offer oil to gas boiler conversion for customers in the Washington, D.C. area.

Here are reasons customers would want to convert from an oil boiler to a gas boiler:

1. Homeowners will save a lot of money on fuel bills.

2. The system will pay for itself through energy savings in just a few years.

3. Natural gas is a much cleaner burning fossil fuel, which is better for the environment.

4. Home heating oil can be smelly, but natural gas is odorless.

5. Homes with natural gas heating systems have higher resale value.

Call Polar Bear today to find out if your existing oil boiler can be converted to natural gas. The switch can save you money on fuel and natural gas is much better for the environment. Natural gas can also be piped directly to your home, so you never have to worry about fuel deliveries again! Let the expert team at Polar Bear Air Conditioning & Heating, Inc. take care of your oil to gas conversion, increase the potential value of your home, and help you save money on energy cost!

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