Converting Your Heating System
to Natural Gas
Important Numbers…
Environmental Systems Associates
(410) 381-7991
BGE Marketing & Energy Services
(800) 786-2000
Howard County Inspections
(410) 313-1840
Natural gas is a smart energy choice. Natural gas is a clean, efficient, inexpensive fuel that can keep you warm and comfortable on cold days.
- Natural gas is a cleaner fuel. When you consider the fact that in the United States, most electricity is produced by burning coal or other fossil fuels, a natural gas home emits up to 50% fewer carbon emissions than an all-electric home.
- Natural gas is more efficient to deliver to your home. Only 30% of the energy used in producing electricity actually reaches your home, whereas up to 90% of the natural gas that is produced is delivered as potential energy to your home.
- Natural gas in our area currently costs about 50% less than electricity per BTu of heat. Electric heat pumps operate very efficiently at moderate outdoor temperatures. However, as temperatures approach freezing, they lose efficiency. At around 40º the back up resistance heat starts cycling on. As the temperature decreases, the heat pump system relies increasingly on resistance heating to warm your home. Heat produced by electricity costs twice as much as heat produced by natural gas.
- Natural gas furnaces produce greater comfort. A natural gas furnace produces air that is up to 25º warmer than the air from an electric heat pump system.
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The final cost to convert to gas depends upon the cost to run the gas lines to your home, the cost to install the piping inside your home, and the cost of gas-fueled equipment.
- The charge by the utility company to run the gas line from the street to your home. Depending upon the distance from the street to your house, the cost could be anywhere between $400 to $2000.
- The cost to run the gas piping inside your home. Expect to pay about $500 for the piping to your new furnace.
- The increased cost of gas-fueled equipment. You can expect to pay an additional $1000 to $2000 for a gas furnace compared to an electric air handler for a heat pump system.
Of course, you probably would want to consider converting your other appliances like your stove and water heater to gas also.
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The Decision to Convert to Gas
Both economic and comfort issues influence the decision to convert to natural gas.
It is sometimes difficult to answer the economic issues as the price of natural gas versus electricity are difficult to calculate and future energy prices impossible to predict. There are also the questions of how long it will take you to recover your initial costs and how long you expect to remain in your present home.
However, most people would agree that heating with natural gas, which has higher output temperatures, offers improved comfort over many of today's heat pump systems.
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1. Determine if gas is available at your address.
- Regardless of your reasons for wanting to convert, the first step is always the same—ensure that natural gas is available at your address.
- With our extensive experience in gas conversions in Howard County, we can often tell you over the phone if it is available in your neighborhood. You may also contact BGE's Marketing and Energy Services Division (1-800-786-2000).
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2. Obtain a site evaluation from a licensed HVAC contractor.
- The second step is to get a free on-site evaluation from a licensed HVAC contractor. Usually, the question is not as simple as "Can we get gas to your new appliance?" There are installation requirements from the manufacturer and the local Building Code officials that may make your conversion impractical.
- After a site visit, we will prepare a written proposal that will include the scope of work (including equipment recommendations) that needs to be done, options to be considered, warranties, and terms of payment.
If there are any questions regarding the proposal, we encourage you to call and ask for clarification. We take pride in being a "No Surprises" company and will complete the work at the agreed upon price.
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3. Obtain the gas piping and equipment installation permits.
- The next step is to obtain permits—our responsibility!
- 4. Apply to BGE for gas service.
- When you are ready to begin the actual installation, you must apply to BGE for gas service. This is your responsibility!
- 5. Install the interior gas piping.
- The installation begins when we install interior gas piping. This process usually takes about two hours.
- 6. Obtain an inspection from the Howard County Inspections Office.
- After the interior piping is completed, we will schedule an inspection with the Howard County Inspections Office.
- You need to be home for this inspection. The inspector will come to check the pressure gauge on the outside of your home and the piping inside.
- The inspector will fax the results of the inspection to BGE.
- 7. Schedule installation of street-to-house gas lines with BGE.
- If the gauge on the outside passes inspection and if BGE has your completed application for gas service on file, they will schedule the installation of the gas piping from the street to the meter connection on your home.
- BGE may request that you be home so they can verify that the interior piping is capped properly.
- BGE will contact you directly to schedule this part of the installation.
- 8. Install the equipment and start the appliances
- After the completion of BGE's work, we will schedule the installation of the new HVAC equipment. While the actual equipment installation usually takes only one day, it may take a longer period of time to get it into our work schedule, so it is important to stay in communication about the progress of all involved parties.
- 9. Obtain final inspection.
- After the installation, we will arrange the final Howard County inspection to certify that all pertinent building codes were met.
- The inspector will need access to the inside of your home for this inspection.
- Inspections are scheduled Monday through Friday between the hours of 9:00 AM and 3:00 PM.
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