Is Digital Ignition Just for Electrical Furnaces?

You will have heard about furnaces switching to one thing known as digital ignition. If in case you have a gasoline furnace, you may assume this doesn’t apply to you—in any case, wouldn’t digital ignition solely apply to electrical furnaces?

The key phrase you is perhaps overlooking is ignition, which suggests igniting one thing. Digital furnaces don’t use any kind of combustion or burning to work. As an alternative, they permit electrical voltage to circulation by way of a collection of heating parts, which then heat up by way of electrical resistance. The one furnaces that use digital ignition are those that burn pure gasoline (or much less frequent choices like propane or oil). 

Should you’re interested in how this works and the best way to gentle a gasoline furnace with digital ignition, we’ll clarify beneath. We’ll additionally have a look at why digital ignition is a useful change from standing pilot lights.

How Digital Ignition Works in a Fuel Furnace

For many years, the best way furnaces lit the burners after they got here on was with a standing pilot gentle. A single flame within the furnace burned all through the winter, and when gasoline began to circulation to the burners, this gentle ignited them to start the method of heating the air. 

Then digital ignitions techniques got here alongside that eradicated the necessity to have a frequently burning pilot gentle. There are two several types of digital ignition techniques:

• Sizzling floor ignition: The igniter consists of a heating aspect made from silicon carbide or an identical materials that may face up to excessive temperatures. When the furnace begins a heating cycle and gasoline begins to circulation to the burners, an electrical present runs by way of the heating aspect to superheat it. The floor of the heating aspect turns into scorching sufficient to trigger the burners to ignite. As soon as the burners are lit, the igniter shuts off.
• Intermittent pilot gentle: Because the identify signifies, a pilot gentle nonetheless ignites the burners—nevertheless it solely activates for a brief interval. When the heating cycle begins, gasoline flows to the pilot meeting. An electrical spark then ignites the pilot gentle, which then lights the burners. As soon as the burners are on, the gasoline shuts off to the pilot meeting and the pilot gentle goes out.

Why Digital Ignition Took Over From Standing Pilot Lights

If in case you have a gasoline furnace constructed throughout the final ten years, it makes use of some kind of digital ignition. There are a number of causes that furnaces modified to this know-how:

• It reduces vitality consumption. Having a pilot gentle burning all through the winter is a passive use of pure gasoline that contributes to increased payments. Digital ignition both makes use of no additional gasoline or solely makes use of it briefly. 
• It’s extra constant and handy. Have you ever ever needed to take care of a pilot gentle that saved going out on you in winter and also you needed to undergo the trouble of relighting it? Digital ignition techniques can malfunction, however they achieve this at a much smaller charge than standing pilot lights.
• Digital ignition is safer than pilot lights. It’s simpler for the furnace to detect if the ignition for the gasoline burners has failed and shortly shut them off. 

If in case you have points along with your furnace’s ignition system, no matter it’s kind, you possibly can depend on us for quick repairs.

Name on Purl’s Sheet Metallic & Air Conditioning for all of your heating wants. Uncompromised High quality & Buyer Service Since 1952.

Tags: Electrical Furnaces, Fresno, Fuel Furnaces

Monday, September 18th, 2023 at 11:00 am | Classes: Heating
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