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Castle Serenity Pellet Stove Igniter: 720307-OEM

SKU 720307-OEM
MPN 720307
In Stock
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Castle Serenity Pellet Stove Igniter. The Igniter / Hot Rod works by superheating the air that passes through the burn pot.  This super-heated air comes in contact with the pellets causing ignition. Typically, it takes the igniter around 2-2½ minutes to reach its max temperature and begin to glow.  


Replacement For Part Number:
  • 720307

Click To See Compatible Models

Technical Specs

Igniter Length 6"
Wire Length 10"


Assembly Instructions For Castle Serenity Pellet Stove Igniter: 720307-OEM

Igniter Installation:

1.) Unplug the stove from the wall outlet.

2.) Remove the side panel of the stove closest to the power supply.

3.) Unplug the igniter from the wiring harness.

4.) Remove the 4mm set screw from the ignitor assembly.

5.) Pull the entire assembly from the ignitor tube.

6.) Reattach the two-piece moon clamp bracket around the igniter and slide it back into the ignitor tube.

7.) Position the tip of the igniter to sit centered in the tube (Make sure the tip of the igniter sits 1/2" or less from the opening).

8.) Snug the 4 mm set screw in place (Do not over-tighten).

9.) Reconnect the ignitor wires to the wiring harness

10.) Reinstall the side panel

11.) Plug in the unit.

Click on Videos if you need further assistance.


Helpful Tip:

It is important to make sure your burn pot and venting are clean. A build-up of carbon or ash in the burn pot or venting system can restrict airflow through the unit. Often the igniter is working fine, and this restriction in airflow is what causes the stove not to ignite.

Click to view: "ComfortBilt's Guide to Igniter Testing" or "ComfortBilt's Guide to Cleaning"

It is advisable to ALWAYS replace your door gasket when you are replacing an igniter. A leaking door gasket is often a contributing factor to igniter failure.

Troubleshooting Igniters:

Igniter failure can be verified on one of three ways. The easiest and most common way to see if the igniter is working is to start your stove or grill and visually look for the orange glow; however, some appliances do not have a visual way to do this, so you may have to physically feel around in the burn pot after the stove has been on for a few minutes to “feel” for heat being generated. If you can see the glow or can feel the heat from the igniter, chances are that the igniter is actually working. If this is the case, retry the startup process. Make sure your burn pot is seated correctly if it is removable. Make sure that your ash pan, door or hopper lid is closed as this will provide an airtight seal on the stove, which most igniters will require for proper ignition. If you still do not have any luck, give the stove a good cleaning, including the vent, and try again. If these attempts fail, further troubleshooting will be required, which leads us to the third method.

For this method, you will need a DMM (Digital Multi-Meter). Gain access to the igniter and remove it from the stove or insert. While you are taking the igniter out, verify that it is installed correctly with the correct mounting equipment, screws, etc.. With the igniter removed from the stove, you will need to look over the part to find the rated watts, it’s usually stamped on the metal somewhere. If you cannot find it, look on our website for the correct igniter; the information you are looking for will be under “technical specs”

If your Ohms reading is within 10%, more or less than the rating (46Ω +/- 10%), it’s good. If the igniter has a “contained short” or a short within itself and not grounding out, your Ohms reading will be very low...usually in the single digits. Generally, you cannot have a faulty igniter with too high of a resistance reading unless an igniter is installed that is way out of spec. An example of this would be your stove requires a 300W igniter but the stove has a 250W igniter installed. The reading in this scenario would be 52Ω. The reading would be correct to the igniter but would be the wrong value for the specified 300W igniter. That’s why it’s usually good to look at the part itself for the watts rating.


Unfortunately, sometimes products do not work like they are supposed to. We offer a 90 day warranty on manufacturer defects. Some manufacturers make this a very simple and easy process unfortunately others do not. Items must be used in accordance with the manufacturers guidelines to qualify for warranty replacement. Please be advised that warranty claims for these parts may take up to 4 weeks for processing, and customers must cover shipping.

Shipping Info

This Item Qualifies For Free Shipping With Orders Over $199!

When Will My Order Ship

All orders are typically processed within 24 hours of receiving payment and are shipped from us same day if placed before our shipping cutoff time (Monday - Friday: 1PM, Saturday: 10AM, Sunday: No Shipping), orders placed after our cutoff time are shipped the next morning.

How Does Free Shipping Work?

Most orders over $199 qualify for free shipping! Orders which ship for free are shipped with either USPS or UPS based on our discretion. If you are using a PO box, free shipping orders will always go USPS.

Is Expedited Shipping Available?

We offer both overnight and two day air shipping services for all orders placed within the Continental United States. For information on shipping cut-off times, go to our shipping page.

Do You Ship To Canada?

We ship to Canada! We estimate USPS to take 4-10 days once receiving your package from us. We do not offer expedited shipping of any kind to Canada. Please allow an extra 2-5 days for all shipments to Canada. Free shipping is not available to Canada.

Do You Ship To Alaska Or Hawii?

We ship to both Alaska and Hawaii! We do not offer next day or two day shipping to Alaska or Hawaii. Free shipping is not available to Alaska or Hawaii.

Do You Ship Outside The US Or Canada?

Unfortunately, at this time we do not offer international shipping other than to Canada.

Shipping Time Estimations

For information on shipping time estimations, see the Shipping Information & Transit Times on the shipping page.

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