Heatilator Gas Fireplace Manual [Step By Step Guide]

Looking for a complete Heatilator gas fireplace instruction manual? Read the whole article. Today, we will tell you everything that a Heatilator gas fireplace manual has to offer:

So let’s get started……

3 Useful Things To Learn From Heatilator Gas Fireplace Manual

Let’s be honest, Heatilator gas fireplace is not easy to maintain. There are lots to handle with this device and it can be quite difficult. In addition, the manual that comes with a Heatilator gas fireplace is not very easy to understand. And applying the methods instructed in these manuals can be tricky.

However, we are promising that by the end of this article, you will have a better understanding of the Heatilator gas fireplace and this understanding will certainly help you to handle the fireplace better. We started our research with the 1995 Heatilator gas fireplace manual. Afterward, our study went on with the Heatilator gas fireplace manual 1996.

Finally, from what we understood from Heatilator GR4 and Heatilator NDV4236i manual, we have managed to break down things you can learn from the Heatilator gas fireplace manual.

Here’s what you will learn:  

  • How to install a Heatilator gas fireplace 
  • How to maintain the Heatilator gas fireplace 
  • How to deal with Heatilator gas fireplace troubleshooting 

Heatilator fireplace has different models, such as Heatilator E36 and Heatilator GNDC46. No matter what model you own, by the end of this article, you will be able to operate it all.

8 Steps To Install A Heatilator Gas Fireplace

Installing a Heatilator gas fireplace can be tricky. But here, it will surely get easy for you. You can rest assured that the method we are going to apply is totally authentic as we are relying on the Heatilator gas fireplace manual for the direction. But before jumping into the main process, there are a few things you need to determine.


Here’s what you need to do before installing a Heatilator gas fireplace,

  • Plan and arrange the position you want to install the fireplace
  • Determine what vent system configuration you will be using
  • Arrange the gas supply piping
  • Organize the electrical wiring
  • Prepare frames for the framing and finishing process

And prior to getting to work, make sure that these tools are near your reach:

  • Reciprocating saw 
  • Pliers 
  • Framing material 
  • Non-combustible sealant 
  • Hammer 
  • Gloves 
  • Electric drill and bits 
  • Phillips screwdriver 
  • Framing square 
  • Flat blade screwdriver 
  • Level 
  • Plumb line 
  • Safety glasses 
  • Tape measure 

After you have properly managed these things, you are ready to install the Heatilator fireplace. Here’s how to do it properly in less than 10 steps:

Step 1: Building The Pedestal

The first thing you need to do to set up a Heatilator gas fireplace is building the pedestal it will stand on. The purpose of the pedestal is to provide support to the whole fireplace. 

Build the base from ¾-inch plywood and 2×10 lumber. This is the ideal size for a Heatilator gas fireplace. Join the pieces of pedestals together with framing nails or utility screws.   

Step 2: Positioning The Fireplace

After you have installed the pedestal, it’s time to position the fireplace on it. Keep in mind that the fireplace will be heavy. So, take help from someone to assist you.

Before positioning it, apply a thin bead of high-temperature silicone caulk around the flue collar on the top of the firebox. Slide the first vent pipe segment over the flue collar. Examine to see if it needs a gasket into the joints between the vent and the fireplace. If so, press the gasket in place after sliding in the first vent pipe. Lock the vent pipe in place with metal screws.

Step 3: Opening The Wall

Heatilator gas fireplaces are vented out of the wall behind the fireplace. An L-shaped vent extends roof-wards from the firebox. A sharp 90-degree bend penetrates the back wall and terminates in a vent cap. However, you cannot just punch a hole in the wall to allow the vent to pass through. The opening here must be carefully framed. 

Vent pipe must have fire-stop plates both on the inside and the outside. Then, mark the opening from where the vent will pass through. Loosely mark the opening, so that the vent can pass easily. Place your vent through this opening to see if it all fits and build a square frame to hide the wall cavity. Use 2×4 lumber in this case.  

Step 4: Completing The Vent Pipe

After the wall is open and ready to hold the vent, assemble the vent pipes with sheet metal screws. Cut the vent pipe according to the length and angles of the venting tunnel. Use an aviation snip. 

After preparing the vent pipe, place it within the wall frame with a metal fire-stop collar. This will prevent the pipe from touching the wood framing members. After the collars are screwed to the vent frame, seal the remaining gaps with high-temperature silicone caulk.

Step 5: Running The Gas Lines

It’s better if you call a heating specialist or a plumber for this purpose. What they will do is they will extend the existing gas lines. Ask your plumber to install a shutoff valve to make it easy to shut off the gas in case of an emergency. Make sure that this valve is easily accessible. 

The wall may need to be opened up again to allow the gas line to run. As this part of the wall will be hidden behind the fireplace there is no need to patch the wall. This way the lines will be accessible in case further modification is required.

Step 6: Running The Electrical Service

You need to follow this step only if your Heatilator gas fireplace model has an electric control or an air circulating fan. If your fireplace requires electrical configuration, then call an electrician. In case your fireplace covers up an existing outlet, you will need to reroute the electrical cables. This way it will be easier for you to plug in your gas fireplace.

Step 7: Framing The Fireplace

Framing is important to give your fireplace a better look. Use 2×4 lumber to build a frame for the fireplace. Measure your fireplace properly to make a perfectly shaped fireplace frame. The frame must be a bit larger than the fireplace so that the fireplace can be cleaned properly. This point is also important to ensure utmost safety. 

After creating the frames, place them surrounding the fireplace part by part. If you are planning to use ceramic tile then cover the surrounding area and the frame with the material. Cover the top of the frame with ¾-inch plywood. This way you will be able to create a sturdy frame for your fireplace. 

Step 8: Finishing Up

Now, your fireplace installation process is almost over. Look for any faults in the frames and examine the whole surrounding of the fireplace.

See if everything is in the right position. If you want to add any design of your choice, now is the time to do that. Well, this is it. If you have followed the above instructions, you have by now installed your Heatilator gas fireplace perfectly. And you have done it in less than 10 steps. You have to admit that it’s quite impressive.

How Do You Turn On Your Heatilator Gas Fireplace With Remote

You can turn on your Heatilator gas fireplace with the remote in the following way:

  • Identify the control knob
  • Push in the control knob and set it to the “pilot” option
  • While pushing the knob, keep pressing the igniter continuously till it fires
  • Keep pushing the knob to make sure it stays lit for at least 30 seconds
  • If it doesn’t light, repeat the method after 5 minutes.

How To Light The Pilot In The Heatilator Gas fireplace

Follow these steps to light the Heatilator gas fireplace’s pilot:

  • Locate the gas supply valve
  • Open the valve.
  • Locate the pilot assembly.
  • Push the igniter button to identify spark at the pilot area.
  • Push and rotate the black or green valve control knob.
  • While doing the rotating of step 5, keep pressing the red piezo button till the pilot ignites.
  • Slowly release the valve knob after holding it for 30 seconds. If this doesn’t light the pilot light of your Heatilator gas fireplace, then repeat the whole process.

7 Things To Maintain In Your Heatilator Gas Fireplace

The Heatilator gas fireplace requires regular maintenance. This way the fireplace lasts longer. But, you have to perform the maintenance in the proper way. You need to deal with different parts of the fireplace accordingly.

Different Heatilator gas fireplace parts require different maintenance. If you don’t know how you can maintain these parts then don’t worry, we got your back. Here are 7 things to maintain in a Heatilator gas fireplace.

1. Glass:

The glass of the Heatilator gas fireplace needs to be cleaned seasonally. Clean the glass following this method to get the best result:

  • Remove the door and the fronts from the fireplace
  • Remove the fixed glass assembly
  • Clean the glass with a non-abrasive cleaner (you can use fireplace glass cleaners as well)
  • Use a soft cloth to wipe the glass clean
  • Carefully reinstall the glass assembly 
  • Install the door back again

Make sure the glass is cooled down when you are preparing it to clean.

2. Door:

You may need to change the door of your fireplace annually. Follow the below-mentioned steps to determine if you need to change the door of your gas fireplace.

  • Assess the condition of the screens and doors
  • Look for dents, scratches, and other damages. You can use a torchlight for this purpose
  • Check if the louvers are blocked
  • Examine the vacuum and dust surfaces condition

3. Remote Control:

Heatilator gas fireplace remote control may need battery change every 4 or 5 months. To do that you have to:

  • Locate the remote control transmitter and receiver
  • Test if the remote is working
  • Remove the old batteries from the remote control if it’s not working
  • Unplug the 6-volt power supply on IPI models
  • Place the batteries accordingly

4. Venting:

It’s enough if you clean the venting of the Heatilator gas fireplace once a year. It’s best if you do it after the rainy season. Here the reason is, the monsoon storm can cause many objects such as trees or leaves to fall into the chimney and block the venting path. In order to make sure the vent is in good condition, you have to:

  • Examine the vents and the termination cap for obstructions and blockages
  • Make sure there is nothing stuck in the termination cap
  • Look for corrosion
  • Inspect to see if sealing, stripping, and flashing remains intact
  • Look at the draft shield to make sure it’s in perfect condition

5. Gasket Seal:

You need to deal with your gasket seal once a year. Unless you are an expert yourself, you need to call in a professional to do what’s needed. Here’s what you need to do:

  • Inspect the gasket seal first and determine its condition
  • If there is no damage leave it be
  • If there is any damage replace it immediately

6. Firebox And Firebox Top:

You need a professional for this maintenance as well. Here’s what needs to be done:

  • Observe the paint condition and repaint if you see any problem
  • If the firebox has been perforated, replace it as soon as possible
  • Vacuum the firebox top and clean off any cobweb, debris, and dust
  • Don’t allow any foreign object on the firebox top
  • Make sure that there is unobstructed air circulation

7. Burner Functionality:

Even if the burner of your Heatilator gas fireplace is working properly, you have to do a thorough check-up once a year. Hire a professional to do the task. Here’s what to do:

  • Make sure that the burner is perfectly placed. It has to be aligned with the pilot or igniter.
  • Clean the burner top and ports. Inspect for deterioration or corrosion. Change the burner, if there is heavy damage.
  • Check the batteries thoroughly to make sure there is no leakage or damage
  • Inspect to see if the air shutter setting is accurate
  • Examine the orifice to see if there is any dirt, soot, or corrosion
  • Observe the pilot flame strength 
  • Inspect to see if the thermocouple and IPI millivolt output are in good condition. Replace them if it’s necessary to do so

To be fair, maintaining a Heatilator gas fireplace can be complicated. There are so many parts that it’s easy to get confused about where to start. But if you follow the above-discussed process point by point then it shouldn’t be any problem. 

5 Heatilator Gas Fireplace Troubleshooting

Despite being one of the best fireplaces available in the market, the Heatilator gas fireplace too can go through different issues. However, with proper instructions, dealing with Heatilator gas fireplace troubleshooting shouldn’t be hard.

Take a look at these guides for Heatilator gas fireplace troubleshooting and make sure you can handle your device properly.

Troubleshoot 1:


  • The pilot light won’t turn on
  • Ignitor makes noise with no spark
  • The module makes noise with no spark


  • Faulty wiring
  • Electrical shorts in wiring
  • Loose connection
  • The ignitor gap is too big  


  • Make sure that the ‘I’ wire (orange) and the ‘S’ wire (white) are connected to their designated terminals on the pilot assembly and module.
  • Inspect the module to pilot assembly and make sure there is no loose connection or electrical shots
  • Make sure every connection is perfectly stable
  • Close the gap of the ignitor to the right side of the pilot hood. This gap should be around 0.95 to 0.135 inch

Troubleshoot 2:


  • The pilot doesn’t light 
  • No noise from ignitor or module
  • No sign of spark


  • Insufficient power
  • Incorrect installation of transformer
  • Depleted batteries
  • Shorted or loose connection in the wiring
  • Incorrect wall switch wiring
  • Ungrounded module


  • Make sure that the transformer is properly installed and plugged into the module
  • Make sure the voltage of the transformer reads 6.4-6.6 volts DC
  • The battery power supply voltage must be at least 4 volts
  • Remove the wiring harness that plugs into the module and reinstall it
  • Make sure that 110-120 VAC power is ‘on’ to the junction box
  • The black ground wire of the module wire harness must be grounded to the metal chassis of the appliance. Make sure it is this way.

Troubleshoot 3:


  • Pilot sparks but doesn’t light


  • Insufficient gas supply
  • The ignitor gap is too big
  • Ungrounded module
  • Pilot valve solenoid


  • Make sure that the incoming gas line valve is open
  • Check if the intel pressure is at an accurate level
  • Close the ignitor gap to 2.41mm to 3.43mm
  • Securely ground the module to the metal chassis of the appliance
  • Make sure that 1.5 to 1.8 VDC is being supplied to the pilot solenoid from the module. In case it’s below 1.5 volts, replace the module. If it’s above 1.5 volts, then change the valve 

Troubleshoot 4:


  • The pilot lights but continues to spark
  • The main burner doesn’t ignite


  • Loose or shorted connection in flame sensing rod
  • Weak flame rectification
  • Contaminated flame sensing rod
  • Ungrounded module
  • Damaged pilot assembly


  • Make sure that all connections to the wiring diagram are in manual settings
  • See if the connections underneath the pilot assembly are tight enough
  • Make sure that the igniter wires are not grounded to metal chassis
  • Make sure that the flame sensing rod glows shortly after ignition 

Troubleshoot 5:


  • Appliance lights and runs for a few minutes and then shuts down again
  • The appliance cycle continuously turns itself on and off


  • Shorted or loose connection in the flame sensing rod
  • Contaminated flame sensing rod
  • Weak flame rectification
  • Improper set up of logs
  • Damaged pilot assembly


  • Set the wiring connection in the manual arrangement 
  • Reinstall the logs
  • Make sure that the ceramic insulator of the flame sensing rod is in perfect condition
  • Polish the flame sensing rod with steel wool
  • Replace the pilot if you notice any damage

With these troubleshooting methods, you can pretty much solve any issue with your Heatilator gas fireplace.

How Do You Reset Your Heatilator Fireplace

Here’s how you can reset your Heatilator fireplace:

  • Turn the knob from “off” to “pilot” setting
  • Push the pilot knob in
  • Then press the igniter button once every second till it lights. And now you have perfectly reset your Heatilator fireplace.


Are Heatilator fireplaces good?

Heatilator fireplaces are better than most options. While traditional fireplaces require you to go through the trouble of processing woods and cleaning the residue, there is no such hassle with a Heatilator fireplace as these appliances use gas. In addition, Heatilator fireplaces are cheaper to use and it’s eco-friendly.

Will a gas fireplace work if the power is out?

Whether your gas fireplace will work without electricity depends on its mechanism. If your gas fireplace has a vertical pilot, you don’t need electricity to run it. However, if there is a blower or a fan in the gas fireplace, then it will need electricity to run.

To Conclude:

Heatilator gas fireplace can be difficult to maintain. And its manual isn’t a piece of cake either. But after reading our simply written whole article, hope now you can easily deal with any issue of your Heatilator gas fireplace to fix it. 

Yet, if we missed anything that could help you, let us know in the comment. We will come to you with the solution ASAP.

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