Heat-n-Glo OEM Natural Gas Pilot Assembly 4021-732

I HAVE A 20 YEAR OLD HEATILATOR MODEL GNBC 36 NATURAL GAS VENTED FIREPLACE WITH A SOLID GLASS FRONT SCREEN. THE PILOT WOULD NOT LIGHT. I REMOVED THE GLASS SCREEN AND IT WAS TAKING A DOZEN OR MORE PUSH BUTTON TRIES ON THE SPARK IGNITER BEFORE THE PILOT WOULD LIGHT. THE PILOT WOULD THEN STAY LIT AND THE MAIN BURNER WOULD IGNITE AND BURN POPERLY UNTIL I RE-PLACED THE GLASS SCREEN ON THE FRONT OF THE FIREPLACE. THEN THE BURNER FIRE WOULD BURN ABOUT 2 MINUTE AND EVERYTHING WOULD GO OUT. I PROPERLY CLEANED THE OLD PILOT ASSEMBLY AND THE THERMOPILE AND THERMOCOUPLE SENSORS. EVERYTHING SEEMED TO TEST FINE WITH MY MULTIMETER, I CHECKED THE FIREPLACE VENTING, ETC AND NOTHING HAD CHANGED IN 20 YEARS. THE ENTIRE FIREPLACE AND ALL THE COMPONENTS HAD BEEN CLEANED PROPERLY. I REPLACED THE OLD GAS PILOT ASSEMBLY WITH THIS NEW PART AND EVERTHING IS AGAIN WORKING PROPERLY WITH THE GLASS SCREEN IN PLACE. THE PILOT IGNITES NOW WITH ONE PUSH OF THE BUTTON! I DO CAUTION THAT ON THIS MODEL FIREPLACE IT IS A COMPLICATED AND TIME-CONSUMING (3 HOUR) JOB TO REPLACE THE PILOT ASSEMBLY. THE GLASS COMES OFF, THE PILOT ASSEMBLY CONNECTIONS ARE DIFFICULT TO DISCONNECT AND CONNECT TO THE PILOT GAS VALVE IN THE LIMITED SPACE UNDER THE FIREBOX FLOOR. ONCE DISCONNECTED THEN THE LOGS COME OUT, THE PILOT ASSEMBLY MOUNTING POST IS UNSCREWED AND COMES OUT, THE FIRST FLOOR COVER IS UNSCREWD AND COMES OUT, THE S SHAPED BURNER NEEDS TO BE DISCONNECTD AND COMES OUT, THE SECOND FLOOR COVER IS UNSCREWED AND COMES OUT. NOW YOU HAVE VERY LIMITED ACCESS TO PULL THE PILOT ASSEMBLY UP AND OUT WHILE SNAKING THE 2 GAS LINES AND 2 WIRES UP THROUGH A SMALL HOLE IN THE REMAINING THIRD FLOOR COVER. NOW YOU MUST SNAKE THE NEW PART'S GAS LINES AND WIRES DOWN THROUGH THE LIMITED ACCESS HOLE, RESEAL THE HOLE, THEN CONNECT BACK EVERYTHING TO THE GAS VALVE AND THEN RE-ASSEMBLE EVERYTHING. NOT A SIMPLE REPLACEMENT.

Easy to install. Seems like nice quality. Got my fireplace back up and running. Hardest part was disassembling the fireplace and taking out the old part. My set up did require me to use a high heat red silicone to seal up the holes where this unit fits in. I had to make a quick trip to the auto parts store to find some.

My fireplace went out - local HVAC company cleaned it and it went out again after a week. This was a perfect for. Disassembly of fireplace was a pain, but replacing the part was easy when I got to it. Fired right up and works perfectly.

This part is an exact replacement for the fireplace flame ignition system in my Heatilator GNDC30 natural gas fireplace. I just finished installing it and the whole process to remove the old and replace this new part took about 90 minutes (included cleaning of the firebox and tempered glass front panel) and the fireplace fired up perfectly when I lit the pilot then turned on the switch to start the flame. Would recommend and/or purchase this part again if needed. Much cheaper to do this replacement yourself.

It worked well. Only reason I didn’t give five stars is because the thermocouple came loose in package and a pressure washer was very difficult to re set. Shipping was fast and pr Duct works great.

The pilot assembly was just what I needed to get the fireplace working properly again. The flame would not stay lit, now it works like new. Since I had essentially everything apart I was able to do a thorough cleaning and I painted the log rack. I also needed high temp silicon caulk and high temp spray paint. The original assembly had high temp grommets which I could not locate. The high temp caulk is also a gasket material so I was able to substitute the caulk for the grommets.

Exact replacement for my Heatilator fireplace. Relatively easy to replace, however my gas valve was hard to access so had to do a lot by feel. Took me a couple hours. Once replaced and fireplace reassembled, it fired back up and has been working flawlessly. Figure this probably saved me $500 in a repair bill.

One pro said he would install it for $170 but could not come out for three weeks. One guy wanted $400 to install it. He wanted $270 to clean what I had. Turns out I did find a clump of dirt inside the old one and maybe cleaning would have cured the problem but we want ahead and replace the whole unit anyways. The guy I found did not know what he was doing, but we figured it out and he only charged me $60. The flame seems a little high to me and I can not get the adjustment screw on my unit to turn it down. Bit it is working so at least I have heat in my addition. I had a guy out here a few years ago to clean and adjust it at the time and that did not seem to be a permanent solution like a replacement. The thermocouple does get a bright red, esp when the burner is on. But it is still working so I have heat. I do not know how long it will last but thermocouples are only $6.95 so I can replace it if it burns out.