GFK4B Blower Fan Kit for Heatilator NDV4236I, Temco, Majestic, Lennox, Monessen, CFM, Vermont Castings Fireplaces, Rotom HB-RB74K R7-RB74K. FK4 GFK4A GFK4 Heatilator Fireplace Replacement Parts.

These work, easy to install and work as they should. Dimensions are close enough to the "name brand " unit the fireplace company sells for 4x the price. This fan is no louder than any other gas fireplace blower fan.

Works great and is quiet. Easy to install and have to stand next to the fire place to hear it. Way better than what I did have

The install was fairly easy, though getting your hands back into the space under the firebox is a little tight. Instructions are not very detailed, so you should consult the internet for better installation videos or instructions. The fan speed can be adjusted and moves air gently, but positively, giving you the heat that would otherwise be lost in the area above the fireplace (in my case, an empty wall cavity). It is a little noise, probably due to being mounted on sheet metal which acts as a sort of sound board. Still, turn the TV up a couple of notches and it's no problem at all.

Works great. Fit perfectly in our existing gas fireplace. Cost was very reasonable.

Easy to connect. Variable speed dial is nice. A bit loud on the high setting but that is to be expected. Just to note: if your fireplace has a “fan” and “aux” outlet, it needs to be plugged into the “aux” outlet due to the heat sensor. Would have been nice to have this included in the instructions.

Very solid product. However, I like a quiet environment. I have it set at half speed and I feel like it doesn't make a difference at all. At full speed it's extremely loud (in my opinion). It's priced well... but I wouldn't order it again or recommend it.

Works great! Quiet and efficient

Easy set up but slightly tough to get it in the right position. I had to get a little creative to get it mounted right. It moves just enough air to put some of the heat out into the room.