HENG'S INDUSTRIES 90046-CR Vortex II Replacement Fan Kit (501.1099) | High-Power RV Vent Fan Upgrade | Easy Installation for RVs, Campers, & Trailers | White

As said, i was able to install in the 2018 grand design. Remove the shroud and had to grind off the fan holder, Drill out the small metal hole from the fan retainer at 9/32 and the screw fit perfectly. I wired it from above since that was MUCH easier. Just make sure the wires are out of the way when putting up the fan and then you can also tape / zip tie them into place out of the way.There is only Medium and high pulling air in but, l/m/h blowing out so thats perfectly fine for me. I will also be replacing the one in the bathroom since this went so well and was only really about 25 minutes.The handle is tight to the frame but, that is fine. Its not like i have to open fast or super often, usually once a day is it and it works just fine.I did have to move the gear connector to align correctly but, thats just 2 small screws on the face side hidden behind what is not the turn handle. I will for sure be getting another one for the bathroom.

Perfect fit, easy enough to put in place. Works good.

Replaces original. NO instructions at all. Not too bad to install if you watch others on you tube. It is a DIY project but you do need to be somewhat handy. Helps to have a third hand as well. May need a sawzall to cut away old fan bracket.

I’m active on several rv groups, whist on vacation I become bord and take on rv projects, the following was well received so I thought I’d share..... Some coaches, like mine, have a fantastic fan over the galley area and a dinky fan in the vent above the toilet. My dinky fan screams like animal captured in talons of a bird of prey. I oiled the little guy but it still screams the song of his people. Someone gave me a gift certificate to camping world, so I reluctantly visited the store. They (along with other places ) sell a replacement fan which doesn’t require removal of the whole unit, the fan requires removal and re-use of the interior surround but replaces the original fan, crank handle and screen. The new unit comes with a removeable screen! Now I can get rid of bugs that treat my vents as a personal burial ground. ( am I the only person who flicks their little dead corpses into the rotating fan with hopes they are ejected to the roof.... I digress) installation was straightforward, it took a couple tries to align the crank adapter but no bandages or sedition were needed on my behalf. Finally, I turned it on, it is appreciably louder than a properly operating dinky fan, it makes a whine... not horrible ( like noises heard coming from the back seat when dinner time has past) but enough “white” noise to cover most post chili cook off testing expulsions, with the door closed it is hardly noticeable. ......... BUT here is where it shines, this thing moves enough air to test model gliders, with the door to the can shut your feet will become frost bitten by all of the a/c provided cool air passing under said door... dinky ain’t got nothing on this....but it has a very dark side.... IF you dally around with the flush operation, peering through that opening in the toilet bowel basin ( no doubt admiring you recent accomplishment) our new hero (new fan) will refresh all stagnant air from the black tank by pulling it past your face to the roof in speeds exceeding a derecho. .... yeah, just like that.. so, at the end of the day I believe the conversion is an appreciable upgrade, not very expensive (60 bucks) and not difficult. Sometimes we get what we expect and more... to each your own.... just lay off the onions...

Delivered as promised

It’s easy if you have 2 people unless you’re a circus juggler! Take the screen off prior to installing, put screen back on before putting the raise lower knob on

I bought this Heng 90046-CR Replacement Vortex II Fan to upgrade the existing vent in my Aliner Sportliner camper (the smallest of the Aliner models). That vent had never had a fan and had no original wiring. From other reviews, installation videos, and Amazon Q&As, I thought the Heng unit should fit the vent but was not sure if it would run well in the severely slanted Aliner roof. I was also concerned about clearance for the fan profile when my Aliner was closed.My results were good. The Heng unit fit the existing opening, and the vent control system worked with the Heng control adapter. I pulled power from a light fixture located lower on the wall after testing the polarity of the existing two wire system (both Aliner wires were black) and that of the fan (one black wire, one white wire, but not wiring diagram provided). I surface mounted those wires on my slant ceiling in a low profile, self-adhesive cord cover and drilled a small hole in the face of the Heng to be able to route my power to the Heng wires at the back of the fan.The Heng fan runs without difficult at the roof angle of the Aliner and moves air very well. It was great for creating air movement on hot days. On cold days, with the vent closed, the unit pushes warm air back from the peak of the ceiling to recirculate it, reducing the amount of run-time for the furnace and evening the temperature throughout the living space.Unlike the vent fan models used as original equipment for the Aliner, the Heng profile does cause concern when folding the roof to its closed position. There is no question that the control handle for the vent would be smashed if it were not removed before roof closing. The removable screen which covers the fan also seems wise to relocate before closure. The fan speed control knob and other elements of the face of the fan can be bypassed if care is taken when collapsing the roof components and, so far, have not been damaged during closed-roof transport, but these parts seem at risk of eventual damage. I will probably make it a practice to remove the entire insert when it is necessary to close my roof or eventually adapt the depth of the Heng so the projections are protected in the vent cavity. If I always had a companion to assist when the roof halves are moving, I'd probably use the Heng as is and address any problems if they occur.My previous RV vent fan experience has been with professionally installed Fantastic Vent Fans (original manufacturer, not current). Given the price difference and ease of aftermarket installation (watch the videos as there are several tips which are helpful), this Heng unit compares well. I will be buying another for a flat roof camper application this coming season.