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Upgrading the bathroom Fan


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So it looks like the folks that make the Maxxair Deluxe in the main area are now making a 6" fan, that should fit in the same opening at the Ventline fan in the bathroom.  https://amzn.to/3dpDaeI

Here is a video of it running: https://youtu.be/bkh37arD9P0?t=147

 

Manual: https://www.airxcel.com/docs/default-source/maxxair/11-90056_mxr-maxxfan-dome-iom-09-24-2019.pdf?sfvrsn=64261a6b_2

Looks like the same 6 1/4" opening as the ventline and similar power draw.

 

Thoughts?

 

 

 

 

 

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2019 LE2 #529.   Standard Floorplan.

2020 GMC Sierra 2500 Duramax

 

 

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Sign me up. I’m willing to try it. Don’t care for the Ventline. Was going to replace mine when I get home anyway. 

Bill and Martha

2018 LEII Hull 313

2019 Chevrolet 2500HD Duramax with a custom Turboencabulator modification 

 

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Posted (edited)

I am sitting in the dinette area listening to the ventline now, and my original idea of fix it when it breaks or leaks is drifting toward replace it with the Maxxfan dome now.  The only downside is the Maxxfan is centrifugal, so it won't run in reverse.  I had the idea to reverse the Ventline so it would pull air in the top and push air out the window if open and out the toilet if not, so it would serve as a booster to the composting toilet fan if we need a little extra dehydration there and it's not too humid outside.

Edited by WhatDa

2019 LE2 #529.   Standard Floorplan.

2020 GMC Sierra 2500 Duramax

 

 

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I have been looking at the Maxxfan Dome fan as well but I haven’t read anything that convinces me it would be significantly quieter.

i also like the exterior dome cover can be white instead of black, like the Ventline.

Andrew

Andrew, Carianne and Buffy | San Diego, CA


2019 Legacy Elite II Hull #468 "California Burrito" | 2018 BMW x5 35d 

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Here is etrailer's video on the ventline to try to make an apples to apples comparison: https://youtu.be/QsE2vakSyYo?t=70

In their video the noise difference is apparent compared to the above video with the Maxxfan.  I'm definitely going to test the Maxxfan on the bench before I bother installing it.

 

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2019 LE2 #529.   Standard Floorplan.

2020 GMC Sierra 2500 Duramax

 

 

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Please let me know what you find out.  I am very interested if it is actually quieter.

Thanks!

Andrew

Andrew, Carianne and Buffy | San Diego, CA


2019 Legacy Elite II Hull #468 "California Burrito" | 2018 BMW x5 35d 

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Posted (edited)

I wish both published db testing, as FanTastic used to. But the Maxxfan dome does seem remarkably more quiet in the videos. It's about time someone gave Ventline a competitor.

Even if it turns out to be almost as noisy installed, stats show twice the cfm (200 vs 100) for a half amp more power (2 vs 1.5).  So, at least only have to hear it run half as long?

I'll look forward to your testing, too. We're on our second Ventline. First died about 8 years in. When it's time to replace it again, I was hoping to find something more quiet, like the marine solar vents on our boat, but they're all currently sized for much smaller cutouts, 3 to 4.7 inches.

Sherry

Edited by SeaDawg
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2008 Ram 1500 4 × 4

2008 Oliver Elite, Hull #12
 

 

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In full transparency, I haven't purchased yet as I am still working out the screws into the roof part of the install...  The other thing I am thinking is if I install a PWM controller to be able to dial it back as well - whether for noise or just not needing hurricane force winds inside.

2019 LE2 #529.   Standard Floorplan.

2020 GMC Sierra 2500 Duramax

 

 

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I added a PWM controller to slow the fan down and added a 3" vent through the vanity into the closet. 100 cfm seems way more than necessary for such a small area. I figure the combination of the additional vent and what can be drawn through the heat duct,  with register dampers removed, is about 60 CFM. This is is still plenty and enough to prevent the fan from drawing black tank gases past the toilet seal. A side benefit of this setup is that the closet now has flow-through ventilation as well. 

My Ventline was still pretty new when I did this and the motor brushes had not yet seated. Initially at lower speeds the motor made a really annoying high pitched rotational chirping sound. This has subsided after a hundred or so hours and the fan is now nearly silent in the lower quarter of the rpm range.

I also looked into the Maxxair but figured the additional cfm was unnecessary and undesirable. It also looks to have a plastic housing but not sure about this.

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2 hours ago, WhatDa said:

In full transparency, I haven't purchased yet as I am still working out the screws into the roof part of the install...  The other thing I am thinking is if I install a PWM controller to be able to dial it back as well - whether for noise or just not needing hurricane force winds inside.

That would be likely. Even the ventline creates a lot of suction if it's left on without opening a door or window. Not even sure the window would be enough with 200 cfm.

2008 Ram 1500 4 × 4

2008 Oliver Elite, Hull #12
 

 

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bhncb

Please post more info on the PWM controller installation for your Ventline fan. 

Bill and Martha

2018 LEII Hull 313

2019 Chevrolet 2500HD Duramax with a custom Turboencabulator modification 

 

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5 hours ago, Townesw said:

bhncb

Please post more info on the PWM controller installation for your Ventline fan. 

Okay I'm working on a detailed writeup with pictures for my trailer's documentation package. I'll post this writeup, in it's entirety, on this topic. But be forewarned, I made my project way more involved than what others might deem necessary. That's just how I operate. 

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1 hour ago, bhncb said:

... I made my project way more involved than what others might deem necessary. That's just how I operate. 

Oh, I fully understand. I operate the same way. If you’ve seen my screen door handle mounting plates you’ll agree. Thanks. 

Edited by Townesw
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Bill and Martha

2018 LEII Hull 313

2019 Chevrolet 2500HD Duramax with a custom Turboencabulator modification 

 

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On 6/23/2020 at 11:58 AM, Townesw said:

bhncb

Please post more info on the PWM controller installation for your Ventline fan. 

Okay, I decided to start from scratch. What I have is a six page Word document with pictures. Anyone care to provide assistance with getting the contents into a reply?

  

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