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Author Topic: Where to tap into power for Fantastic Fan?  (Read 275 times)

99dart

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Where to tap into power for Fantastic Fan?
« on: September 12, 2017, 01:06:29 AM »
I bought a Fantastic fan for our MH, but I don't see an access to a constant 12v source. One light switch for several cabin lights is nice, but you can't tap into their 12v power. Any of you guys that have done the install, where did you get your power source?
2016 Thor Quantum WS31
2014 Ford Focus toad
1998 Four Winds Chateau -- sold

pz

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Re: Where to tap into power for Fantastic Fan?
« Reply #1 on: September 12, 2017, 07:08:24 AM »
I guess we have a simple ceiling in our fiver - there is a ceiling light near the original vent openings into which we placed our Fantastic Vents - we used the hot wire from the ceiling light for the install. Because of the way our ceiling is insulated with Styrofoam, I did not see a way to fish wires and would have had to surface mount them in decorator channels.
PZ
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2011 Rockwood 8288SS
2012 Ram 3500 6.7L Cummins

Rene T

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Re: Where to tap into power for Fantastic Fan?
« Reply #2 on: September 12, 2017, 07:24:08 AM »
I bought a Fantastic fan for our MH, but I don't see an access to a constant 12v source. One light switch for several cabin lights is nice, but you can't tap into their 12v power. Any of you guys that have done the install, where did you get your power source?

Remove the inside trim for the vent you have now and see if there is already a power source there. Some manufacturers run wires just for that reason.
Rene & Lucille & co-pilot Buddy
AKA  Pep N Mem
2011 Chevy Duramax 2500 HD 4X4
2011 Montana High Country 343RL
From the Granite State of NH
& Florida Snowbird in Lakeland FL

99dart

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Re: Where to tap into power for Fantastic Fan?
« Reply #3 on: September 12, 2017, 10:09:19 AM »
I dropped the vent trim first thing. There is wiring for the lights, but of course no power until you turn on the lights. I actually tried creating a channel in the styrofoam from an adjacent vent opening to the cupboard above the entry door. That's where the usb plugs are, and a 12v power supply. No joy yet with that idea. It SHOULDN'T be this HARD! Dang! This is a very popular addition to our coaches.
2016 Thor Quantum WS31
2014 Ford Focus toad
1998 Four Winds Chateau -- sold

pz

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Re: Where to tap into power for Fantastic Fan?
« Reply #4 on: September 12, 2017, 10:42:00 AM »
Indeed; when I did the research into installing the fans, most people were using the hot leg from an adjacent light fixture. However, this only works if the switch is built into the light and is not a separate wall switch.
PZ
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2011 Rockwood 8288SS
2012 Ram 3500 6.7L Cummins

Rene T

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Re: Where to tap into power for Fantastic Fan?
« Reply #5 on: September 12, 2017, 11:12:13 AM »
Indeed; when I did the research into installing the fans, most people were using the hot leg from an adjacent light fixture. However, this only works if the switch is built into the light and is not a separate wall switch.

I'm no electrician but would this work?  If there are 2 wires going by the switch, one of the leads probably is connected to the switch. That would be the hot lead. The other wire is probably the ground.  You won't get power to the light until you turn on the switch. What if you disconnected that lead and put the switch in the ground lead then connected the ends the hot leads. This way you'll get continuous power to the light but it won't go on till you turn the switch on making continuity to the ground wire going to the light. Then you could tap into the light for the new fan. Would that work and is it legal?
Rene & Lucille & co-pilot Buddy
AKA  Pep N Mem
2011 Chevy Duramax 2500 HD 4X4
2011 Montana High Country 343RL
From the Granite State of NH
& Florida Snowbird in Lakeland FL

lavarock1210

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Re: Where to tap into power for Fantastic Fan?
« Reply #6 on: September 12, 2017, 12:56:06 PM »
Most likely the cheap low volume fan in the bathroom can be replaced with a Fantastic fan.  The 12 volt wiring is already there.

That is what I did.  Then where ever you want ventilation open a window near there and run the Fantastic in exhaust mode.

Rene T

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Re: Where to tap into power for Fantastic Fan?
« Reply #7 on: September 12, 2017, 01:11:07 PM »
Most likely the cheap low volume fan in the bathroom can be replaced with a Fantastic fan.  The 12 volt wiring is already there.

That is what I did.  Then where ever you want ventilation open a window near there and run the Fantastic in exhaust mode.

I agree but they didn't say it was for their bathroom.
Rene & Lucille & co-pilot Buddy
AKA  Pep N Mem
2011 Chevy Duramax 2500 HD 4X4
2011 Montana High Country 343RL
From the Granite State of NH
& Florida Snowbird in Lakeland FL

lavarock1210

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Re: Where to tap into power for Fantastic Fan?
« Reply #8 on: September 12, 2017, 01:59:20 PM »
I agree but they didn't say it was for their bathroom.

Curious did you read all of my post?

kdbgoat

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Re: Where to tap into power for Fantastic Fan?
« Reply #9 on: September 12, 2017, 02:02:36 PM »
Yep, you were suggesting replacing an existing fan with a Fantastic instead of putting a Fantastic fans where there is no wiring. Do I win a prize? ;D
I know you believe you understand what you think I said,
But I am not sure you realize what you heard is not what I meant


2016 Leprechaun 319DS

pz

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Re: Where to tap into power for Fantastic Fan?
« Reply #10 on: September 12, 2017, 03:33:01 PM »
I'm no electrician but would this work?  If there are 2 wires going by the switch, one of the leads probably is connected to the switch. That would be the hot lead. The other wire is probably the ground.  You won't get power to the light until you turn on the switch. What if you disconnected that lead and put the switch in the ground lead then connected the ends the hot leads. This way you'll get continuous power to the light but it won't go on till you turn the switch on making continuity to the ground wire going to the light. Then you could tap into the light for the new fan. Would that work and is it legal?


I don't know how legal it is, but after watching several YouTube videos on Fantastic Vent install, I felt comfortable that the method works. I simply tapped into the positive and negative wires going to the light fixture so the fixture and fan are wired in parallel. Both the fan and the light receive power all the time, but turn on only when switched on.


One thing to do is to be clear which is the hot lead and which is the ground - my rig does not have the usual black for hot and white for ground, so I test with a volt meter with every change I make.
PZ
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2011 Rockwood 8288SS
2012 Ram 3500 6.7L Cummins

Rene T

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Re: Where to tap into power for Fantastic Fan?
« Reply #11 on: September 12, 2017, 05:37:53 PM »
Curious did you read all of my post?

Yes I did and you're the only one who mentioned a bathroom fan.
You said " Most likely the cheap low volume fan in the bathroom can be replaced with a Fantastic fan".
What I was getting to was the OP never mentioned they were replacing a bathroom fan with a Fantastic fan.
Rene & Lucille & co-pilot Buddy
AKA  Pep N Mem
2011 Chevy Duramax 2500 HD 4X4
2011 Montana High Country 343RL
From the Granite State of NH
& Florida Snowbird in Lakeland FL

99dart

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  • If it ain't broke...don't fix it!
Re: Where to tap into power for Fantastic Fan?
« Reply #12 on: September 12, 2017, 05:51:47 PM »
Indeed; when I did the research into installing the fans, most people were using the hot leg from an adjacent light fixture. However, this only works if the switch is built into the light and is not a separate wall switch.

You got it! Exactly my dilemna!!
2016 Thor Quantum WS31
2014 Ford Focus toad
1998 Four Winds Chateau -- sold

99dart

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  • If it ain't broke...don't fix it!
Re: Where to tap into power for Fantastic Fan?
« Reply #13 on: September 12, 2017, 05:59:19 PM »
Most likely the cheap low volume fan in the bathroom can be replaced with a Fantastic fan.  The 12 volt wiring is already there.

That is what I did.  Then where ever you want ventilation open a window near there and run the Fantastic in exhaust mode.

I wish it was that easy. Having the new fan in our bathroom wouldn't do much good. With the door closed (as it usually is) there wouldn't be any coach air to move.
2016 Thor Quantum WS31
2014 Ford Focus toad
1998 Four Winds Chateau -- sold

john owens

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Re: Where to tap into power for Fantastic Fan?
« Reply #14 on: September 12, 2017, 07:34:27 PM »
You will be surprised how much air those fans can pull. In our rig the rear bathroom has a sliding door. With fan on I can feel the air being drawn in below the door. There is a gap there. Those fans work pretty good!!!
2011 Winnebago 37F Class A  2012 Unlimited JK 2001 HD roadking  1964 Manx 1641cc buggy 1985 22'Lazy Daze Class C 2007 Chaparrel 26' deck boat..Thats all folks!!

99dart

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Re: Where to tap into power for Fantastic Fan?
« Reply #15 on: September 12, 2017, 10:56:00 PM »
That's encouraging to hear, John. Thanks.
2016 Thor Quantum WS31
2014 Ford Focus toad
1998 Four Winds Chateau -- sold

 

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