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Old 07-05-2013, 11:09 AM   #1
Senior Member
jnp_macklin's Avatar
Ford Super Duty Owner
Georgie Boy Owners Club
Join Date: Apr 2013
Location: Hamilton, Ohio
Posts: 116
Question Hot Lava(tory)

This may be something I can't do anything about, but I figured if anyone has experienced a similar situation, the good folks of IRV2 should be able to tell me how they made it work.

Motorhome: 1998 Georgie Boy Pursuit 33'
Chassis: Ford 460 Gas
Electric: 30amp AC power set up
Genset: Onan 4000 Gas
Rooftop AC: Duotherm 13,500 BTU non-ducted - no heat strip, yet.

There is a 4-5 inch step-up to get into the lavatory from the main floor of the coach, most likely due to the need for routing the plumbing to black & grey water tanks. This leaves a 4-5 inch gap at the bottom of the lavatory door when opened, but nothing on the top. The lavatory door appears to be a standard hollow-core door that opens away from the lavatory, and swings toward the front of the coach, blocking any and all cool air from the rooftop AC to push into the lavatory.

The rear queen bedroom, utilizes the hallway closet door, pulling double duty for privacy in the bedroom, by opening into the hall and towards the rear of the coach, and being held by a pop-catch until you push it open. On this door, the 4-5 inch gap is at the top of the door, and you can feel the cool air traveling along the top of the ceiling, and into the bedroom, even with the door closed.

If someone chose, they could open the lavatory door wide to the "stop" against the fridge, and then open the closet door to the "stop" against the rear bedroom, and would have the entire hallway for changing with privacy, without disturbing anyone else at either end of the coach.

My situation is that the lavatory in the MH does not receive any cooling from the AC unit when we are either parked or moving. Therefore, in warmer times, the temps in the bathroom are stifling when doing any kind of "personal maintenance".

I don't see any way of combating this, except by replacing the door to the lavatory with a curtain, or installing door vents through the door, and that's not exactly going to keep the "stink" where it belongs either.

Has anyone reversed the lavatory door, so that it opens away and to the *rear* of the coach? Does anyone have any other constructive ideas.

The Macklin's - 1998 Georgie Boy 'Pursuit'
Pete: Pilot/Mechanic - Jen: Navigator/Travel Planner
Taylor & Patrick - Along for the ride....
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Old 07-05-2013, 11:44 AM   #2
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Damon Owners Club
Workhorse Chassis Owner
Join Date: May 2008
Location: N. Palm Springs CA (in winter)
Posts: 2,421
Leaving the bathroom roof vent open while traveling down the road will cause a venturi effect sucking out the hot air from the bathroom.

Gasses from the bathroom rise toward the ceiling and the door keeps those smells and odors from going into and being circulated throughout your coach. A 12v motorized exhaust fan [w/remote] in the bathroom should solve your heat problem. If the bathroom door is open or ajar with the exhaust fan on, air will be pulled in from open windows and vents and or rv cabin air.

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Old 07-05-2013, 04:02 PM   #3
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Monaco Owners Club
Join Date: May 2013
Location: North Summer, South Winter
Posts: 105
We don't have this problem with the current MH, but did with our last. It was a 31' gasser, and we ended up installing a Maxxair vent cover over the bath vent (actually, all of them eventually) so we could keep it open all the time. It really made a difference when the MH was moving, sucking the air right out of that space, dragging in cooler air from the main compartment. Added a 12v vent fan, and we were set all the time - moving or parked.
Jay & Jo Couture Livin' On The Edge,
w/Dawson, our mini aussie, in a 2007 Monaco Knight 40DFT, towing a 24" Pace garage.
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