In the process of replacing the old Sol-Aire I also replaced several ducts and
discovered a most interesting/unusual bathroom duct "connection". My floor plan
(bath next to furnace -- plan 26-12) may be hooked up differently than yours.
Anyway, from the furnace there is a 3 1/2" duct to a toe-board register -- looks
from the outside just like all the other registers but when you remove it you
find the 2" bathroom supply hose connected into the register box with no hard
connection to the pressurized furnace supply which supplys the register box.
There is simply a deflestor which is supposed to catch some of the air forced
out of the big duct and deflect it down the small duct into the bathroom. No
wonder the bathroom never did get any air!!. Now, knowing how the thing is
plumbed I can get a considerable amount of air in the bathroom by simply putting
a cover over all or part of the register thereby creating a "hard" connection
into the bath.
Suggestion: pull the register grilles between the furnace and your bathroom and
see if there is this type of connection to your bathroom. It may be the answer
to your bath heat problems.
And while I was about it I removed the forced air return from the rear of the
coach and used the same ducting for another forced air supply. It works just
fine and I no longer have the noisy fan under by bed.
Gary
'77 Kingsley
North Bend, Oregon Coast
> Richard
>
> The duct that you found was originally an air return duct. It should have
> ended in the water tank area. The grate next to the water tank was
> for that duct to pull in return air. Since so few RVs have return air
> some repairman must have decided it was a hot air duct. I replaced
> mine with a 4 inch duct that runs almost to the bath module. Then
> the 2 inch on in. I have saved the fan that was behind the stove.
> If the 4 inch duct does not supply enough heat to the bath I am
> going to install the fan next to the water tank and put a switch on
> it. I will bet that with a 4 inch duct and the blower that close I can get
> some heat to the bath. That is what I did.
>
> Take Care
> Arch 76 GB IL
>
> In a message dated 4/19/99 10:01:28 PM Central Daylight Time,
>
> >
> > Mine was not quite empty. I found inside a duct from the furnace that
> still
> > blows hot air. There is no way for that warm air supply to enter the
> coach.
> > On the other side (where the water tank is located) is an unused warm air
> > register without a duct. The previous owner had a new furnace installed.
> > I have no idea how the warm air is supposed to jump across from that
> > enclosed compartment to the water tank side. But that's another story.
> >
discovered a most interesting/unusual bathroom duct "connection". My floor plan
(bath next to furnace -- plan 26-12) may be hooked up differently than yours.
Anyway, from the furnace there is a 3 1/2" duct to a toe-board register -- looks
from the outside just like all the other registers but when you remove it you
find the 2" bathroom supply hose connected into the register box with no hard
connection to the pressurized furnace supply which supplys the register box.
There is simply a deflestor which is supposed to catch some of the air forced
out of the big duct and deflect it down the small duct into the bathroom. No
wonder the bathroom never did get any air!!. Now, knowing how the thing is
plumbed I can get a considerable amount of air in the bathroom by simply putting
a cover over all or part of the register thereby creating a "hard" connection
into the bath.
Suggestion: pull the register grilles between the furnace and your bathroom and
see if there is this type of connection to your bathroom. It may be the answer
to your bath heat problems.
And while I was about it I removed the forced air return from the rear of the
coach and used the same ducting for another forced air supply. It works just
fine and I no longer have the noisy fan under by bed.
Gary
'77 Kingsley
North Bend, Oregon Coast
> Richard
>
> The duct that you found was originally an air return duct. It should have
> ended in the water tank area. The grate next to the water tank was
> for that duct to pull in return air. Since so few RVs have return air
> some repairman must have decided it was a hot air duct. I replaced
> mine with a 4 inch duct that runs almost to the bath module. Then
> the 2 inch on in. I have saved the fan that was behind the stove.
> If the 4 inch duct does not supply enough heat to the bath I am
> going to install the fan next to the water tank and put a switch on
> it. I will bet that with a 4 inch duct and the blower that close I can get
> some heat to the bath. That is what I did.
>
> Take Care
> Arch 76 GB IL
>
> In a message dated 4/19/99 10:01:28 PM Central Daylight Time,
>
> >
> > Mine was not quite empty. I found inside a duct from the furnace that
> still
> > blows hot air. There is no way for that warm air supply to enter the
> coach.
> > On the other side (where the water tank is located) is an unused warm air
> > register without a duct. The previous owner had a new furnace installed.
> > I have no idea how the warm air is supposed to jump across from that
> > enclosed compartment to the water tank side. But that's another story.
> >
