I have a small room with a shower stall, toilet and pedestal sink.
The floor space is about 48" x 56". It is located in the corner of
the house, so 2 walls are outside walls. The house is in western
NC. While the room is comfortable as far as air temperature, the
tile floor is cold. There is one register in the floor on one of
the outside walls. The area below is garage, so it could be
accessed from below by removing a piece of garage ceiling drywall
and insulation. I would like to use the area below the the small
bathroom as a heat plenum, hopefully warming up the floor. I know
people (including me) will say, "you can't do that ....." But in
my house and in many other houses in this area, they put the heat
registers for the kitchen and bathrooms (not this bathroom, but the
other one) in the cabinet kick plate. The duct just comes through
the floor and dies there. The air just pressurizes the "kickplate"
area and it eventually comes out of the register mounted up front.
So if I were to wall off the area directly below the floor, insult
the sides and against the garage drywall, and just like the kitchen
cabinets, let the air find its way to the register. I would have to
put a shut off on the duct for summer use or suffer an even colder
floor in the summertime. BTW, the heat comes from a heat pump with
a propane furnace for backup heat. Any comments pro or con or other
ideas?

On Feb 24, 11:23*am, Art Todesco wrote:
I have a small room with a shower stall, toilet and pedestal sink.
The floor space is about 48" x 56". *It is located in the corner of
the house, so 2 walls are outside walls. *The house is in western
NC. *While the room is comfortable as far as air temperature, the
tile floor is cold. *There is one register in the floor on one of
the outside walls. *The area below is garage, so it could be
accessed from below by removing a piece of garage ceiling drywall
and insulation. *I would like to use the area below the the small
bathroom as a heat plenum, hopefully warming up the floor. *I know
people (including me) will say, "you can't do that ....." * But in
my house and in many other houses in this area, they put the heat
registers for the kitchen and bathrooms (not this bathroom, but the
other one) in the cabinet kick plate. *The duct just comes through
the floor and dies there. *The air just pressurizes the "kickplate"
area and it eventually comes out of the register mounted up front.
So if I were to wall off the area directly below the floor, insult
the sides and against the garage drywall, and just like the kitchen
cabinets, let the air find its way to the register. *I would have to
put a shut off on the duct for summer use or suffer an even colder
floor in the summertime. *BTW, the heat comes from a heat pump with
a propane furnace for backup heat. *Any comments pro or con or other
ideas?

If you have a cold room above the garage the solution to the problem
is obvious: pull down the garage ceiling drywall, pack it solid with
insulation, spray foam or whatever, then see what other steps might
help move warm air to the room. Remember, for warm air in you need to
move cold air out.

Joe

On Feb 24, 12:23*pm, Art Todesco wrote:
I have a small room with a shower stall, toilet and pedestal sink.
The floor space is about 48" x 56". *It is located in the corner of
the house, so 2 walls are outside walls. *The house is in western
NC. *While the room is comfortable as far as air temperature, the
tile floor is cold. *There is one register in the floor on one of
the outside walls. *The area below is garage, so it could be
accessed from below by removing a piece of garage ceiling drywall
and insulation. *I would like to use the area below the the small
bathroom as a heat plenum, hopefully warming up the floor. *I know
people (including me) will say, "you can't do that ....." * But in
my house and in many other houses in this area, they put the heat
registers for the kitchen and bathrooms (not this bathroom, but the
other one) in the cabinet kick plate. *The duct just comes through
the floor and dies there. *The air just pressurizes the "kickplate"
area and it eventually comes out of the register mounted up front.
So if I were to wall off the area directly below the floor, insult
the sides and against the garage drywall, and just like the kitchen
cabinets, let the air find its way to the register. *I would have to
put a shut off on the duct for summer use or suffer an even colder
floor in the summertime. *BTW, the heat comes from a heat pump with
a propane furnace for backup heat. *Any comments pro or con or other
ideas?

Using the space between framing as hvac duct work is done sometimes.
Normally it is interior wall spaces. You need to make sure the ends
are sealed or add blocking yourself. I would try to put some minimal
insulation on the garage ceiling side like maybe foam sheet or
something.

One of the problems created by doing this is wider temp changes where
the framing is located. This could result in more shrink and
expanding depending on temp and humidity.

On Feb 24, 12:53*pm, jamesgangnc wrote:
On Feb 24, 12:23*pm, Art Todesco wrote:





I have a small room with a shower stall, toilet and pedestal sink.
The floor space is about 48" x 56". *It is located in the corner of
the house, so 2 walls are outside walls. *The house is in western
NC. *While the room is comfortable as far as air temperature, the
tile floor is cold. *There is one register in the floor on one of
the outside walls. *The area below is garage, so it could be
accessed from below by removing a piece of garage ceiling drywall
and insulation. *I would like to use the area below the the small
bathroom as a heat plenum, hopefully warming up the floor. *I know
people (including me) will say, "you can't do that ....." * But in
my house and in many other houses in this area, they put the heat
registers for the kitchen and bathrooms (not this bathroom, but the
other one) in the cabinet kick plate. *The duct just comes through
the floor and dies there. *The air just pressurizes the "kickplate"
area and it eventually comes out of the register mounted up front.
So if I were to wall off the area directly below the floor, insult
the sides and against the garage drywall, and just like the kitchen
cabinets, let the air find its way to the register. *I would have to
put a shut off on the duct for summer use or suffer an even colder
floor in the summertime. *BTW, the heat comes from a heat pump with
a propane furnace for backup heat. *Any comments pro or con or other
ideas?

Using the space between framing as hvac duct work is done sometimes.
Normally it is interior wall spaces. *You need to make sure the ends
are sealed or add blocking yourself. *I would try to put some minimal
insulation on the garage ceiling side like maybe foam sheet or
something.

One of the problems created by doing this is wider temp changes where
the framing is located. *This could result in more shrink and
expanding depending on temp and humidity.- Hide quoted text -

- Show quoted text -

Here's the problems I see with this approach:

Normally there aren't heating ducts in unheated garage space, so where
is the hot air coming from?

The joists have to run in the right direction

You only get one bay's worth of heating area between joists. To do
the
whole bathroom would require several bays.

The air has to come from and go somewhere as it flows through the
bay. Where does it go?

Given the above, I would think a better solution would be electric
radiant
heat, which could be easily installed exactly where needed. Given
it's only
supplemental heat for one room, the operating cost shouldn't be very
high.
You;d have a control, timer, etc in the bathroom.

Given the above, I would think a better solution would be electric
radiant
heat, which could be easily installed exactly where needed. *Given
it's only
*supplemental heat for one room, the operating cost shouldn't be very
high.
You;d have a control, timer, etc in the bathroom.-

yeah my suggested solution too, easy to install, just run when needed.

if the OP were putting in a new ceramic floor they could imbeed
electric floor heat grid, but its probably not worth the effort.

or a combo fan heater for the cieling. they really warm things up

Art Todesco wrote:
I have a small room with a shower stall, toilet and pedestal sink.
The floor space is about 48" x 56". It is located in the corner of
the house, so 2 walls are outside walls. The house is in western
NC. While the room is comfortable as far as air temperature, the
tile floor is cold. There is one register in the floor on one of
the outside walls. The area below is garage, so it could be
accessed from below by removing a piece of garage ceiling drywall
and insulation. I would like to use the area below the the small
bathroom as a heat plenum, hopefully warming up the floor. I know
people (including me) will say, "you can't do that ....." But in
my house and in many other houses in this area, they put the heat
registers for the kitchen and bathrooms (not this bathroom, but the
other one) in the cabinet kick plate. The duct just comes through
the floor and dies there. The air just pressurizes the "kickplate"
area and it eventually comes out of the register mounted up front.
So if I were to wall off the area directly below the floor, insult
the sides and against the garage drywall, and just like the kitchen
cabinets, let the air find its way to the register. I would have to
put a shut off on the duct for summer use or suffer an even colder
floor in the summertime. BTW, the heat comes from a heat pump with
a propane furnace for backup heat. Any comments pro or con or other
ideas?

Insulate the area under the floor, so the floor will be the same temp as the
room. Doing what you suggest will also dump significant heat to the garage.

Art Todesco wrote:
I have a small room with a shower stall, toilet and pedestal sink.
The floor space is about 48" x 56". It is located in the corner of
the house, so 2 walls are outside walls. The house is in western
NC. While the room is comfortable as far as air temperature, the
tile floor is cold.

Throw rug.

Or slippers.

First thought to me, is insulation under the floor. Second
thought, is that when I was a kid, we spent time in a motel
that had a heat lamp in the ceiling. I thought that was
really neat idea. I wnder if they are still available? You
could turn on the heat lamp to warm your insullated floor.

The heat run under the floor sounds possible. Like you say,
damper it so you aren't AC your floor in the summer.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"Art Todesco" wrote in message
...
I have a small room with a shower stall, toilet and pedestal
sink.
The floor space is about 48" x 56". It is located in the
corner of
the house, so 2 walls are outside walls. The house is in
western
NC. While the room is comfortable as far as air
temperature, the
tile floor is cold. There is one register in the floor on
one of
the outside walls. The area below is garage, so it could be
accessed from below by removing a piece of garage ceiling
drywall
and insulation. I would like to use the area below the the
small
bathroom as a heat plenum, hopefully warming up the floor.
I know
people (including me) will say, "you can't do that ....."
But in
my house and in many other houses in this area, they put the
heat
registers for the kitchen and bathrooms (not this bathroom,
but the
other one) in the cabinet kick plate. The duct just comes
through
the floor and dies there. The air just pressurizes the
"kickplate"
area and it eventually comes out of the register mounted up
front.
So if I were to wall off the area directly below the floor,
insult
the sides and against the garage drywall, and just like the
kitchen
cabinets, let the air find its way to the register. I would
have to
put a shut off on the duct for summer use or suffer an even
colder
floor in the summertime. BTW, the heat comes from a heat
pump with
a propane furnace for backup heat. Any comments pro or con
or other
ideas?

On Thu, 24 Feb 2011 16:31:30 -0600, "HeyBub"
wrote:

Art Todesco wrote:
I have a small room with a shower stall, toilet and pedestal sink.
The floor space is about 48" x 56". It is located in the corner of
the house, so 2 walls are outside walls. The house is in western
NC. While the room is comfortable as far as air temperature, the
tile floor is cold.

Throw rug.

Oh, that would be to easy. It was my same thought to use a rug. I'm
actually allergic to work.....

On Feb 24, 5:42*pm, Oren wrote:
On Thu, 24 Feb 2011 16:31:30 -0600, "HeyBub"
wrote:

Art Todesco wrote:
I have a small room with a shower stall, toilet and pedestal sink.
The floor space is about 48" x 56". *It is located in the corner of
the house, so 2 walls are outside walls. *The house is in western
NC. *While the room is comfortable as far as air temperature, the
tile floor is cold.

Throw rug.

Oh, that would be to easy. *It was my same thought to use a rug. *I'm
actually allergic to work.....

Do you also insult your floors?

On Feb 24, 12:23*pm, Art Todesco wrote:
I have a small room with a shower stall, toilet and pedestal sink.
The floor space is about 48" x 56". *It is located in the corner of
the house, so 2 walls are outside walls. *The house is in western
NC. *While the room is comfortable as far as air temperature, the
tile floor is cold. *There is one register in the floor on one of
the outside walls. *The area below is garage, so it could be
accessed from below by removing a piece of garage ceiling drywall
and insulation. *I would like to use the area below the the small
bathroom as a heat plenum, hopefully warming up the floor. *I know
people (including me) will say, "you can't do that ....." * But in
my house and in many other houses in this area, they put the heat
registers for the kitchen and bathrooms (not this bathroom, but the
other one) in the cabinet kick plate. *The duct just comes through
the floor and dies there. *The air just pressurizes the "kickplate"
area and it eventually comes out of the register mounted up front.
So if I were to wall off the area directly below the floor, insult
the sides and against the garage drywall, and just like the kitchen
cabinets, let the air find its way to the register. *I would have to
put a shut off on the duct for summer use or suffer an even colder
floor in the summertime. *BTW, the heat comes from a heat pump with
a propane furnace for backup heat. *Any comments pro or con or other
ideas?


LOL... Just get fluffier bathroom area rugs...

~~ Evan

On Thu, 24 Feb 2011 16:26:46 -0800 (PST), "hr(bob) "
wrote:

On Feb 24, 5:42*pm, Oren wrote:
On Thu, 24 Feb 2011 16:31:30 -0600, "HeyBub"
wrote:

Art Todesco wrote:
I have a small room with a shower stall, toilet and pedestal sink.
The floor space is about 48" x 56". *It is located in the corner of
the house, so 2 walls are outside walls. *The house is in western
NC. *While the room is comfortable as far as air temperature, the
tile floor is cold.

Throw rug.

Oh, that would be to easy. *It was my same thought to use a rug. *I'm
actually allergic to work.....

Do you also insult your floors?

Can you rephrase your question?

On Feb 24, 7:09*pm, Oren wrote:
On Thu, 24 Feb 2011 16:26:46 -0800 (PST), "hr(bob) "





wrote:
On Feb 24, 5:42 pm, Oren wrote:
On Thu, 24 Feb 2011 16:31:30 -0600, "HeyBub"
wrote:

Art Todesco wrote:
I have a small room with a shower stall, toilet and pedestal sink.
The floor space is about 48" x 56". It is located in the corner of
the house, so 2 walls are outside walls. The house is in western
NC. While the room is comfortable as far as air temperature, the
tile floor is cold.

Throw rug.

Oh, that would be to easy. It was my same thought to use a rug. I'm
actually allergic to work.....

Do you also insult your floors?

Can you rephrase your question?- Hide quoted text -

- Show quoted text -

The op referred to "insult" ing the sides of the space, he meant
"insulat"ing the sides. Since we are former co-workers from many
years ago, the OP knew I was trying to be humerous. I'll try to do
better next time.

On 2/24/2011 12:23 PM, Art Todesco wrote:
I have a small room with a shower stall, toilet and pedestal sink. The
floor space is about 48" x 56". It is located in the corner of the
house, so 2 walls are outside walls. The house is in western NC. While
the room is comfortable as far as air temperature, the tile floor is
cold. There is one register in the floor on one of the outside walls.
The area below is garage, so it could be accessed from below by removing
a piece of garage ceiling drywall and insulation. I would like to use
the area below the the small bathroom as a heat plenum, hopefully
warming up the floor. I know people (including me) will say, "you can't
do that ....." But in my house and in many other houses in this area,
they put the heat registers for the kitchen and bathrooms (not this
bathroom, but the other one) in the cabinet kick plate. The duct just
comes through the floor and dies there. The air just pressurizes the
"kickplate" area and it eventually comes out of the register mounted up
front. So if I were to wall off the area directly below the floor,
insult the sides and against the garage drywall, and just like the
kitchen cabinets, let the air find its way to the register. I would have
to put a shut off on the duct for summer use or suffer an even colder
floor in the summertime. BTW, the heat comes from a heat pump with a
propane furnace for backup heat. Any comments pro or con or other ideas?
You are considering a very complicated solution when there is a much
simpler one. You say that the room temperature is comfortable; your
only complaint is that the tile floor is cold. Get a mildew resistant
area rug and if necessary, cut away the part of the rug that otherwise
would cover the floor register. Problem solved.

wrote:
On Feb 24, 12:53 pm, jamesgangnc wrote:
On Feb 24, 12:23 pm, Art Todesco wrote:





I have a small room with a shower stall, toilet and pedestal sink.
The floor space is about 48" x 56". It is located in the corner of
the house, so 2 walls are outside walls. The house is in western
NC. While the room is comfortable as far as air temperature, the
tile floor is cold. There is one register in the floor on one of
the outside walls. The area below is garage, so it could be
accessed from below by removing a piece of garage ceiling drywall
and insulation. I would like to use the area below the the small
bathroom as a heat plenum, hopefully warming up the floor. I know
people (including me) will say, "you can't do that ....." But in
my house and in many other houses in this area, they put the heat
registers for the kitchen and bathrooms (not this bathroom, but the
other one) in the cabinet kick plate. The duct just comes through
the floor and dies there. The air just pressurizes the "kickplate"
area and it eventually comes out of the register mounted up front.
So if I were to wall off the area directly below the floor, insult
the sides and against the garage drywall, and just like the kitchen
cabinets, let the air find its way to the register. I would have to
put a shut off on the duct for summer use or suffer an even colder
floor in the summertime. BTW, the heat comes from a heat pump with
a propane furnace for backup heat. Any comments pro or con or other
ideas?
Using the space between framing as hvac duct work is done sometimes.
Normally it is interior wall spaces. You need to make sure the ends
are sealed or add blocking yourself. I would try to put some minimal
insulation on the garage ceiling side like maybe foam sheet or
something.

One of the problems created by doing this is wider temp changes where
the framing is located. This could result in more shrink and
expanding depending on temp and humidity.- Hide quoted text -

- Show quoted text -

Here's the problems I see with this approach:

Normally there aren't heating ducts in unheated garage space, so where
is the hot air coming from?

The joists have to run in the right direction

You only get one bay's worth of heating area between joists. To do
the
whole bathroom would require several bays.

The air has to come from and go somewhere as it flows through the
bay. Where does it go?

Given the above, I would think a better solution would be electric
radiant
heat, which could be easily installed exactly where needed. Given
it's only
supplemental heat for one room, the operating cost shouldn't be very
high.
You;d have a control, timer, etc in the bathroom.

I agree that using the hot air system is not likely practical, and that
electric might be the best fix (other than a rug). I think there are
electric panels that mount to the bottom of a subfloor to heat the
floor. Like trader suggested this probably has to be installed in
multiple joist spaces.

Maybe a plug-in (GFCIed) electric heater blowing across the floor when
(before) you use the bathroom?

If you walk on the floor with bare feet the floor has to be warmer than
the walls or air because you get real good heat transfer.

--
bud--

wrote:
years ago I was single and lived alone, would leave furnace set at 50
most days.

but i could come home shower and still leave furnace set at 50.

come home leave house cold, turn on shower, close door warm up
bathroom, then shower, nice warm and comfy.

cost? just some extra hot water... which also adds huidity to home.

i would turn heat up at night to 62 since i spent so little time
here....

later i got a electric blanket and often let home cold at night

I have 2 comforters and am good down to 50 or less.