24 VDC appliances?
 

Clams Canino wrote:

If you recall the heritage of the Volkswagon, it's no surprise it tried to
gas you.

-W


"Larry Weiss" wrote in message
...

Woah! I had one of those Beetles way back then. It leaked CO so bad it
nearly
killed me. I would worry about any heating system that utilizes a heat
exchanger off the exhaust manifolds.

Larry Weiss
"...Ever After!"
"a little after..."





I have a vague memory of my Model 411 (well, something like that)
burning raw gasoline to make heat. But perhaps my memory is playing me
tricks.



--
Email sent to is never read.

24 VDC appliances?
 

The original responder should have said you got 'instant heat' if you lived
in a moderate climate. In Alaska, I had a "gas heater" in my bug and my VW
van too. It was the only way to get enough heat out of those air-cooled
vehicles to defrost the windows, let alone give you more than just a cold
blast of air through the vents.

In the bug, the gas heater sat under the hood (trunk in front). Quite an
interesting heater too. It had one 12-volt motor, which spun the air
blower, a fuel pump, and a cam-driven set of points. The air blower blew
air over a combustion chamber and into the car's heater vent system. The
fuel pump pumped fuel out of the gas tank through an atomizing nozzle into
the combustion chamber. The set of points ran switched-DC through a regular
automotive coil to produce a high-voltage pulsed DC that continually sparked
a huge spark gap (about 1/4") on a special spark plug. Pretty simple rig.
Air came into the combustion chamber and the exhaust went out a pipe into
the left front wheel well. If you had the wheel turned hard left and took
too long getting going, you'd smell burning rubber from the tire standing
under the exhaust too long. The heater didn't get hard to start until it
was about -20 F or so, but it would usually start eventually (after
producing a lot of black smoke). The gas heater in the van was a bit more
sophisticated but used the same principles of operation, but the air came in
from inside the van and out an exhaust under the van. The heater was
mounted under the driver's seat.

Brian

--
My boat project: http://www.advantagecomposites.com/tongass


"Harry Krause" wrote in message
...
Clams Canino wrote:

If you recall the heritage of the Volkswagon, it's no surprise it tried
to
gas you.

-W


"Larry Weiss" wrote in message
...

Woah! I had one of those Beetles way back then. It leaked CO so bad
it
nearly
killed me. I would worry about any heating system that utilizes a heat
exchanger off the exhaust manifolds.

Larry Weiss
"...Ever After!"
"a little after..."





I have a vague memory of my Model 411 (well, something like that)
burning raw gasoline to make heat. But perhaps my memory is playing me
tricks.



--
Email sent to is never read.

24 VDC appliances?
 

The original responder should have said you got 'instant heat' if you lived
in a moderate climate. In Alaska, I had a "gas heater" in my bug and my VW
van too. It was the only way to get enough heat out of those air-cooled
vehicles to defrost the windows, let alone give you more than just a cold
blast of air through the vents.

In the bug, the gas heater sat under the hood (trunk in front). Quite an
interesting heater too. It had one 12-volt motor, which spun the air
blower, a fuel pump, and a cam-driven set of points. The air blower blew
air over a combustion chamber and into the car's heater vent system. The
fuel pump pumped fuel out of the gas tank through an atomizing nozzle into
the combustion chamber. The set of points ran switched-DC through a regular
automotive coil to produce a high-voltage pulsed DC that continually sparked
a huge spark gap (about 1/4") on a special spark plug. Pretty simple rig.
Air came into the combustion chamber and the exhaust went out a pipe into
the left front wheel well. If you had the wheel turned hard left and took
too long getting going, you'd smell burning rubber from the tire standing
under the exhaust too long. The heater didn't get hard to start until it
was about -20 F or so, but it would usually start eventually (after
producing a lot of black smoke). The gas heater in the van was a bit more
sophisticated but used the same principles of operation, but the air came in
from inside the van and out an exhaust under the van. The heater was
mounted under the driver's seat.

Brian

--
My boat project: http://www.advantagecomposites.com/tongass


"Harry Krause" wrote in message
...
Clams Canino wrote:

If you recall the heritage of the Volkswagon, it's no surprise it tried
to
gas you.

-W


"Larry Weiss" wrote in message
...

Woah! I had one of those Beetles way back then. It leaked CO so bad
it
nearly
killed me. I would worry about any heating system that utilizes a heat
exchanger off the exhaust manifolds.

Larry Weiss
"...Ever After!"
"a little after..."





I have a vague memory of my Model 411 (well, something like that)
burning raw gasoline to make heat. But perhaps my memory is playing me
tricks.



--
Email sent to is never read.

24 VDC appliances?
 

On Mon, 19 Jan 2004 18:13:11 -0500, Harry Krause
wrote:

I have a vague memory of my Model 411 (well, something like that)
burning raw gasoline to make heat. But perhaps my memory is playing me
tricks.

=================================

Not sure about the 411 but on the Beetle the gas fired heater was an
optional (and popular) extra. It used to fit about where the glove
compartment should have been if my memory is correct. One of my
colleagues when I worked at Cornell U back in the 60s was a bit of a
VW fanatic. He was always collecting heaters and other accessories
from where ever he could find them.

24 VDC appliances?
 

On Mon, 19 Jan 2004 18:13:11 -0500, Harry Krause
wrote:

I have a vague memory of my Model 411 (well, something like that)
burning raw gasoline to make heat. But perhaps my memory is playing me
tricks.

=================================

Not sure about the 411 but on the Beetle the gas fired heater was an
optional (and popular) extra. It used to fit about where the glove
compartment should have been if my memory is correct. One of my
colleagues when I worked at Cornell U back in the 60s was a bit of a
VW fanatic. He was always collecting heaters and other accessories
from where ever he could find them.

24 VDC appliances?
 

"Morex Support" wrote in message . cable.rogers.com...
Fatal Error.
The heating element is resistive. 120V 2KW element is approx 7 ohms. Reduce
voltage to 24 v and current draw drops to 3.5 amps. Power is not a constant.

I don't recall anyone suggesting to run a 2kW, 120V heating element
directly off of 24V. The question was to run an inverter on 24V to
make 120V, or to obtain a 2kW, 24V element (0.288 ohms).

%mod%

24 VDC appliances?
 

"Morex Support" wrote in message . cable.rogers.com...
Fatal Error.
The heating element is resistive. 120V 2KW element is approx 7 ohms. Reduce
voltage to 24 v and current draw drops to 3.5 amps. Power is not a constant.

I don't recall anyone suggesting to run a 2kW, 120V heating element
directly off of 24V. The question was to run an inverter on 24V to
make 120V, or to obtain a 2kW, 24V element (0.288 ohms).

%mod%

24 VDC appliances?
 

x-no-archive:yes


Larry Weiss wrote:

Rod McInnis wrote:

the old Volkswagon Beetles used a heat exchanger off the exhaust manifolds
to heat the car! It was actually pretty nice on cold mornings, as the
heater worked almost instantly after starting the car.

Woah! I had one of those Beetles way back then. It leaked CO so bad it nearly
killed me. I would worry about any heating system that utilizes a heat
exchanger off the exhaust manifolds.

Well you do need to maintain your exhaust system of course. We had
one of those heat exchangers (still do) in one of the 1932 Plymouths.
There was just a hole in the firewall for the duct, so the passenger
got pretty hot, and the driver stayed cold. I used to deflect the
heat with a clipboard (this was in 1964, and not in 1932 BTW)

grandma Rosalie

24 VDC appliances?
 

x-no-archive:yes


Larry Weiss wrote:

Rod McInnis wrote:

the old Volkswagon Beetles used a heat exchanger off the exhaust manifolds
to heat the car! It was actually pretty nice on cold mornings, as the
heater worked almost instantly after starting the car.

Woah! I had one of those Beetles way back then. It leaked CO so bad it nearly
killed me. I would worry about any heating system that utilizes a heat
exchanger off the exhaust manifolds.

Well you do need to maintain your exhaust system of course. We had
one of those heat exchangers (still do) in one of the 1932 Plymouths.
There was just a hole in the firewall for the duct, so the passenger
got pretty hot, and the driver stayed cold. I used to deflect the
heat with a clipboard (this was in 1964, and not in 1932 BTW)

grandma Rosalie

Not to mention that the damn things rusted thru quickly, leaking exhaust
into the car.

del cecchi wrote:

"Rod McInnis" wrote in message
...

"Larry W4CSC" wrote in message
...


I've never figured out why boats in cold climates waste all this
energy going out the exhaust. It's SO easy to make a cast iron heat
exchanger in a dry stack, right next to...or even right IN the
exhaust
manifold that will just roast your ears with free heat.

the old Volkswagon Beetles used a heat exchanger off the exhaust
manifolds
to heat the car! It was actually pretty nice on cold mornings, as the
heater worked almost instantly after starting the car.

Are you insane? Suffering from Amnesia? We had one of those Beetles in
Minnesota from 1973 until 1985. My wife used to wonder why the other
people in the grocery store weren't wearing snowmobile suits. We
learned to drive one handed so we could scrape the inside of the
windshield with the other. Do you realize how long it takes to heat a
piece of cast iron and the sheet metal floorpan duct when it starts out
at zero, and the heat is coming from 750cc of motor (there were two, so
each only got half the exhaust)

Sheeesh.

del cecchi