Dear John,
I agree with your thought of moving hot air that is very close to the
stove. Keep it in the duct and use one or more fans that are "in-duct"
or "booster fans" to move the extra hot air well.
I assume you still live in Secunda, South Africa. There"central
heating" systems are not common. But your solution is essentially a
small version of one. You could even have a second duct that brings
cool air from the second room back to the furnace.
Are you doing any more work on your coal TLUD stove? And could that
also be hooked up with air ducts?
Paul
Paul S. Anderson, PhD aka "Dr TLUD"
Email: [email protected] Skype: paultlud Phone: +1-309-452-7072
Website: www.drtlud.com
On 6/17/2012 9:35 AM, John Davies wrote:
Dear Martin,
The stove is a Beckers 385, with 11Kw output, for 340m3 heating area.
It has 2 air heating ducts, which heat air with the flue gas before
entering the chimney.
The problem is that it is in a room of 77M3 with a standard doorway
leading into a passage way. A fair amount of warm air circulates to
the rest of the house, but not enough to prevent hot air concentrating
in the room.
Itried blowing cold air into the room at ground level, with a standard
room fan. This made the room more comfortable, and forced warm air
into the passage way. This is not practical, and the fan mentioned
uses a fair amount of power.
I think that the way to go is to use a fan in a duct which sucks in
the hot air leaving the stove.
Thanking you,
John Davies.
It
*From:*[email protected]
[mailto:[email protected]] *On Behalf Of *Boll,
Martin Dr.
*Sent:* 15 June 2012 10:33 PM
*To:* [email protected]
*Subject:* Re: [Stoves] moving warm air
Dear John,
Your problem with too much heat in the room of the stove will be more
complex. I guess you will not solve the problem by only moving some
hot air to another room.
I guess by my experience with a big stove, that a good amount of the
heat will be released by your stove in form of radiation. If it is
like this, I guess you have to shield the surrounding of the stove a
lot from the radiation of the stove, that you will not feel so
uncomfortable hot (as in the summer-sun) and to use the radiation to
warm up a medium (air or some liquid or fast material absorbing the
heat) and bring the radiated energy in that (captured) form into
another room.
Example: some oil-filled radiators, which are electrically heated and
can be moved to another space when warmed up, to warm another room,
when brought there.
I guess it was worth a test, to concentrate the spread radiation onto
a tube by a Rinnenkollektor ( I don't know the English expression: e.g
a Rinnenkollektor could consist of a half-pipe reflector with tube in
its focus-line)
-you could test, it with a plastic dirty-water-tube cut into a 1/3
tube and lined with aluminium-foil, which concentrates the radiation
onto a blacked copper-tube. In this copper-tube you could measure the
temperature, to know if the temperature was useful for the other room.
The simpler way was, to hang close to the stove some bags filled with
material that could absorb heat, and to remove them after being
heated, to cool down in the neighbour-room.
In that time of heating the bags you could feel, if the felt
temperature in the room with the stove was agreeable. -- My idea: Hang
up some wet towels for a short time, to shield against the radiation.
So you can feel (for a short time) immediately, if the radiation makes
the feeling of too much heat or if it was the too high temperature of
the air.
I know your problem, because I have a 14.5 kW high-mass stove which is
heating a 120 m3 room. It feels feels to hot in the room, if the stove
is really good fed, and gives much heat by its big surface. (5 m2)
I thought about transporting hot air to a neighbour room to solve the
problem, but I am nearly sure, it will not solve the problem, because
the stove has a very big surface which radiates. If you would be
interested, I could give you the address of the factory in Germany, to
give you an impression of my stove to compare with yours.
Happy to have now summer-time in Germany-; but the temperatures are
actually so low, that we use a little bit the space-heating-stove.
Interested how you think about and deal with that problem.
Have a comfortable feeling by your stove.
Martin
>Message: 3
>Date: Fri, 8 Jun 2012 20:14:44 +0200
>From: "John Davies" <[email protected] <mailto:[email protected]>>
>To: "Discussion of biomass cooking stoves"
> <[email protected]
<mailto:[email protected]>>
>Subject: [Stoves] moving warm air
>Message-ID: <[email protected]
<mailto:[email protected]>>
>Content-Type: text/plain; charset="us-ascii"
>
>I have recently moved house, and have a dilemma. I have an anthracite
heater in one room which is uncomfortably warm. I wish to >move the
warm air into adjacent rooms to have a more even heating of the house.
There is an open doorway leading into a >passageway, but the air
movement is insufficient.
>
>
>My thoughts are to bore holes through the walls the size of a computer
fan and mount such fans in the holes to distribute the warm >air.
>
>
>Would this be successful ? What wattage fan would move how much air
? Is the idea viable?
>
>
>Your thoughts would be welcome.
>John Davies,
>
>Experiencing the first winter chill.
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