On Wed, 10 Mar 2004 15:50:08 +0000 (UTC), "Franz Heymann"
wrote:


"Jaques d'Alltrades" wrote in message
...
The message
from "Franz Heymann" contains these
words:

It's called solar heating with heat storage. Or if not using heat from
the
sun heat pump systems can take it from the environment directly.

But unfortunately the price of a heat pump is so high that the money
spent
in amortising it might as well be spent buying electricity ot paraffin.

You can make a heat pump for no cost at all, or very little - assuming
you can find someone with an old freezer they don't want.

That will deliver around 50 to 100 watts,

The energy delivered depends on the temperature of the heat source

which is just about the amount its
motor will need to run, so you might just as well not bother with the whole
fridge. Just install the motor and switch it on permanently. Or, easier,
just run a 100 watt bulb permanently.

What about light pollution? :-)
--

Knowledge is knowing a tomato is a fruit;
Wisdom is not putting it in a fruit salad

And to think I thought we might get some lateral thinking going on the
subject.
I know we wont be able to get all our heat in Dec. Jan for nothing but oct,
nov , Feb March and april we should be able to generate enough free heat to
carry through most nights.
No talk of Bio digesters to use grass clippings, poultry manure etc. to
produce gas for our heaters
Looks as if I will just have to press on on my own.
Thanks anyway.
--
David Hill
Abacus nurseries
www.abacus-nurseries.co.uk

"martin" wrote in message
...
On Wed, 10 Mar 2004 15:50:08 +0000 (UTC), "Franz Heymann"
wrote:


"Jaques d'Alltrades" wrote in message
...
The message
from "Franz Heymann" contains these
words:

It's called solar heating with heat storage. Or if not using heat
from
the
sun heat pump systems can take it from the environment directly.

But unfortunately the price of a heat pump is so high that the money
spent
in amortising it might as well be spent buying electricity ot
paraffin.

You can make a heat pump for no cost at all, or very little - assuming
you can find someone with an old freezer they don't want.

That will deliver around 50 to 100 watts,

The energy delivered depends on the temperature of the heat source

which is just about the amount its
motor will need to run, so you might just as well not bother with the
whole
fridge. Just install the motor and switch it on permanently. Or,
easier,
just run a 100 watt bulb permanently.

What about light pollution? :-)

I did think of saying "paint it black".

Franz

And to think I thought we might get some lateral thinking going on the
subject.
I know we wont be able to get all our heat in Dec. Jan for nothing but oct,
nov , Feb March and april we should be able to generate enough free heat to
carry through most nights.
No talk of Bio digesters to use grass clippings, poultry manure etc. to
produce gas for our heaters
Looks as if I will just have to press on on my own.
Thanks anyway.
--
David Hill
Abacus nurseries
www.abacus-nurseries.co.uk

The message
from "Franz Heymann" contains these words:

You can make a heat pump for no cost at all, or very little - assuming
you can find someone with an old freezer they don't want.

That will deliver around 50 to 100 watts, which is just about the amount its
motor will need to run, so you might just as well not bother with the whole
fridge. Just install the motor and switch it on permanently. Or, easier,
just run a 100 watt bulb permanently.

You will pump a great deal more than that, and you have the small amount
of heat generated by the motor as an added bonus.

If you have ever put your hand by the outblow of a freezer you have
started from ambient temperature you'll realise it's pushing out as much
as a small fan-heater.

--
Rusty
Open the creaking gate to make a horrid.squeak, then lower the foobar.
http://www.users.zetnet.co.uk/hi-fi/

The message
from "David Hill" contains these
words:

And to think I thought we might get some lateral thinking going on the
subject.
I know we wont be able to get all our heat in Dec. Jan for nothing but oct,
nov , Feb March and april we should be able to generate enough free heat to
carry through most nights.
No talk of Bio digesters to use grass clippings, poultry manure etc. to
produce gas for our heaters
Looks as if I will just have to press on on my own.
Thanks anyway.

The trouble with biogas digesters is that you need a high volume of
digestible stuff to make them work.

They need some heating in this climate, especially in the winter, so a
small unit could draw more energy than it produced.

You need to make a scrubber to remove the carbon dioxide from the
resulting gases, and a drier for the clean methane.

You need storage for the gas.

Assuming you get that far, you have to guard against sudden drops in
temperature, or the system sucks air in when the gas within contracts.

One of my friends used to be a Mandarin in the Agricultural Research
Council. He and a group of boffins were invited to see one of these
systems working on a big dairy farm. This was installed by a specialist
company: it wan't a DIY job.

Cold snap.

Urgent phone call on the morning of the visit - Don't come, it's blown
up! (And we're not talking 'inflated', either.)

--
Rusty
Open the creaking gate to make a horrid.squeak, then lower the foobar.
http://www.users.zetnet.co.uk/hi-fi/

On Thu, 11 Mar 2004 00:50:57 GMT, Jaques d'Alltrades
wrote:

~The message
~from "Franz Heymann" contains these words:
~
~ You can make a heat pump for no cost at all, or very little - assuming
~ you can find someone with an old freezer they don't want.
~
~ That will deliver around 50 to 100 watts, which is just about the amount its
~ motor will need to run, so you might just as well not bother with the whole
~ fridge. Just install the motor and switch it on permanently. Or, easier,
~ just run a 100 watt bulb permanently.
~
~You will pump a great deal more than that, and you have the small amount
~of heat generated by the motor as an added bonus.
~
~If you have ever put your hand by the outblow of a freezer you have
~started from ambient temperature you'll realise it's pushing out as much
~as a small fan-heater.

I keep my second freezer (bought cos of the allotment!) in my
double-glazed conservatory because of that - the heat gets reused to
help keep it frost-free.

The downside is the heat in summer is too much for the freezer - but
at least it means I have an incentive to eat all the freezer contents
before May so I can switch it down for the summer!

And because it's an upright, I don't lose surface space either - and
my african violets are always nice and warm and visible


--
jane

Don't part with your illusions. When they are gone,
you may still exist but you have ceased to live.
Mark Twain

Please remove onmaps from replies, thanks!

On Thu, 11 Mar 2004 00:50:57 GMT, Jaques d'Alltrades
wrote:

~The message
~from "Franz Heymann" contains these words:
~
~ You can make a heat pump for no cost at all, or very little - assuming
~ you can find someone with an old freezer they don't want.
~
~ That will deliver around 50 to 100 watts, which is just about the amount its
~ motor will need to run, so you might just as well not bother with the whole
~ fridge. Just install the motor and switch it on permanently. Or, easier,
~ just run a 100 watt bulb permanently.
~
~You will pump a great deal more than that, and you have the small amount
~of heat generated by the motor as an added bonus.
~
~If you have ever put your hand by the outblow of a freezer you have
~started from ambient temperature you'll realise it's pushing out as much
~as a small fan-heater.

I keep my second freezer (bought cos of the allotment!) in my
double-glazed conservatory because of that - the heat gets reused to
help keep it frost-free.

The downside is the heat in summer is too much for the freezer - but
at least it means I have an incentive to eat all the freezer contents
before May so I can switch it down for the summer!

And because it's an upright, I don't lose surface space either - and
my african violets are always nice and warm and visible


--
jane

Don't part with your illusions. When they are gone,
you may still exist but you have ceased to live.
Mark Twain

Please remove onmaps from replies, thanks!

On Thu, 11 Mar 2004 00:50:57 GMT, Jaques d'Alltrades
wrote:

~The message
~from "Franz Heymann" contains these words:
~
~ You can make a heat pump for no cost at all, or very little - assuming
~ you can find someone with an old freezer they don't want.
~
~ That will deliver around 50 to 100 watts, which is just about the amount its
~ motor will need to run, so you might just as well not bother with the whole
~ fridge. Just install the motor and switch it on permanently. Or, easier,
~ just run a 100 watt bulb permanently.
~
~You will pump a great deal more than that, and you have the small amount
~of heat generated by the motor as an added bonus.
~
~If you have ever put your hand by the outblow of a freezer you have
~started from ambient temperature you'll realise it's pushing out as much
~as a small fan-heater.

I keep my second freezer (bought cos of the allotment!) in my
double-glazed conservatory because of that - the heat gets reused to
help keep it frost-free.

The downside is the heat in summer is too much for the freezer - but
at least it means I have an incentive to eat all the freezer contents
before May so I can switch it down for the summer!

And because it's an upright, I don't lose surface space either - and
my african violets are always nice and warm and visible


--
jane

Don't part with your illusions. When they are gone,
you may still exist but you have ceased to live.
Mark Twain

Please remove onmaps from replies, thanks!

On Thu, 11 Mar 2004 00:50:57 GMT, Jaques d'Alltrades
wrote:

~The message
~from "Franz Heymann" contains these words:
~
~ You can make a heat pump for no cost at all, or very little - assuming
~ you can find someone with an old freezer they don't want.
~
~ That will deliver around 50 to 100 watts, which is just about the amount its
~ motor will need to run, so you might just as well not bother with the whole
~ fridge. Just install the motor and switch it on permanently. Or, easier,
~ just run a 100 watt bulb permanently.
~
~You will pump a great deal more than that, and you have the small amount
~of heat generated by the motor as an added bonus.
~
~If you have ever put your hand by the outblow of a freezer you have
~started from ambient temperature you'll realise it's pushing out as much
~as a small fan-heater.

I keep my second freezer (bought cos of the allotment!) in my
double-glazed conservatory because of that - the heat gets reused to
help keep it frost-free.

The downside is the heat in summer is too much for the freezer - but
at least it means I have an incentive to eat all the freezer contents
before May so I can switch it down for the summer!

And because it's an upright, I don't lose surface space either - and
my african violets are always nice and warm and visible


--
jane

Don't part with your illusions. When they are gone,
you may still exist but you have ceased to live.
Mark Twain

Please remove onmaps from replies, thanks!

"jane" wrote in message
...
On Thu, 11 Mar 2004 00:50:57 GMT, Jaques d'Alltrades
wrote:

~The message
~from "Franz Heymann" contains these
words:
~
~ You can make a heat pump for no cost at all, or very little -
assuming
~ you can find someone with an old freezer they don't want.
~
~ That will deliver around 50 to 100 watts, which is just about the
amount its
~ motor will need to run, so you might just as well not bother with the
whole
~ fridge. Just install the motor and switch it on permanently. Or,
easier,
~ just run a 100 watt bulb permanently.
~
~You will pump a great deal more than that, and you have the small amount
~of heat generated by the motor as an added bonus.
~
~If you have ever put your hand by the outblow of a freezer you have
~started from ambient temperature you'll realise it's pushing out as much
~as a small fan-heater.

I keep my second freezer (bought cos of the allotment!) in my
double-glazed conservatory because of that - the heat gets reused to
help keep it frost-free.

If you are serious about this, you should install it in the greenhouse door,
with its own door facing ourwards and open.
And make sure all the gaps left in the door are well sealed. {:-))

The downside is the heat in summer is too much for the freezer - but
at least it means I have an incentive to eat all the freezer contents
before May so I can switch it down for the summer!

And because it's an upright, I don't lose surface space either - and
my african violets are always nice and warm and visible

Franz