Posted by Joe Fischer on February 15, 2007, 3:16 am
On Thu, 15 Feb 2007 07:11:44 +0000, Eeyore
>Joe Fischer wrote:
>> >I'we got an AIR to AIR heatpump that 3.xx* at 7c(I think) It's not as
>> >efficient when temperatures drop bellow zero, but it's suposed to have
>> >a COP of 2 with outside temperature of -10c
>> >
>> >*Don,t remeber exactely, but it gives out 6300Kw and uses 1850Kw
>>
>> That seems small,
>It sounds good to me ! I reckon I could keep my house warm with that.
>Graham
Sure, in normal weather there, but here, my 75,000
BTU/hour vented space heater has a problem keeping
two rooms warm when it is 10 below F.
At 32 F (0 C), my room stays warm with about
3 or 4 KW, but that is almost constant, it doesn't cycle
much.
This summer, when I can turn off the gas meter
if I need to and not need gas heat, I plan to build a
platform to set my 35,000 BTU vented space heater
so it is high enough for me to work on it without
laying on the floor.
I want to get a couple of vent pipe heat
exchangers to make it more efficient, and will
try to figure a way to use outside air for the flame.
But I still want a small heat pump, a split
unit that I can install myself, and it can be a heat
only unit, if they make them.
Joe Fischer
Posted by Eeyore on February 15, 2007, 5:12 am
Joe Fischer wrote:
> >Joe Fischer wrote:
> >> >I'we got an AIR to AIR heatpump that 3.xx* at 7c(I think) It's not as
> >> >efficient when temperatures drop bellow zero, but it's suposed to have
> >> >a COP of 2 with outside temperature of -10c
> >> >
> >> >*Don,t remeber exactely, but it gives out 6300Kw and uses 1850Kw
> >>
> >> That seems small,
> >
> >It sounds good to me ! I reckon I could keep my house warm with that.
> >Graham
> Sure, in normal weather there, but here, my 75,000
> BTU/hour vented space heater has a problem keeping
> two rooms warm when it is 10 below F.
That clearly means you have poor insulation.
It'll be hugely more effective (and cheaper) to fix the insulation problem than
anything else.
Graham
Posted by Trygve Lillefosse on February 15, 2007, 1:30 pm
On Wed, 14 Feb 2007 20:00:08 -0500, Joe Fischer
>On Wed, 14 Feb 2007 19:47:04 +0100, Trygve Lillefosse
>>I'we got an AIR to AIR heatpump that 3.xx* at 7c(I think) It's not as
>>efficient when temperatures drop bellow zero, but it's suposed to have
>>a COP of 2 with outside temperature of -10c
>>
>>*Don,t remeber exactely, but it gives out 6300Kw and uses 1850Kw
> That seems small, but I like the idea of a unit
>that size, in fact, I would like to buy a one-way heat pump
>that size, for heat only, a split unit could be built for just
>a little more than a window air conditioner.
It can be set to heat, cool or mix(will heet/cool as needed to keep
set set temp.)
It should be bug enough to heat more or less the whole of my house.
Witch is a 150M2 wooden house with poor isolation.
BTW: it cost aprox U$ 1750
> I hope they are available, but maybe not, the
>engineers are designing everything much more
>complicated than needed.
You also get split units, witch can heat or cool several rooms/floors
at once.
--
SEE YA !!!
Trygve Lillefosse
AKA - Malawi, The Fisher King
Posted by N9WOS on February 15, 2007, 7:44 pm
> >>*Don,t remeber exactely, but it gives out 6300Kw and uses 1850Kw
> >
> > That seems small, but I like the idea of a unit
> >that size, in fact, I would like to buy a one-way heat pump
> >that size, for heat only, a split unit could be built for just
> >a little more than a window air conditioner.
> It can be set to heat, cool or mix(will heet/cool as needed to keep
> set set temp.)
> It should be bug enough to heat more or less the whole of my house.
> Witch is a 150M2 wooden house with poor isolation.
> BTW: it cost aprox U$ 1750
> > I hope they are available, but maybe not, the
> >engineers are designing everything much more
> >complicated than needed.
> You also get split units, witch can heat or cool several rooms/floors
> at once.
Yikes....... That is a bit steep compared to the prices I have seen for low
end stuff.
That equates to about 18000BTU
Window heat pumps of that size have been on the US market for a while now.
just search for.
Amana
AH093A35MA
AH123A35MA
PBH093A35MA
PBH113A35MA
AH183A35MA
Price range $430 to $600
GE
AJHS10DCC
Price $870
Friedrich
YS09L10
YS13L33
YM18L34
YL24L35
Price range $950 to $1600
Here are two online stores that I know about, that sell through the wall
heat pumps.
The stores that I used to make the list above.
http://www.ajmadison.com/
Home > Air Conditioners > Window/Wall Air Conditioners
http://www.ajmadison.com/b.php/Window_Wall+Air+Conditioners/Nf~_cooling_capacity |BTWN+8501+12500;propname_cooling_capacity~Cooling+Capacity;N~57
http://www.amroyal.com/
Air Conditioners > Heat and Cool Air Conditioners > Residential Heat and
Cool Units >
http://www.amroyal.com/index.php?cmd%3Dcategories%26category%3D20%26name%3DResidential+Heat+and+Cool+Units
Posted by N9WOS on February 15, 2007, 8:25 pm
More links.
http://www.airconditioner.com/ROOM_HEAT_AIR_CONDITIONERS.asp
http://www.air-n-water.com/product/KY-34.html
http://secure.data-comm.com/GL/Search.bok?category=HVAC%3AA%2FC+Refrigeration%3AWall+Air+Conditioners
A froogle search turns up a bunch.
http://froogle.google.com/froogle?q=window+%22heat+pump%22&hl=en&btnG=Search
Sizes down to 6000BTU
XML site map
>> >I'we got an AIR to AIR heatpump that 3.xx* at 7c(I think) It's not as
>> >efficient when temperatures drop bellow zero, but it's suposed to have
>> >a COP of 2 with outside temperature of -10c
>> >
>> >*Don,t remeber exactely, but it gives out 6300Kw and uses 1850Kw
>>
>> That seems small,
>It sounds good to me ! I reckon I could keep my house warm with that.
>Graham