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Mr. Slim Ductless heating and airconditioning

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Mr. Slim Ductless heating and airconditioning John A Reichert 12-09-2006
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Posted by Steve Barker LT on December 9, 2006, 4:09 pm
All's I can ask you about them is have you priced them? And most of the
models are only good for one room.

--
Steve Barker



> Does anyone have experience with Mr. Slim, a unit made by Mitsubishi
> Electric used for heating and cooling small areas? This a ductless unit.
> I want to supplement the heating and cooling in a kitchen. The Kitchen is
> over a crawlspace and the longest distance from the central
> cooling/heating unit. The kitchen faces the west and northwest direction.
> Complete windows in that direction. The room is cool in the winter and
> warmer than desired in the summer. To have the kitchen comfortable in the
> winter, the entire house temperature would need to be increased or just
> the opposite in the summer.
>
> Thanks
> John
>



Posted by Paul M. Eldridge on December 9, 2006, 7:47 pm
Hi John,

I installed a 14,000 BTU/H ductless heat pump as a supplemental heat
source for my home and I couldn't be happier with its performance.
Last year, it reduced my fuel oil consumption by just over 1,100
litres, for a net savings of $574.00.

http://server4.pictiger.com/img/264069/picture-hosting/heat-pump.php

This small unit is capable of heating my entire home (a 2,500 sq. ft.
Cape Cod) until the outside temperature falls below -2C (28F). Even
more amazingly, at -10C (14F) -- effectively, the lower operating
range for this particular model -- the heat it provides is one third
less costly than oil and about forty per cent less expensive than
electric resistance [I currently pay 10.13 cents per kWh for
electricity and, as of my last fill, 81.9 cents per litre for heating
oil; my boiler has a AFUE rating of 82 per cent.]

I should add that the HSPF (heating season performance factor) for
this model is 7.2 and I believe the new minimum standard is now 7.7.

I opted for a Friedrich and paid $2,100.00 CDN ($1,800.00 US),
installed, including taxes. At current energy costs, it should pay
for itself within three to four years.

Cheers,
Paul

On Sat, 9 Dec 2006 09:06:48 -0500, "John A Reichert"

>Does anyone have experience with Mr. Slim, a unit made by Mitsubishi
>Electric used for heating and cooling small areas? This a ductless unit. I
>want to supplement the heating and cooling in a kitchen. The Kitchen is
>over a crawlspace and the longest distance from the central cooling/heating
>unit. The kitchen faces the west and northwest direction. Complete windows
>in that direction. The room is cool in the winter and warmer than desired in
>the summer. To have the kitchen comfortable in the winter, the entire house
>temperature would need to be increased or just the opposite in the summer.
>
>Thanks
>John
>


Posted by John A Reichert on December 9, 2006, 8:50 pm
Paul, Is it diffult to installed? I have on old in-the-wall Dayton Electric
Heater which we don't use mostly because it is too noisy. This unit could
be removed, the hole patch with sheet rock and the electric service used for
the ductless heater.
John

> Hi John,
>
> I installed a 14,000 BTU/H ductless heat pump as a supplemental heat
> source for my home and I couldn't be happier with its performance.
> Last year, it reduced my fuel oil consumption by just over 1,100
> litres, for a net savings of $574.00.
>
> http://server4.pictiger.com/img/264069/picture-hosting/heat-pump.php
>
> This small unit is capable of heating my entire home (a 2,500 sq. ft.
> Cape Cod) until the outside temperature falls below -2C (28F). Even
> more amazingly, at -10C (14F) -- effectively, the lower operating
> range for this particular model -- the heat it provides is one third
> less costly than oil and about forty per cent less expensive than
> electric resistance [I currently pay 10.13 cents per kWh for
> electricity and, as of my last fill, 81.9 cents per litre for heating
> oil; my boiler has a AFUE rating of 82 per cent.]
>
> I should add that the HSPF (heating season performance factor) for
> this model is 7.2 and I believe the new minimum standard is now 7.7.
>
> I opted for a Friedrich and paid $2,100.00 CDN ($1,800.00 US),
> installed, including taxes. At current energy costs, it should pay
> for itself within three to four years.
>
> Cheers,
> Paul
>
> On Sat, 9 Dec 2006 09:06:48 -0500, "John A Reichert"
>
>>Does anyone have experience with Mr. Slim, a unit made by Mitsubishi
>>Electric used for heating and cooling small areas? This a ductless unit.
>>I
>>want to supplement the heating and cooling in a kitchen. The Kitchen is
>>over a crawlspace and the longest distance from the central
>>cooling/heating
>>unit. The kitchen faces the west and northwest direction. Complete
>>windows
>>in that direction. The room is cool in the winter and warmer than desired
>>in
>>the summer. To have the kitchen comfortable in the winter, the entire
>>house
>>temperature would need to be increased or just the opposite in the summer.
>>
>>Thanks
>>John
>>
>



Posted by Paul M. Eldridge on December 9, 2006, 9:05 pm
Hi John,

I confess I'm one chromosome short of the village idiot when it comes
to anything like this, so I had a licensed a/c tech who is familiar
with these systems install it for me. Labour and ancillary materials
came to about $400.00 CDN as I recall, which I consider money well
spent. Truth is, I don't have the knowledge, practical skills, tools
and comfort level to work on refrigeration equipment.

Best regards,
Paul

On Sat, 9 Dec 2006 20:50:50 -0500, "John A Reichert"

>Paul, Is it diffult to installed? I have on old in-the-wall Dayton Electric
>Heater which we don't use mostly because it is too noisy. This unit could
>be removed, the hole patch with sheet rock and the electric service used for
>the ductless heater.
>John

Posted by DT on December 10, 2006, 9:39 am

>Paul, Is it diffult to installed? I have on old in-the-wall Dayton Electric
>Heater which we don't use mostly because it is too noisy. This unit could
>be removed, the hole patch with sheet rock and the electric service used for
>the ductless heater.


They aren't real hard to install as long as you get a kit that is pre-charged
and comes with all the wires and correct length tubing. You need a 2 inch hole
in the wall near the ceiling. The power goes to the outdoor unit with a
disconnect nearby usually required by local code. A power cable and control
cable run from the outdoor unit to the indoor unit, along with the two copper
lines. A condensate drip line comes back out of the indoor unit and goes to a
drain.

But, and this may be a big factor for you, it will not be factory guaranteed
unless installed by a licensed tech. I would recommend it be professionally
installed.

I have some background (and equipment) in automotive AC so I went ahead and did
my own installation. In my case, I needed to make my own custom length lines. I
did a full purge/vacuum check before charging, something you would not have the
equipment to do, I'm assuming. If you are going to pursue the do-it-yourself
route, eBay has plenty of various units, just search on 'mini split'. I live in
a more northern area, and could not find any local sources, they all seem to
sell in CA or FL.

--
Dennis


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