Mini splits are not manufacturing heat out of the electrical input ( ie
resistance heating ) they are moving thermal mass from one side to the
other. So they are making the air outside even colder and the air
inside warmer, why the efficiency goes down as it gets colder. You have
to wrap your head around that before you accept that they are really
good. If you don't believe, what this video with an actual current
meter and temperature gauge. NOW understand, he's not heating the
garage from 0 degrees, the garage started warmer. But the meters are
not jacked. He did keep his garage ( I am guessing about 600 square
feet ) at 64 degrees overnight for 6KW hours.... Which with my current
30Kw battery pack is probably 4 days...
https://www.youtube.com/watch?v=IgCOmzCWGrU&ab_channel=DavidPoz
On 1/20/22 6:48 AM, Jan-GAMs wrote:
power is power, TANSTAFL (Heinlein). Maybe the OP is confusing his
formulae? 1 BTU/hr is not the same amount of power as 1 BTU/min.
(minutes vs hours)
On 1/20/22 06:30, Josh Luthman wrote:
Watts != btu. You're thinking in terms of resistance heating.
A mini-split is FAR more efficient in a particular range. The ones
I've gotten in the last 4 years are incredibly efficient at ~40-80
degrees. They're still decent at -8 through 40. Not too good when
colder than -8, but it'll still heat.
On Thu, Jan 20, 2022 at 9:25 AM Jan-GAMs <[email protected]> wrote:
somethings off, 6k btu should consume 1758.42642 watts. Your
mini-splits invent a new type of btu?
On 1/20/22 06:11, Robert wrote:
The $800 mini-splits I am looking at put out about 6K BTU's of
heat on 400 Watts. The home depot $300 heaters put out 5K BTU's
but require 1500 watts.. Not going to do well in the winter
overnight off grid... And no a/c in the summer...
On 1/20/22 5:53 AM, Jan-GAMs wrote:
$1895? For a one room ac/heater? Home Depot has something
similar for $300. Is it the decal? Hood ornament?
On 1/19/22 05:13, Zach Underwood wrote:
If you have not already gotten the mini splits take a look at
https://www.hotspotenergy.com/solar-air-conditioner/
It has direct PV inputs when sunny it would put no load on
your inverter
IT can be put in solar only mode where it will scale the
cool/heat output to match the power it is getting PV
It can run overnight if you wish by giving in 240volt AC
connection.
On Tue, Jan 18, 2022 at 7:08 PM Robert
<[email protected]> wrote:
I am working on my first off grid home, and hope to do
another in the
future somewhere more northerly.. This one is in the
sunbelt of N.
Nevada and currently I have 4K of solar feeding a 30KW LFP
battery bank
through currently a Victron charge controller and a couple
midnight
solar inverters to generate a flawed 220 as well as two
sides of 110. (
the 220 will not run the well controller even though
supposedly
configured for such. ) I am upgrading the inverters and
controller to
a
https://www.signaturesolar.com/products/8kw-48v-240vac-split-phase-120a-250vdc-off-grid-inverter-by-growatt
planning on doing a couple 9K mini-splits for heating/cooling.
I wonder if this group has some gotchas that I might learn
from in
advance before I buy myself into a corner... I'm all ears..
thanks!!
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My website <http://zachunderwood.me>
advance-networking.com <http://advance-networking.com>
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