Maker Pro
Maker Pro

cold!

J

John Larkin

Jan 1, 1970
0
My Omega thermocouple thingie, hanging out my office window, reports
58F at 1:45 PM. A cheap Extech IR thermometer shows 61F on the
adjacent rooftop, not a bad correlation for this sort of thing. San
Francisco, about 2 miles from the beach.

Back to work.

John
 
J

Jim Thompson

Jan 1, 1970
0
My Omega thermocouple thingie, hanging out my office window, reports
58F at 1:45 PM. A cheap Extech IR thermometer shows 61F on the
adjacent rooftop, not a bad correlation for this sort of thing. San
Francisco, about 2 miles from the beach.

Back to work.

John

Yep, it's cool today... only 86°F right now ;-)

...Jim Thompson
 
J

Jan Panteltje

Jan 1, 1970
0
My Omega thermocouple thingie, hanging out my office window, reports
58F at 1:45 PM. A cheap Extech IR thermometer shows 61F on the
adjacent rooftop, not a bad correlation for this sort of thing. San
Francisco, about 2 miles from the beach.

Back to work.

John
Thats is 14.444444444 Celcius according to
http://www.nomoreodor.com/fahrenheit_to_celsius_conversion.htm

San Francisco is same height as Amsterdam?
My PC says:
requested day temperature 19.00 requested night temperature 2.00
inside temperature 19.07 outside temperature 11.01
minimum inside temp 6.98 maximum inside temp 25.12
minimum outside temp -3.10 maximum outside temp 37.22
At 23:45 (evening).
The minimum was over this last winter, not much of a winter really.
It also shows the heating costs, if the power is flowing, and has a nice GUI
you can click.
The outside sensor is about 1 meter away from the ground and 20 cm from a non
heated wall.
The maximum comes from direct sunlight on the sensor.

I had a light sensor too, but does not seem to be plugged in now :)
JP
 
P

Paul Burridge

Jan 1, 1970
0
My Omega thermocouple thingie, hanging out my office window, reports
58F at 1:45 PM. A cheap Extech IR thermometer shows 61F on the
adjacent rooftop, not a bad correlation for this sort of thing. San
Francisco, about 2 miles from the beach.

He! We hit 64' here today at the 'hottest' part of the afternoon.
Expected to reach the low seventies by the weekend, though! :-D
 
J

Julie

Jan 1, 1970
0
John said:
My Omega thermocouple thingie, hanging out my office window, reports
58F at 1:45 PM. A cheap Extech IR thermometer shows 61F on the
adjacent rooftop, not a bad correlation for this sort of thing. San
Francisco, about 2 miles from the beach.

Back to work.

John

96.4 F in Vegas at 4:41 PM PDT.
 
P

PaulCsouls

Jan 1, 1970
0
Hey it's been summer here since February just across the Bay in
Dublin, CA. And it was 80 degrees in Sam Clam's Disco at the end of
March for the ESC, so stop complaining. Now I'm heading to the east
coast to show off my tan.

Paul
 
J

John Larkin

Jan 1, 1970
0
Hey it's been summer here since February just across the Bay in
Dublin, CA. And it was 80 degrees in Sam Clam's Disco at the end of
March for the ESC, so stop complaining. Now I'm heading to the east
coast to show off my tan.

Paul

Yeah: on a good summer day, Sf is 60, Berkeley is 80, Walnut Creek is
100: roughly a gradient of one degree per mile.

John
 
P

Paul Burridge

Jan 1, 1970
0
Yeah: on a good summer day, Sf is 60, Berkeley is 80, Walnut Creek is
100: roughly a gradient of one degree per mile.

What would LA typically be, then? :->
 
G

Guy Macon

Jan 1, 1970
0
Paul Burridge said:
What would LA typically be, then? :->

In Los Angeles it gets hotter as you move towards the San Fernando Valley
(which is towards San Frnasisco. The maximum must, therefore, be
halfway betwee the two in Santa Barbara. No wait, that can't be right.
Bakersfield?
 
J

Jan Panteltje

Jan 1, 1970
0
No, we're above sea level.
no, I mean height as in higher is more north.

I hope you sleep with your woolies on!
This is frost protection.
As you can see from the minima it does not get below 6 when it is outside -4 or so.
This because of all the electronics, the computers heat up the place, some other stuff.
Good isolation.
I usually do not activate the nighttime control, because often I work half a night or
so (until 4 in the morning..) only when I am away in winter, to prevent things from
freezing.
That once happened and is quite nasy one the temp goes up again and the water
pipes get lose...

This 10 C delta T between inside and outside shows you the thermal conductance of the
house.
Convenient to know that.
Since there is no airco, now you can see it was 40 inside when it was 30 outside last
summer...
However when there is a lot of wind, the delta t lowers a lot...
And wind is always here...
JP
 
J

John Larkin

Jan 1, 1970
0
no, I mean height as in higher is more north.

I know. I was just being annoying.

We have a weird upwelling of very cold water just offshore, and it
makes the city cool to cold almost all year, and only the hardiest of
lunatics swim in the ocean here.

Is Amsterdam above sea level? I grew up in New Orleans, at about -3
feet. My kitchen floor here is 365 feet above sea level, so we don't
worry much about tidal waves.

John
 
J

Jan Panteltje

Jan 1, 1970
0
I know. I was just being annoying.

We have a weird upwelling of very cold water just offshore, and it
makes the city cool to cold almost all year, and only the hardiest of
lunatics swim in the ocean here.

Is Amsterdam above sea level? I grew up in New Orleans, at about -3
feet. My kitchen floor here is 365 feet above sea level, so we don't
worry much about tidal waves.

John
Amsterdam is several meters below sea level
http://www.amsterdam.nl/asp/get.asp?ItmIdt=00003055&SitIdt=00000005&VarIdt=00000002
shows you the water column. NAP is an international standard.
I worked on those systems, there are huge pumps pumping the water outside the
dykes.
If ever electricity failed (like it was not there), the city would flood.
Considering the size of the area, after some rain incredible amounts of water
need to be pumped out.
This water level is sensed in hundreds of places, and needs to be precise within
centimeters for agriculture (a lot of farm land is within the dikes).
JP
 
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