Re: Product idea

On 2025-02-17 22:55, Don Y wrote:

On 2/17/2025 1:23 PM, Carlos E.R. wrote:

My computer room stays one or two degrees above other rooms. A desktop computer, some peripherals, printer, switch, wifi AP, a minicomputer with display...

 Houses, here, use forced air HVAC (for the most part).
But, virtually all are built on slabs and are devoid of
(distributed) return air ductwork ("Supply" is high;
"Return" is omitted).
 So, open room doors are the primary means of recovering
air from those rooms.  CLOSE a door and you seriously
impede air flow IN and OUT of said room.

Is that Canada? Because I have seen that in Ottawa. Originally for heating, later AC added.

 OTOH, most floorplans are "open"; more than half of the
floorspace CAN'T be "isolated" in such a way.
 The point being that one can easily (deliberately or
accidentally) "capture" waste heat in a room.  This
is a win for places like bathrooms where you typically
want to step OUT of a shower into a WARM(er) room
and not the cold of an air-conditioned space!
 Even without anything "on", there is a large quiescent
load:
- three switches (25W ea)
- printer (sleeping)
- print server (laserjet has no NIC)
- 12 "idling" UPSs (with loads "off")
- all the servers/workstations "off" (needing power for LoM)
- all the devices (monitors, NASs) with "soft" power switches
 I'd imagine there's at least 100W there, 24/7/365.
 But, one doesn't see any real downside as there isn't
a line-item on the electric bill that makes clear the
cost of these inefficiencies.  And, the HVAC does a
reasonably good job of insulating us from any associated
PHYSICAL discomfort!

Heh, my electricity company does write in the invoice what they think I'm spending electricity on. Like so many Kwh for the fridge, the clothes washer, etc. It is ridiculous.
I had a gadget to actually measure the power consumed at a socket, but it broke. Like if its internal software got corrupted. I should get another one day, and find out what my computer socket takes.
--
Cheers, Carlos.