#atticfan

Curve is bending, sun on a downward arc. Helps also that the intake vents are on the cool side of the house now (exhaust fan is on the west side). I'm unsure what the second bump in the temperature indicates... #atticfan #sensors

Just for funsies the solar fan panel there on my roof, seen from some height away. The pipe below is a sewage vent stack pipe. I am insure what the great big metal vent is there or where it is connected. Roof has no opening. But 2 stories down is HVAC. (Why an outside opening... I do not know. Air supply for the furnace, perhaps? There's a different fume vent through the garage for combustion products from the furnace) #atticfan

Attic temperature dropping fast! Not sure if the fan is still running, need to go up there and listen... still a bit of light, sunset. #atticfan #sensors

No fan for sure, but the very cool weather outside is equalizing up there quickly. I guess no way to tell what impact it had without turning the fan off and comparing on a similar sunlight/weather day... it definitely is doing something good, but just no way to quantify the number of degrees it is helping (it clearly is flattening the curve and likely the peak) #atticfan #sensors

Down to 25.5C/78F at 8:30pm due to temp differential. I could see how a fan on in evening hours could still help. (but, then would have an electrical draw, vs. free electrons). #atticfan

Popped into the attic. The sensor is hanging by a string off the rafters right above the attic door, so I can change batteries easier. Also away from aurfaces which retain temperatures. Used Lithium batteries $ as they work in extremes better and should last longer. Hoping to not have to change these often. Even with the fan running... 87F! Outside air temp is 74F. #atticfaninstall #atticfan #sensors

Still haven't had time to fix my plotting code, but this is fun.... Plot started around 10pm last night when I quickly threw an SDR card on there and stated logging, and wrote some code to plot it. #atticfan #sensors #rtl433

Will be interesting to see what this graph does when the fan kicks on. #sensors #atticfan

HA! Attic fan has turned on! You can see it in the graph... #rtl433 #sensors #atticfan

It's the little attic fan that could, lol. Attic is 27.2C, ambient outdoors is 23.4C The fan is not bringing it down to ambient, but has some effect.... but it's definitely fighting all that sunlight. #atticfan #sensors #rtl433 #wx

"Captain, I'm giving 'er all she got!" #atticfan #sensors #rtl433 #rtlsdr