Solar gain through my basement windows. - Page 2

strider3700 · 12-23-10, 03:29 AM

it was amazingly sunny today and I got an interesting graph out of it. The most interesting part in my mind is the gain in my office in the afternoon. Upstairs of the house was amazingly sunny and I'm thinking the circulating on the furnace drove some of that down into my office. The office it's self gets no direct sun. recroom is blue, office is orange

I really can't wait for my new temp sensors to get here so I can get some upstairs and the outside temps working.

strider3700 · 01-20-11, 01:07 AM

ahh the joy of a sunny day - now with two outside temp sensors

The front yard in green faces directly south the back yard in yellow is full shade facing north.

the recroom in orange is right behind the front yard sensor with a roughly 2'x6' window in it. the office is on the north side right between the backyard sensor and the recroom.

You can see the obvious outside heat gain when the sun starts to hit the front of the house about 9:00. You can also see when it comes through the recroom window and hits the wall near the sensor. What I find most interesting is the heat gain in the office from roughly 9:30 on. Most of that heat must be coming from upstairs with the circulation fan of the forced air system moving it down in those spikes. Upstairs hallways climbed from 20 to 22.5 according to the thermostat in the hallway so a lot of heat comes through the big upstairs windows.

After the sun went down the later hump starting at roughly 6:00 is when I lit the fire.

12-23-10, 03:29 AM	#11
strider3700 Master EcoRenovator Join Date: Dec 2008 Location: Vancouver Island BC Posts: 745 Thanks: 23 Thanked 37 Times in 30 Posts	it was amazingly sunny today and I got an interesting graph out of it. The most interesting part in my mind is the gain in my office in the afternoon. Upstairs of the house was amazingly sunny and I'm thinking the circulating on the furnace drove some of that down into my office. The office it's self gets no direct sun. recroom is blue, office is orange I really can't wait for my new temp sensors to get here so I can get some upstairs and the outside temps working. Attached Thumbnails Last edited by strider3700; 12-23-10 at 03:32 AM..

01-20-11, 01:07 AM	#12
strider3700 Master EcoRenovator Join Date: Dec 2008 Location: Vancouver Island BC Posts: 745 Thanks: 23 Thanked 37 Times in 30 Posts	ahh the joy of a sunny day - now with two outside temp sensors The front yard in green faces directly south the back yard in yellow is full shade facing north. the recroom in orange is right behind the front yard sensor with a roughly 2'x6' window in it. the office is on the north side right between the backyard sensor and the recroom. You can see the obvious outside heat gain when the sun starts to hit the front of the house about 9:00. You can also see when it comes through the recroom window and hits the wall near the sensor. What I find most interesting is the heat gain in the office from roughly 9:30 on. Most of that heat must be coming from upstairs with the circulation fan of the forced air system moving it down in those spikes. Upstairs hallways climbed from 20 to 22.5 according to the thermostat in the hallway so a lot of heat comes through the big upstairs windows. After the sun went down the later hump starting at roughly 6:00 is when I lit the fire.