Joe Blake
29th January 2007, 22:23
Just for general interest,
Yesterday I purchased an infrared "non-contact" thermometer with laser spotter.
http://www.dse.com.au/cgi-bin/dse.storefront/45bec76106cc5ee42741c0a87f9c0739/Product/View/Q1371
Don't know about availability around the rest of the world, but freely available for Australia.
Don't know how I've lived 57 years without one. (Well, probably because they weren't invented until this century, but I digress.)
I can measure "hot spots" in the ceiling that indicate where the insulation is leaking heat through from the roof space. I don't even need to leave my computer station. The temperature of the ceiling varies from 29 to 33 degrees Centigrade. The internal air temperature at my seated head level is 28 C.
Walking around the outside of the house, from ground level I have determined that the underside temperature of the roofing tiles is 55 degrees C in some places, and under the solar hot water system collector panel it's only 33 degrees on the tiles.
My bedroom is about 1.5 degrees cooler (air temperature) but the ceiling temperature is about 28-30 degrees. I put this down the "heat sink" effect of having a double-size water bed in the small room. The temperature on the floor under the bed is 24 degrees.
Anyway, back to playing with me new toy.
Joe
Yesterday I purchased an infrared "non-contact" thermometer with laser spotter.
http://www.dse.com.au/cgi-bin/dse.storefront/45bec76106cc5ee42741c0a87f9c0739/Product/View/Q1371
Don't know about availability around the rest of the world, but freely available for Australia.
Don't know how I've lived 57 years without one. (Well, probably because they weren't invented until this century, but I digress.)
I can measure "hot spots" in the ceiling that indicate where the insulation is leaking heat through from the roof space. I don't even need to leave my computer station. The temperature of the ceiling varies from 29 to 33 degrees Centigrade. The internal air temperature at my seated head level is 28 C.
Walking around the outside of the house, from ground level I have determined that the underside temperature of the roofing tiles is 55 degrees C in some places, and under the solar hot water system collector panel it's only 33 degrees on the tiles.
My bedroom is about 1.5 degrees cooler (air temperature) but the ceiling temperature is about 28-30 degrees. I put this down the "heat sink" effect of having a double-size water bed in the small room. The temperature on the floor under the bed is 24 degrees.
Anyway, back to playing with me new toy.
Joe