The data for this study was collected during a relatively warm and sunny period for this region.  With more time the same method may have been repeated on a colder day with a thick cloud cover.  At peak solar gain hours both radiant and dry bulb temperatures rose a maximum of approximately 8 degrees Fahrenheit.  However, at 2:30 a.m. with no solar gain and an outdoor temperature of less than 50 degreesF, the temperature in the main indoor living space remained just above 70 degreesF.  Firing the masonry wood burning stove for an hour and a half did produce a consistent level of heat through out the central living space for a twenty four hour period.
 

ACKNOWLEDGMENTS
Thanks to our professors: Walter Grondzik for valuable guidance and for the toilet floater idea, and to Alison Kwok for her insightful feedback throughout the project.

This project was made possible by Tim Leonard and his family who have made their home a valuable learning tool in the field of sustainable building.  Their generosity and enthusiasm is much appreciated.  Thank you!