A water heater/boiler for a small building would be a great start for a real world test.
You should both be aware that as of this Autumn a commercial 1MW Combined Heat and Power (CHP) Pilot Plant, that has already been certified for industrial (staff to look after it) use, will be running in Sweden as a Showcase:
http://hydrofusion.com/news/wanted-pilot-customer-for-ecat-1-mw-plant
You should further be aware that an improved version of technology has been tested by an independent group of international Scientists Universities and organisations. Their pre publication report is available from various sources such as Los Alamos Labs here:
http://xxx.lanl.gov/ftp/arxiv/papers/1305/1305.3913.pdf
And here at Cornell University Library
http://arxiv.org/abs/1305.3913
The report is still going through peer review with corrections and queries from peer reviewers before formal publication.
This picture gives you an idea of the current power output that the scientists from Sweden and Italy verified with the E-Cat HT:
http://b-i.forbesimg.com/markgibbs/files/2013/05/130520_ragone_04.png
There are plans for a more detailed 6 Month test of the of the latest version which is even more powerful.
Meanwhile the European Parliament is discussing LENR/Cold Fusion/The Fleischman-Pons effect:
http://www.enea.it/it/Ufficio-Bruxelles/documenti/eventi/new-advancements-on-the-fleischmann-pons-effect/agenda-pdf
And Dr. James Truchard: Chairman of National Instruments, the worlds biggest Scientific Instrument maker will be Key Note speaker at this years Cold Fusion Conference at Missouri University:
http://iccf18.research.missouri.edu/index.php
Lots of stuff happening now, get ready for a major US anouncement! :)