Does anyone know of a good online calculator for estimating heating and cooling costs based on square footage? I am looking at a 2nd-story 650-ft office space with 12 foot ceilings and a huge bank of south-facing windows. The space is beautiful, the rent is quite competitive, but I'm wondering if I'm going to get hosed on AC if we get another hot summer... Tess Gadwa Principal, DCS Creative Design. Content. Strategy. http://www.dcs-creative.com (o) 413.325.8251 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.hidden-tech.net/pipermail/hidden-discuss/attachments/20110426/a14503a1/attachment-0001.html