That's what they say anyhow -

http://www.quietside.com/QS08/Sub_Pr...sp?VITEM_NUM=1

Look at the PDF first page under 'controls'

It says it can heat at an ambient of 5 degrees farenheit.

Anybody with a little experience or an inside contact know how well they HEAT at the lower ambients? Installations at higher lattitudes, NJ, NY, PA for example that went well?

Thanks guys!!