<HTML>In a message dated 4/23/03 11:22:29 PM Central Dayligh= t Time, pianotuna@accesscomm.ca writes: <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT= : 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Hi Wim, That's great news! How far south are you? Where I live you would need a 2<BR= > zone buffer area to have control at 50% +/- 2.5%, which would be more than<B= R> just a HVAC situation. Regards, Don Rose,</BLOCKQUOTE> I'm in Alabama. (WAAAYYYY down south in Dixie.) When I told him the specs, t= he engineer didn't blink an eye. So I presume it is possible with the unit t= hat we have. Wim </HTML>