I'm looking for some input here, any advice is welcome. Here's what I have, and what I'm thinking of:
Home is 3200sq/ft, contemporary, with very high ceilings (34' peaks, 29' peaks, 19' peaks, indoors). The house has 3 zone heating, and the design of the house is such that there is really no natural circulation between the zones themselves. The main zone is about 1700sq/ft, heating the living room, dining, kitchen, separate kitchen dining area, small bathroom, and an atrium with a 34' ceiling. Build is 15 years old, well insulated, all Andersen casements, wrapped, with a clear cedar TIG exterior, however it is in a very, very high wind area. We are 100' up on a bluff, with the house located 200' back from the water. 30 knot northerly winds sustained for 3-4 days are not uncommon, and suck the heat out of anything. Current heat source is an oil boiler that circulates water into the three zones. Each zone has an air handler with a heat exchanger in it, (and an a/c coil), where the water heat is converted to hot air, humidified for comfort, and dispersed in the zone. For the past 4 years I have also had a Jotul wood insert in my fireplace, and burn about 3 cord per year. If left to its own devices, with my southern California born and raised wife (who likes everything warm warm warm) and without the Jotul running, I burn 500 gallons of oil per month. With the Jotul it is 200-250/month.
Last year I did some research, and thought I settled on a Keystoker 90 in the basement, with a closed air loop, intake on one side of the main zone, output on the other side of the zone. I still think this will work well, and I have an (almost) local Keystoker dealer here. BUT, after reading all your recent posts on Boilers, I thought, what about something along the lines of a Keystoker KAA2 (or larger?) boiler plumbed into the boiler? Some restrictions HAVE to be adhered to though... It must be direct/power vented, and it must be in the basement. On another note, the existing boiler is most likely being replaced with a Buderus boiler and a Riello burner this summer. I don't like the idea of 4.00 oil.
Any opinions or comments would be welcomed.
Last edited by Mike Wilson
on Sun Mar 30, 2008 9:23 am, edited 2 times in total.