First of thanks for all your help over the past few weeks. I learned a lot...

I have my oil usage of 775 gallons for winter 09-10 and 1107 for all of 09. 720 gallons for 10-11 winter with 987 for 2010 total. 430 so far 2011 total. Still don't have heat load calculations in hand, might be in mailbox tonight. 1700 sq foot heated space.

1. Viessmann VR1 with Superstor and controls VERY well respected contractor at $9893, Very detailed quote.

2. Same system without controls from a decent vendor at $8490

3. Buderus G115WS-3 no controls with TraingleTube 56 gallon from decent vendor at $9700

None of the vendors recommended a storage or buffer tank. I like the TT for added mass so asking the first two contractors to price it. The Viessmann seems like the best "sized" unit at 80k BTU. I have the Weil Mclain quote but at 98k it's way over sized.

leaning towards option 1 because of reputation and TriangleTube depending on additional cost.

Open to opinions and discussions.