Heating Help

Riello post purge

 I've got a Viessmann Vitola w/ Riello burner.  It has a 30 second pre-purge, but no post-purge.  Is it common for pressure-fired boilers not to have a post-purge cycle?  I'm sure the engineers at Viessmann know more about their equipment than I do but I'd think it would make sense to run the blower on the burner at least long enough to clear the flue chamber before the draft regulator.  Would there be any harm in this?

Riello has a post purge control

for their BF series burners , usually used with direct vent boilers . I'm sure you could purchase the control separately . Last one I installed was years ago and the control fits inside the cover . Not the best place in my opinion . Too tight to begin with in there . I'm suprised they haven't come out with a primary control with post purge function , like Beckett and the new Honeywell .

I agree . Post purge on a minimum time setting is a good idea . I set our Beckett burners to 15 seconds .

reillo burner

O.k  first off is the Viessmann direct vent (sidewall vent no chimney) or standard chimney vent boiler? Next is the reillo a bf3 or just a f40? Now you can by a post-purge control that basically interupts the pump coil/ extends burner lock out time ,on shut down....but be sure to read the book that comes with it and jsut go step by step...unplugging wires and moving them to differnetn terminals. These new little controls are a--way better then to old skool omran relays that were standard in the late 80s early 90s. Those shitty things all jammed inside a black 4x4 box.......this is bringing back bad memories lol.....If its a chimney vent with a f40 burner then no you dont need post purge...and sometimes it can cause more problems as it will push the fumes right thought the draft reg..   let me know if you need the part # for the post purge

It's a straight draft

Riello 40-f3 with a chimney draft.  No direct vent.   I've installed a stainless insulated liner,  and the draft is much improved.  I'm just at the end of a long long tunnel and looking for excuses to keep disappearing for a few hours into the bowels of my house. 
 My wife asked me if I had plans to install a beer fridge in the boiler room.