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[LittleJohn]

Have been running my 2400 for 3rd year now, heating a 4000 sf "Garage"/living area; all inslab radiant
 
Over the coarse of the summer built house, about 3500 sf; mix of inslab and under floor.  Went to fire up house a couple of weeks back and everything worked great, accept very little to no flow in slab.  Wasn't too concerned at this point cause it wasnt cold. Well 3 weeks later its getting cold and I had to get serious about finding problem, cause it dodnt fix itself; so here is how I proceeded:
1) Checked each loop top make sure I had not crossed between manifolds  (Check, hooked up right)
2) Checked supply/return lines to ensure they did not get crossed  (Check, hooked up right)
3) Check plumbing in Mech room (Everything good except 3-way mixing valve installed backwards - resolved)
4) Though pump was under sized (dropped in a Grundfos 26-99, WAY OVERKILL)
    STILL NOTHING
5) Finally, starting tearing everything apart, to replumb again
   WALA - found a check valve that had fallen out of original pump, got flipped around and fell down supply pipe - so here I was trying trying to pump again a check valve.
   Removed stupid *%&^ check valve and it works, heat.

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[drpinard]

Great looking house..  Good Luck with boiler. Best investment I did.



 

[Roger2561]

LittleJohn - I'm glad your fix was a simple one, thankfully not in the pour slabs.

You have an impressive looking home.  I certainly hope you install some windows and doors for the winter, something tells it could be a bit drafty without them. 

I have the E-Classic 1400.  This is my 3rd season heating with it and I love the heat.  Roger

[LittleJohn]

Was thinking about putting windows in to help with draft! hehe

Pictures are a few months old, house actually has windows, siding and sheetrock inside.  By the way the perfa-taper absolutely loved the fact the house has radiant, cause everything is nice and cozy.