Outdoor Wood Furnace Info

All-Purpose OWF Discussions => Plumbing => Topic started by: George Scofield on January 03, 2015, 09:39:29 AM

Title: HX heat loss
Post by: George Scofield on January 03, 2015, 09:39:29 AM

Can anybody tell me what to expect in heat loss out of a 50 plate heat exchanger if the water from owb is 180 and the water coming through to be reheated is around 160? Any info is appreciated.

Title: Re: HX heat loss
Post by: LittleJohn on January 05, 2015, 07:50:19 AM

This is NOT OFFICIAL or anything but I always assume at least a 5 degree lose when going thru a HX.  I know the whole conservation of energy thing (from school & science classes), but in the real world there is this thing that is called resistant, it affects everything

...but then again 95% of the time I am running a mixing valve on the secondary side of the HX before I get to the manifold, so I don't really need 180F water anyway.  Cause the underfloor plates do not need more than about 140F MAX, and the in slab closer to 120F MAX

Title: Re: HX heat loss
Post by: George Scofield on January 05, 2015, 09:02:55 AM

Thanks for the input.