outside wood stove boiler combo

Steve Ebels_3

On an open system like that, especially in a two story, if I read correctly, a heat exchanger of some kind is almost always needed. An Econoburn or other sealed system type wood boiler is a major advantage when dealing heat emitters above the heat source.

lakota

outside wood stove boiler combo

No heat on top floor baseboard . There is a bleeder valve up there but only a little water comes out. The wood stove is a non pressurized system tied into an existing hot water system. Tried to fill more water in system only to come out top of wood stove. Question: Is there a way to get heat out of baseboard when the baseboard is higher than the flood level of the wood stove. The wood stove ciculates hot water through the boiler and serves a modine in a garage which are on there own circ. Boiler temp is between 170 and 180. First floor of house gets hot but not a loft on second level Each zone has its own circ. Any way to get heat on second floor loft. Thanks

Chris S

I had a customer with a similar problem. Your circulator must make the pressure required to reach the second floor in a non pressurized system.If the circ is on the return, relocating it to the supply will help, you may need a circulator that creates more head.
I think a bettter way to run these systems is with a heat exchanger & keep the old boiler pressurized IMHO

Chris

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hot_rod

Often the circ is mounted on the return

at the bottom of the OWF to help with the NPSH. That extra couple of feet of head is often enough to keep them from cavitating, as most have high head circs as Chris mentioned, to over come the lift in an open system like that.

I'd guess the circ failure rate is fairly high on those systems.

Does it have check valves anywhere? Those open systems with emitters above the level of the water have always made me scratch my head. How and why.

Isolation via a HX makes more sense to me also.

hr

mtfallsmikey

Or...

Lakota, do you have a HX on the system?...Maybe it is leaking thru.

Randy-Lee Braman

HX

We've put in alot of thies systems this year.Always pipe them with a HX and a buffer tank.Work Fine.
Randy

Wheeler Plumbing & Heating (Bryant Wheeler)

wood boiler

i have installed at least thirthy outside wood boilers over the last two years.we never use HX's.Never have had a promblem we use a 009 circulator on the supply side of boiler with a swing check on return at boiler.i have and owb at my house very happy with it and no HX

Leo

Going along with the HX

Going along with the HX issue, two mfg reps have told me that if no HX is used it voids the home boiler waranty. The issue being the outdoor boiler is open to the air bringing in more oxygen potentially speeding up corrosion.

Leo