Question wood boiler assembly with accumulation

[ulyssesourd]

turbozender ...
It is not good as a montage ...
You put the pump + 3-way valve upside down on the boiler return ... the pump must be after the 3-way valve on the return of the wood boiler !!
And the buffer tank, don't you mount it? or there you will find it difficult to manage your wood boiler ...

A+

[turbozender]

my 3V valve is on the wood departure

and the circulator just after to pump in the wood precisely


the recycling loop is missing along the wall on the right (so that the radiator return is cold it does not matter)

and at the bottom the buffer tanks




I don't quite understand your answer

[ulyssesourd]

Ah I thought it was the recycling pump ...

Well it is not yet good because this 3-way valve + pump must pump the water from the balloon. You don't do like my drawing.
I drew it according to the location of the oil boiler, storage tank and wood boiler.
If with you, it is not placed like with me, it does not work ...
So what you have to do is place the pump + 3 ways on the return of the wood boiler, and the outlet of the wood boiler must have a junction (at the top) between the tank and the oil boiler. On the pipe between this junction and the boiler return, you still have to put a pump + 3 ways to regulate the water temperature which comes from the tank and / or wood boiler, and which goes to the oil boiler return.

But there is another possibility: if you have an efficient regulation on your fuel oil boiler, you can connect the 2 outlets (wood / tank and fuel oil) directly to the 4-way valve: regulation: if water tank / wood + hot than the setpoint minimum = oil burner at rest.

And that´s it

[ulyssesourd]

The best thing is to make us a complete diagram according to your location: oil boiler with right or right? and the buffer balloon, etc ...
Because in the photos it's not understandable ...
A word of advice: no flexible pipes ... they do not tolerate high temperature and wear out fairly quickly ...
A+
And good luck ... (and patience + bcp of reflection too ...)

[turbozender]

Thanks for your info

I will make a complete diagram a little later there I have people arriving

i'm ok that must pump in the ball

if it doesn't work like that i would modify
because my balloons I would have in my opinion around October so it will take heating pdt this time (a friend will make them for me in stainless steel)

fo that I indicate to him the nb of stitching as well as the positions

for flexible it really does not hold?
I took this to make my life easier because nothing comes across

[ulyssesourd]

For hoses, it is at the soft-hard welds that does not hold. But you can mount them in a circuit whose water does not exceed 70 ° C.

[turbozender]

so here is my montage

in red it will be the modification when I have my buffer balloons





ps if i had nice shema software i would have made it clean
but with paint or something I don't like (I didn't see that you could see my daughter's drawing through )

there is in addition to the diagram a differential valve
that I don't really know how to adjust (it is noted: all the tap open reglet at the limit of the opening) but I see it how it is open

[ulyssesourd]

hi turbo
Yes it's good except that you have to heat the upper part of the ball first before you can heat the radiators ...
And if you heat the DHW with the oil boiler, you must bring the hot water from the 3-way valve after the wood boiler and must go into the oil boiler return with a junction on the radiator return (valve to ask) and the return of this water on the same pipe but higher than the 1st junction. See my plan diagram.
A+

[Philippe Schutt]

where is the water pushed by the circulator supposed to go in the bottom right?

[turbozender]

hi turbo
Yes it's good except that you have to heat the upper part of the ball first before you can heat the radiators ...
And if you heat the DHW with the oil boiler, you must bring the hot water from the 3-way valve after the wood boiler and must go into the oil boiler return with a junction on the radiator return (valve to ask) and the return of this water on the same pipe but higher than the 1st junction. See my plan diagram.
A+

how will you do it for the moment it pumps in the boiler and if i leave it as it is with the balloons it will pump cold water into the boiler when it is stopped

for chess no it's electric and in the house (no desire to make a slice + break my bathroom tiles for that) the boiler room is 5 m from the house
(it was the connection that I had planned at the start but with my new one I do not heat the fuel unnecessarily and I avoid thermal shock
my oil boiler at rest can be completely cold



for Philippe Schutt
the circulator at the bottom right is the one that will circulate the water to heat the buffer tanks



I will give you some pictures
I have more than the fuel oil supply to the burner to achieve
and the electrical connection of the wood boiler (control of the accelerator in fct of the temperature and my 500VA inverter with car battery like that even in case of power cut I would always have heating and circulation in the wood to avoid overheating