Circulating heated water without a pump?

[Hyperion]

Calling all MS Paint/physics experts.

In my living room is a wood burning stove. When the stove is running at full tilt it gets extremely hot and the heat is somewhat wasted. I would like to hook up the back boiler option kit this stove has to a single radiator on the landing upstairs.

Now...aparently you can circulate heated water without a pump?
It'd be really cool to just light the fire and the waisted heat from the boiler automatically heats a single radiator upstairs without the need for a pump! I assume you'd need some sort of header/expansion tank?
Is this possible, if so how? and can you draw me a picture of how it would be plumbed in please.
Thanks.

[tegwin]

There is LOADS of information on this.... GOOGLE is your friend!

If you try and take heat from the burner...you will need to put in more fuel... (basic law of conservation of energy)...

You can rely on convection to lift the heat from the burner... but the usual thing to do is to pass that water through a coil in your immersion tank, and then let it sink back down into the burner again

[rhinochopig]

Hyperion said:

Calling all MS Paint/physics experts.

In my living room is a wood burning stove. When the stove is running at full tilt it gets extremely hot and the heat is somewhat wasted. I would like to hook up the back boiler option kit this stove has to a single radiator on the landing upstairs.

Now...aparently you can circulate heated water without a pump?
It'd be really cool to just light the fire and the waisted heat from the boiler automatically heats a single radiator upstairs without the need for a pump! I assume you'd need some sort of header/expansion tank?
Is this possible, if so how? and can you draw me a picture of how it would be plumbed in please.
Thanks.

http://en.wikipedia.org/wiki/Natural_circulation

[Hyperion]

Thanks for the tips...I'm just wondering if natural circulation will be too slow?

[rhinochopig]

Hyperion said:

Thanks for the tips...I'm just wondering if natural circulation will be too slow?

Well it works on a nuclear reactor - your heating system should be fine

[phumy]

rhinochopig said:

Hyperion said:

Thanks for the tips...I'm just wondering if natural circulation will be too slow?

Well it works on a nuclear reactor - your heating system should be fine

Which nuclear reactor, not normally in any British ones?

Normally natural circulation is used in emergency situations only.

[rhinochopig]

phumy said:

rhinochopig said:

Hyperion said:

Thanks for the tips...I'm just wondering if natural circulation will be too slow?

Well it works on a nuclear reactor - your heating system should be fine

Which nuclear reactor, not normally in any British ones?

Normally natural circulation is used in emergency situations only.

ETA http://en.wikipedia.org/wiki/S8G_reactor

Edited by rhinochopig on Tuesday 25th November 11:55

[phumy]

rhinochopig said:

phumy said:

rhinochopig said:

Hyperion said:

Thanks for the tips...I'm just wondering if natural circulation will be too slow?

Well it works on a nuclear reactor - your heating system should be fine

Which nuclear reactor, not normally in any British ones?

Normally natural circulation is used in emergency situations only.

ETA http://en.wikipedia.org/wiki/S8G_reactor

Edited by rhinochopig on Tuesday 25th November 11:55

With natural circ on that reactor will probably produce enough power to keep their washing machine running and thats about it

"This nuclear reactor utilizes natural circulation which is capable of operating at a significant fraction of full power without reactor coolant pumps."

[rhinochopig]

phumy said:

rhinochopig said:

phumy said:

rhinochopig said:

Hyperion said:

Thanks for the tips...I'm just wondering if natural circulation will be too slow?

Well it works on a nuclear reactor - your heating system should be fine

Which nuclear reactor, not normally in any British ones?

Normally natural circulation is used in emergency situations only.

ETA http://en.wikipedia.org/wiki/S8G_reactor

Edited by rhinochopig on Tuesday 25th November 11:55

With natural circ on that reactor will probably produce enough power to keep their washing machine running and thats about it

"This nuclear reactor utilizes natural circulation which is capable of operating at a significant fraction of full power without reactor coolant pumps."

Yeah but the OP is only after running a single rad.

Most of the Gen3 designs work with Nat Circ for DBAs, which is a hell of a lot of decay heat to remove if the DBA occurs during a full power state.

Edited by rhinochopig on Tuesday 25th November 12:27

[GreenV8S]

If you have a back boiler on the fire you can use convection to circulate the water through a heating tank/radiator. You'll probably find it's more affective at heating the house simply to take more heat from the outside of the stove pipe, if you have access to it.