Project AGA Rayburn Heating

[nuffin]

This may seem like a bizzare project but i'm looking to use an AGA Rayburn wood burning range cooker with only a hot water boiler to use for central heating and a megaflow to heat mains cold water. does anyone have sufficent knowledge of Rayburns to assist in this discussion, as the current thinking hasnt lead me to understand why a closed loop system cant work. As a megaflow will heat the mains water to give mains pressure hot water and rads off the same boiler cycling the same water.

some input on this project would be gratefully appreciated.

nuffin

 

[Agile]

does anyone have sufficent knowledge of Rayburns to assist in this discussion,

No, we are all ignorant "plumbers" and can contribute absolutely nuffin to that discussion!

If you want free help then I think you should start off on the other foot!

Tony

 

[tryitandsee]

Well said.

 

[Nige F]

Aga is one cooker Rayburn is another.............plebs have Rays. Posh have Aga ...............or has the revolution come and I missed it

 

[stevejac]

what is the cooker?

A rayburn! if so which series?
+++++++++++++++++++
or if not new what type?

 

[cozzmic]

No control of a solid fuel burning appliance so temperature of water can be too high turning your unvented cylinder into a potential bomb. (worse case senario) also the coils inside the UVHWC are not suitable for gravity circulation. If you say you have controls on it what happens when there is a power cut, fire will continue to burn and super heat the water(if the safetys fail) and KABOOM!!!

 

[nuffin]

This isnt free advice it's more a 'i've got a theory, lets see if it would work'

were looking at a 355sw as we have no gas or oil possibilities hence rayburn or stanley(functional but not as pretty) wood burner. Aga is a non eco friendly badge personally that doesnt even offer good central heating not unless you can swey my judgement... and anyway I aint posh.

The 355 Ray has a hot water and a central heating boiler fitted but I'm asking why the hell I need 2 boilers when I only need 1 hot supply.

The idea is to run the heating (9 rads around 50,000btu) with a megaflow which in turn heats a coil of mains cold water(mains feed hot water as result). only 1 boiler need heat the water and the heatign and megaflow take a feed from the boiler(not in series but parallel). The mega flow has a built in header tank and the only absence so far from a traditional setup is the overflow for the headertank.

Therefore the rads and megaflow work on a loop and reheat the water as it's pumped or gravity feed, and there for would eventually get up to heat after a few cycles.

does this sound completely mental? but why do i need 2 boilers??

in turn I can then opt for a cheaper range cooker and save myself between 500 - 1000 quid. For the summer period I have also installed a electric on demand combi(12KW shower basically) which is fine for hand washing etc. and this is turned of and bypassed when the range is in use.

enough insults now guys this might be an alternative way to look at the whole world of heating, as im sure this could apply to any aga rayburn or constant heat system.

nuff

 

[kevplumb]

why not ask rayburn

 

[nuffin]

Rayburn (AGA) are sadly in the same pot as my local plumbers... no vision or willingness to try and better the system by using modern methods or inventing more modern methods.
Rayburn are also almost impossible to get info from unless your a dealer.
no offence to the rest of the plumbing world but my local guys are simply pipe monkeys nd i've had to re plumb most of everything myself.

nuffin[/img]

 

[kevplumb]

no offence to the rest of the plumbing world but my local guys are simply pipe monkeys nd i've had to re plumb most of everything myself.

i take personal offence at that comment I AM a pipe monkey the black stuff
then i decided when i went on my own to educate mesen

you need an attitude transplant bonny lad or yer berrer sod off to another forum

 

[Agile]

Rayburn (AGA) are sadly in the same pot as my local plumbers... no vision or willingness to try and better the system by using modern methods or inventing more modern methods.
Rayburn are also almost impossible to get info from unless your a dealer.
no offence to the rest of the plumbing world but my local guys are simply pipe monkeys nd i've had to re plumb most of everything myself.
nuffin[/img]

Have you ever considered that Rayburn may understand their product better that you do?

I also hope and expect that your "local plumbers" follow the manufacturer's instructions when fitting their products. It would invalidate the warranty and insurance issues if they did not.

Obviously you think that all "plumbers" are uneducated and dont understand what they are working with.

Are you quite sure that your Rayburn will provide 18 kW output? Are you sure you understand the need to provide a heat dump?

Tony

 

[simond]

Not sure I understand the question or appreciate the attitude.

But are you not describing using the megaflo in reverse to indirectly heat mains pressure water in the coil?

In which case you have invented the heatstore - albiet about 50 yrs after it came onto the market. You could use the unregulated heat from a woodburner to go into one of these because they are open vent, as I say, it's commonplace.

or am I missing something?

 

[Balenza]

nuffin wrote

some input on this project would be gratefully appreciated

Then Agile wrote.

No, we are all ignorant "plumbers" and can contribute absolutely nuffin to that discussion!

If you want free help then I think you should start off on the other foot!

Seems he started off on a pretty good footing to me. !

 

[Balenza]

Kevplumb wrote

you need an attitude transplant bonny lad or yer berrer s** off to another forum
__________________

A little bit stumped on this one are we Bonny lad ??.

O what the heck lets chase him off to another forum and not have him clutter up this forum with something about Rayburns.

 

[Balenza]

nuffin wrote

The idea is to run the heating (9 rads around 50,000btu) with a megaflow which in turn heats a coil of mains cold water(mains feed hot water as result). only 1 boiler need heat the water and the heatign and megaflow take a feed from the boiler(not in series but parallel). The mega flow has a built in header tank and the only absence so far from a traditional setup is the overflow for the headertank.

You would need to turn the UV cylinder upside down to do this and have the coil at the top , then pipe the mains through this.
Though the coil may be to small .
For the header tank you would then need to tap a new hole on what was formerly the bottom of the UV cylinder to vent the cylinder.

Does this make sense nuffin ??.