Rayburn or Aga danger ?

[Sc3141]

Hi, please can you advise me.

We have an old Rayburn oil fired stove. It heats water but it is not connected to any radiators. It is connected directly to the copper storage tank and is gravity fed.

Is there a danger that the water in the storage tank could overheat and in turn could overheat the water in the plastic cold water tank in the loft. That plastic tank could then collapse dumping boiling water onto the bedroom below !

Is this something I need to guard against? If yes, what needs to be done.

Many thanks for any help you can give.

Steve

 

[Exedon]

The answer is sort of depends!
What model rayburn? Is it a purpose built oil one or converted solid fuel?
What size is your hot water cylinder? Is it direct or indirect?
Clear pictures would be useful.

 

[Sc3141]

Hi, thanks for getting back to me. The Rayburn is oil fired, as originally made. It’s a Rayburn Royal OF7. The hot water tank is directly heated by the Rayburn, there is no copper coiled tube within it. The hot water cylinder holds approximately 175l or 36 UK gallons.
We don’t have any radiators or towel rails connected to this Rayburn.
I’ve attached 2 photos.
Thanks
Steve

 

[Sc3141]

Forgot to say the distance from the Rayburn to the hot water tank is only about 6 feet, 2m.

 

[Exedon]

I installed a few of them back in mist's of time.
We always installed them as a indirect system with a small rad or towel warmer.
As your system is now it probably depends on your hot water usage if your going to have problems or not.
I certainly wouldn't run cooker on high setting for several hrs if hot water was already up to temperature.
Has your cooker the original oblong burner or later round one?

 

[Sc3141]

Thanks for your thoughts. We tend to only ever run it at a low setting to add some background heat. We also use an immersion heater to top up the hot water quite often.
The burner is a round type with lots of perforated cylindrical walls, I'm sure you know the type.
Perhaps I could just keep an eye on the water temperature from the cold water tank and see if that ever starts to get hot ?

 

[Exedon]

If your having to top up with immersion heater your probably OK just monitor temperature.

We have occasionally had to increase size of heat leak when customers have started using less hot water and still ran cooker hot.
Make sure to keep burner serviced we do some 3 to 4 times a year depending on usage.

 

[Sc3141]

Many thanks for your help. I'll keep a close watch on it for a while to ensure the cold water tank never gets hot, with the way we use the Rayburn and immersion heater.
I really appreciate your advice.
Steve