I got a very nice Range Tribute pre plumbed cylinder 120ltr. I would like to add a buffer cylinder to get a bit more out of it. Do you think storing hot water in the buffer will be ok even if I'm only squeezing 65° out of the unvented ?
Buffer cylinder for unvented
- Thread starter Mike2007
- Start date
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Is that the French Foreign Legionella ?
Ebay it and buy a bigger one 
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Will keep it for another job. For £400 new, it's a beautyEbay it and buy a bigger one
Put a blending valve on the DHW draw off and store water at approx 80C. Normally the boiler cuts in when the cylinder is one third exhausted. Add a flow switch to the cold feed to the cylinder, so when DHW is drawn off the boiler cuts in immediately, combining the boiler output and energy in the cylinder. Simple, by fitting a blending valve and a flow switch.
Just by adding the blending valve will bring excellent results. Store the water as hot as possible, 80-85C. Adding the flow switch would be even better.
Just by adding the blending valve will bring excellent results. Store the water as hot as possible, 80-85C. Adding the flow switch would be even better.
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Seriously? Ffs.
Probably not in the training they received
Or perhaps we're just not stupid.
How do you heat the cylinder to 85 degrees
What is the source of that heat
If boiler, what make and model
Yes, stupid enough not knowing how to think.
DP, our resident cordon bleu cook will tell you the Intergas can reach 90C. But all will reach 80C.
Not to mention bypassing the hysteresis of the cylinder stat to make the flow switch activate immediately. Heaven forbid that someone draws a few litres off for washing their hands and cause micro-firing of the boiler.
Not to mention too the crazy lack of efficiency running a boiler at 90 degrees, which is what you'd have to do to get the cylinder up to 80. Even at 90-degree flow, trying to get a cylinder to 85 would be pointlessly inefficient and the boiler will be cycling for hours trying to get over the last 5 - 8-degree hurdle.
This is, of course, assuming you can maintain G3 compliance; ignoring the obvious foolishness of running a cylinder so close to the safety devices cut in point as leave no margin for error.
Hard-On - you are such a moron it must be painful.
Not to mention too the crazy lack of efficiency running a boiler at 90 degrees, which is what you'd have to do to get the cylinder up to 80. Even at 90-degree flow, trying to get a cylinder to 85 would be pointlessly inefficient and the boiler will be cycling for hours trying to get over the last 5 - 8-degree hurdle.
This is, of course, assuming you can maintain G3 compliance; ignoring the obvious foolishness of running a cylinder so close to the safety devices cut in point as leave no margin for error.
Hard-On - you are such a moron it must be painful.
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