Indirect cylinder used solely as an immersion heater

[stevetheplumber]

more chance of the cylinder bursting than the coil and what\ about all the other piupework that could burst

 

[TerryWaite]

Have you been plumbing long mate?

I am an industrial commercial pipefitter by trade, I am ok at domestic plumbing and have my domestic gas safe, but housebashing is not my background, hence why I come on here, theres some great people on here whom most of them give sound advice.

 

[TerryWaite]

more chance of the cylinder bursting than the coil and what\ about all the other piupework that could burst

I know what youre saying but would you not atleast put two proper caps on it atleast?

 

[Mike Jackson]

No need at all. The coil is a lot stronger than the rest of the cylinder as they are designed to work at 3 bar on sealed systems.

 

[TerryWaite]

thank you

 

[Dannypipe]

A 14" immersion isn't going to give him much hot water.

Not top fixed anyway. On some cylinders you get a 14" in the side (top and bottom) and the result is a tank full of water. The basic rule is animmersion will only heat water to the same length. It won't heat water below. So the majority of your clients cylinder is going to be unheated.

 

[TerryWaite]

Thank you Danny, as stated I did originally have a 27", I dont know why the tapping isnt angled in the first place, seems stupid to me. I will try to bend the tapping and change the immersion.

I see what you mean a 14" top entry immersion is only gonna heat top third of tank. Do you mean you have 1 14" in the top and another one in the bottom of some cylinders?

 

[Dannypipe]

Kind of. They are side entry and one is in the bottom (a few inches up) and another one in the top third. (For a booster supply).

You mainly see this on unvented cylinders and thermal stores. More often they'll use an 11" immersion, but I know a Gledhill that uses a 14".

I've also come across it on conventional vented cylinders. You can also get side entry 14" immersion heaters that are over 3KW (but it's rare) I've got one client who's got a bloody great big house with two cylinders. One of them has a 6KW 14" side entry immersion.

I know this is all besides the point but once I start rambling I tend to get carried away. A few years back, one of these cylinders in the clients house sprung a leak and I had to change it. Was a good day for scrap....but back then wasn't as valuable as it is today.