Use a twin coil unvented cylinder with boiler only

[Johntheo5]

Why not use the bottom stat, the cylinder will then start reheating once a small volume of HW is drawn off, present location means no reheat until - 1/2 tank drawn off?

 

[GrogSym]

Looks like a great setup! So in the top coil. Out the return. In the top coil of the other coil and out the bottom return?

Yip, easy!

 

[Question000]

I have a 300l Tempest Solar, linked the output from top coil to input of bottom coil which was the direct instruction of manufacturer. If you contact manufacturer they might tell you best option for your tank.

I have a tempest twin coil solar (250l). Our plumber only connected the bottom coil to the boiler and we nothing connected to the upper coil. You say that there was a direct instruction of the manufacturer to link the output from the top coil to the input of the bottom coil. I had a look at the installation guide and can't see anything suggesting linking the two coils.

Is the "direct instruction" in the manufacturers installation guide? If so, can you point me to it please.

 

[Question000]

I have a 300l Tempest Solar, linked the output from top coil to input of bottom coil which was the direct instruction of manufacturer. If you contact manufacturer they might tell you best option for your tank.

We had a 250 liter tempest twin coil solar, and the plumber just used the bottom coil. Can you tell me where this direct instruction of the manufacturers is. Was it in the installation guide?

 

[GrogSym]

We had a 250 liter tempest twin coil solar, and the plumber just used the bottom coil. Can you tell me where this direct instruction of the manufacturers is. Was it in the installation guide?

No, I contact the manufacturer and they emailed me a diagram