Fortic f1 direct hot water tank

grumbler

ComicGeek said:

Those cylinders have a cold water header tank built into the top that feeds the cylinder below - was supposed to be a space saving option for flats without loft spaces for tanks. 

I wonder if they have any advantages compared to a sealed cylinder.  I don't see any, but disadvantages are obvious.  And difference in production and installation costs shouldn't be that big.

playlister82

ThisIsWeird said:

Clearly it was installed by a genius!

When you run off a decent amount of hot water, can you hear it refilling ok? What does it sound like - a trickle or a good flow?

The LL is clearly wrong in any case; just look at the size of the hot cylinder part - you should be able to have that much of hot water, constantly replenished by the small CWS on top, which in turn should be filled at a rate to easily keep up with this (almost certainly it'll be supplied direct from the mains - unless there's another CWS on the roof/loft space?). On that note, what is the flow from your cold kitchen tap like?

When it refills it's definitely more of a trickle and takes around an hour to fully fill. It is coming from the mains. Cold kitchen tap flow is fine and continuous.

ThisIsWeird

playlister82 said:

ThisIsWeird said:

Clearly it was installed by a genius!

When you run off a decent amount of hot water, can you hear it refilling ok? What does it sound like - a trickle or a good flow?

The LL is clearly wrong in any case; just look at the size of the hot cylinder part - you should be able to have that much of hot water, constantly replenished by the small CWS on top, which in turn should be filled at a rate to easily keep up with this (almost certainly it'll be supplied direct from the mains - unless there's another CWS on the roof/loft space?). On that note, what is the flow from your cold kitchen tap like?

When it refills it's definitely more of a trickle and takes around an hour to fully fill. It is coming from the mains. Cold kitchen tap flow is fine and continuous.

Ok, that sounds like an easy solution could be more likely.

There's a red gate valve shown in your first photos - can you confirm that this feeds in to near the top of the upper tank? Does the valve rotate smoothly? Is it fully open - anti-clockwise?

plumb1_2

ThisIsWeird said:

playlister82 said:

ThisIsWeird said:

Clearly it was installed by a genius!

When you run off a decent amount of hot water, can you hear it refilling ok? What does it sound like - a trickle or a good flow?

The LL is clearly wrong in any case; just look at the size of the hot cylinder part - you should be able to have that much of hot water, constantly replenished by the small CWS on top, which in turn should be filled at a rate to easily keep up with this (almost certainly it'll be supplied direct from the mains - unless there's another CWS on the roof/loft space?). On that note, what is the flow from your cold kitchen tap like?

When it refills it's definitely more of a trickle and takes around an hour to fully fill. It is coming from the mains. Cold kitchen tap flow is fine and continuous.

Ok, that sounds like an easy solution could be more likely.

There's a red gate valve shown in your first photos - can you confirm that this feeds in to near the top of the upper tank? Does the valve rotate smoothly? Is it fully open - anti-clockwise?

The red valve is a gate valve to turn of the supply to the taps. It won’t be at the top.
The ball valve will have be serviced/ replaced, there’s always limited space above, have to do it by feeling with your hands, as long as there’s 100mm above the lid no. Problem. 

playlister82

ThisIsWeird said:

Ok, that sounds like an easy solution could be more likely.

There's a red gate valve shown in your first photos - can you confirm that this feeds in to near the top of the upper tank? Does the valve rotate smoothly? Is it fully open - anti-clockwise?

It doesn't rotate at all, it feels like it's stuck.

plumb1_2

playlister82 said:

ThisIsWeird said:

Ok, that sounds like an easy solution could be more likely.

There's a red gate valve shown in your first photos - can you confirm that this feeds in to near the top of the upper tank? Does the valve rotate smoothly? Is it fully open - anti-clockwise?

It doesn't rotate at all, it feels like it's stuck.

Then leave it alone.

ThisIsWeird

plumb1_2 said:

ThisIsWeird said:

playlister82 said:

ThisIsWeird said:

Clearly it was installed by a genius!

When you run off a decent amount of hot water, can you hear it refilling ok? What does it sound like - a trickle or a good flow?

The LL is clearly wrong in any case; just look at the size of the hot cylinder part - you should be able to have that much of hot water, constantly replenished by the small CWS on top, which in turn should be filled at a rate to easily keep up with this (almost certainly it'll be supplied direct from the mains - unless there's another CWS on the roof/loft space?). On that note, what is the flow from your cold kitchen tap like?

When it refills it's definitely more of a trickle and takes around an hour to fully fill. It is coming from the mains. Cold kitchen tap flow is fine and continuous.

Ok, that sounds like an easy solution could be more likely.

There's a red gate valve shown in your first photos - can you confirm that this feeds in to near the top of the upper tank? Does the valve rotate smoothly? Is it fully open - anti-clockwise?

The red valve is a gate valve to turn of the supply to the taps. It won’t be at the top.
The ball valve will have be serviced/ replaced, there’s always limited space above, have to do it by feeling with your hands, as long as there’s 100mm above the lid no. Problem. 

I meant, does the pipe from that red valve go to near the very top? If it does, then couldn't it be the CWS supply?

PL, if it won't turn, it'll most likely be stuck in the fully open position, so that won't be the issue.

And if it isn't the CWS feed, then I'm off the line anyway...

RedFraggle

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