Unvented cylinder recommendations?

[DesDixon]

Have 2m height and require a 500L unvented cylinder. Most will be just under this height so probably best if I go for a horizontal so it's not too tight.

Question is, is there an unvented cylinder with solar (future proof if I install solar), indirect (heated by gas boiler), horizontal and 500L?

 

[SmokeyJ]

Only 500L one I can see on a quick search on google
Cyclone Horizontal Un-Vented Cylinders - Joule

 

[DesDixon]

Wow that's a lot more expensive than other horizontals (non solar)!

Are Joule any good though?

 

[ShaunCorbs]

Wow that's a lot more expensive than other horizontals (non solar)!

Are Joule any good though?

what were you looking at before?

and yes very good

 

[townfanjon]

500 litre , is this going in a house or a sports center ?

 

[DesDixon]

I was looking at a Telford Tempest originally.

7 bed house (up to 20 rads inc towel rails), 4 gas showers, 1 bath.

 

[ShaunCorbs]

how many bathroom?

 

[Jay The Plumber]

OSO are great.. I have one with 2 coils, one for solar but I have piped them in series to give faster recovery..

 

[Ray Stafford]

Have 2m height and require a 500L unvented cylinder. Most will be just under this height so probably best if I go for a horizontal so it's not too tight.

Why horizontal? Horizontal cylinders are fundamentally less efficient, and are necessarily more expensive, as it requires more metal to contain the same amount of water.

You can get a 500 litre RM calorifier at 1830mm. I'm sure they will put a second coil in it for you, (which is an excellent idea incidentally) which may reduce the capacity to 490lts. Thats plenty of clearance, a much more efficient unit, a lower price - whats not to like?

 

[Ch4 plumbing]

Why not fit 2 smaller unvented cylinders if your worried about the height?

I would also check the joists as 500 ltr of water is very heavy!!

 

[DesDixon]

Well, I've re-measured and have 2000mm height and typical 500L cylinders are circa 1835. How much clearance would I need above?

I suppose two 250s is an idea.

 

[ShaunCorbs]

Well, I've re-measured and have 2000mm height and typical 500L cylinders are circa 1835. How much clearance would I need above?

I suppose two 250s is an idea.

where are you thinking about putting them? as a stnd loft isnt suitable without major work

 

[chris watkins]

I think 500L storage is overkill, unless all showers & bath are going to be used at the same time & then again straight after i.e. 7 bed rooms are in full occupancy all the time & everyone is hitting the showers in the morning. (unless you had to install a horizontal).
All the modern cylinders will recover in around 30mins it makes much more sense to recover the hot water rather store it.

 

[PhoenixServices]

I would go back to the drawing board. Shouldn't need that much storage, get I high recovery cylinder on a priority hot water system.

 

[DesDixon]

Fair points which I am considering. I think I can get a 400L in there comfortably but what cylinders have 'high recovery'?

 

[kay-jay]

Fair points which I am considering. I think I can get a 400L in there comfortably but what cylinders have 'high recovery'?

Any of em if you use the solar coil as a primary circuit as well [emoji6]