Unvented cylinders and solar panels

[cider]

OP the gain you will get varies from day to day but apart from the crappiest days you will get something
if the system is sized and installed correctly you can get cheaper hot water most of the year.
free - never
as you say the time you need the most water is in the morning this isn't a problem as you use the water heated the day before - topped up by the boiler
i have seen several installs like you describe and every landlord/hotelier i have met is happy with their system
use the solar to preheat and the boiler to top up in the morning
my own panel fitted on my old house was south facing (30 tube Apricus collector) it produced hot water without a boiler top up from may to oct (boiler wasn't even switched on) the cylinder was a 220 litre solar unvented cylinder fitted in the loft.
during the winter a 10 to 15 min top up in the morning produced enough hot water for daily use including an 8" rain water shower fitted in the bathroom

Holidays in Southampton for me this year then

 

[oilman]

did the OP state anywhere he had an E/W roof?

You do seem to have trouble with what are fairly simple concepts.

The roof would have to be a N/S roof to have an east facing pitch.

You wrote

Why would he need some East facing collectors? is your thinking that they would contribute more to the system for early morning showers? if so, its wrong.

Let's take this one step at a time so you don't get left behind.

You mention "early morning". ok? with me so far?

The sun rises (this is early morning remember) in the EAST (actually in mid summer it's near north-east).

Your question was "is your thinking that they would contribute more to the system for early morning showers?"

Since a south facing panel would have zero incident sunlight on it if the sun was in the east, it must be obvious to even the most dim-witted haddock that an east facing panel would contribute MORE.

Comprendez?

 

[ajstoneservices]

Oilman
You may know about oil boilers but you know jack **** about solar the fact that you've fitted a Willis makes that more than clear, perhaps your another one install know all.

I have spaces available in our training center which clearly you need to visit pm me for available dates.


Op you may find the attached useful

 

[oilman]

Oh, you run a brain wash..., er sorry, training centre do you? Now why would I want to be trained in how to fit kit which has an almost infinite payback time?

Do you do fast track plumbing courses?

 

[ajstoneservices]

Oh, you run a brain wash..., er sorry, training centre do you? Now why would I want to be trained in how to fit kit which has an almost infinite payback time?

Is that the best you can up with you that claims to have a Willis system your a joke

 

[ajstoneservices]

Do you do fast track plumbing courses?

I bet you need one of those too

 

[BigBurner]

Oilman
You may know about oil boilers but you know jack s**t about solar the fact that you've fitted a Willis makes that more than clear, perhaps your another one install know all.

I have spaces available in our training center which clearly you need to visit pm me for available dates.

Op you may find the attached useful

Untitled

• ajstoneservices
• 2 Mar 2009
• 1

Two unvented cylinders? One heat bank/thermal store could do the lot.

 

[ajstoneservices]

Oilman
You may know about oil boilers but you know jack s**t about solar the fact that you've fitted a Willis makes that more than clear, perhaps your another one install know all.

I have spaces available in our training center which clearly you need to visit pm me for available dates.

Op you may find the attached useful

Untitled

• ajstoneservices
• 2 Mar 2009
• 1

Two unvented cylinders? One heat bank/thermal store could do the lot.

BB
You surprise me

 

[kevindgas]

Oilman
You may know about oil boilers but you know jack s**t about solar the fact that you've fitted a Willis makes that more than clear, perhaps your another one install know all.

I have spaces available in our training center which clearly you need to visit pm me for available dates.

Op you may find the attached useful

Untitled

• ajstoneservices
• 2 Mar 2009
• 1

Two unvented cylinders? One heat bank/thermal store could do the lot.

yes 1 may do but thermal stores lose heat very quickly and in my experience people are dissatified with them whereas unvented i have never had a complaint
as previously quoted use the correct controller and it should be trouble free RESOL have a controller for most applications
as for East /west collectors these don't produce as much as a south facing collector it also depends on where the OP actually lives as to the amount of solar gain he will recieve

 

[ajstoneservices]

yes 1 may do but thermal stores lose heat very quickly and in my experience people are dissatified with them whereas unvented i have never had a complaint
as previously quoted use the correct controller and it should be trouble free RESOL have a controller for most applications
as for East /west collectors these don't produce as much as a south facing collector it also depends on where the OP actually lives as to the amount of solar gain he will recieve

I agree the standing heatloss from an unvented cant be bettered unless of course BB knows better

 

[gas4you]

Why fit one rust bucket, when 2 un-vented will last a lot longer

 

[ajstoneservices]

Why fit one rust bucket, when 2 un-vented will last a lot longer

er, coz they don't go Kaaabbbooooommm you should know that by now

 

[WDIK]

yes 1 may do but thermal stores lose heat very quickly and in my experience people are dissatified with them whereas unvented i have never had a complaint

Im intreuged
why would the laws of thermal dynamic alter between different appliances? if considering they had the same level of insulation?
the latent heat loss is measurable and as the medium is water, both are the same.
its termed the latent heat loss of water, its a physics standard.

er, coz they don't go Kaaabbbooooommm you should know that by now

sorry thats never happened in this country.

amazingly I wrote a piece about it

//www.diynot.com/forums/viewtopic.php?p=851722#851722

 

[ajstoneservices]

yes 1 may do but thermal stores lose heat very quickly and in my experience people are dissatified with them whereas unvented i have never had a complaint

Im intreuged
why would the laws of thermal dynamic alter between different appliances? if considering they had the same level of insulation?
the latent heat loss is measurable and as the medium is water, both are the same.
its termed the latent heat loss of water, its a physics standard.

er, coz they don't go Kaaabbbooooommm you should know that by now

sorry thats never happened in this country.

amazingly I wrote a piece about it

Come on WDIK keep up you don't write about it as frequently as BB do you

 

[kevindgas]

er, coz they don't go Kaaabbbooooommm you should know that by now

and how many have you actually seen do this? oh yes every week on a training video!