2 x 20 x 47mm Tube Navitron Panels on a Grade II Listed Building

[Pip]

More photos to come here

[knighty]

looking good... nice neat and tidy job there !

can't wait for the next photos... you've set the bar high now.....

[desperate]

Nice one pip,

 that insulation should be proud it,s yours, nice looking place you have there too, one point if you dont mind, that fixing strap on the batten dosen,t look all that strong, why not fix it to a lump of timber screwed below the rafters or a noggin between them?

Desperate

[chickensoup]

 Well done Pip, thats a nice neat job, I really do like that guttering armour.....cool! but quick remove the images as if Brandon see's the tile drilling he'll have a coronary!!

  have an applaud!

              chicko

[Pip]

Nice one pip,

 that insulation should be proud it,s yours, nice looking place you have there too, one point if you dont mind, that fixing strap on the batten dosen,t look all that strong, why not fix it to a lump of timber screwed below the rafters or a noggin between them?

Desperate

Point taken. The battens were 1 inch by 1 ¾ inch, the strap wraps round it and screwed on.  It may not look strong in the photo, but with the concrete tiles on top it very sturdy. Most of the weight will be hanging from on the top straps, the bottom ones just keep the panels anchored down.  I could not put a noggin in without breaking through the felt, and cutting away the room insulation.  I had to go with what the roof would let me do,.  I gave it a good tug before fitting back the tiles, even then I was happy that was stong enough.

[Ivan]

Very nice installation. I like the neat plastic pipe covers.

[wookey]

yes, scary-neat. Full marks for attention to detail, and a quality pictorial.

Just a few corrections: silicon->silicone, Few!->Phew!, batons->battens

[Drawmer]

Oh dear, it all looks so neat.
Very good job, I do like the rwp covers for the armaflex.

Well done Pip.

[Pip]

yes, scary-neat. Full marks for attention to detail, and a quality pictorial.

Just a few corrections: silicon->silicone, Few!->Phew!, batons->battens

Thanks for the proof reading Wookey.  Corrections duly made. 

Cheers
Pip

[desperate]

Hi pip

I am sure you are right about the solidity of your fixing, for what it is worth though the fixing kit was the one part of the system that I thought was below standard and I certainly wont be fixing the frame like that again, In future I am going to cut 4 holes in the roof covering and fix some 12mm studding through a piece of 4*2 fixed to the rafter. If the frame is strong enough I may lift the whole assembly just above the roof and suspend it on the studs.  My reason for doing this is the possibility of the panel lifting up at right angles  to the pitch line, if you think about it there is nothing but the weight of the panel resisting this movement, the straps will do nothing to prevent this, and a small amount of banging around in the wind is going to do a lot of damage.
I am probably being paranoid about the risk, but I always like to go over the top with these sort of details, especially as most of the bits can be made up beforehand and the extra work is minimal.

All the best

Desperate

[StBarnabas]

Pip
great job loved the photos. Great to see another "historic" building with 2x20 standard panels. Need to compare notes with my 50 degree Northumberland system...
StB

[markgraham]

Hello Pip

Congratulations on your instalation.
I see you are maticulous with your lagging. Could you show us how you lagged around the 3 port valve and pump? I am interested if you get any heat leaking from these components.

I am also thinking about a similar heat dump to yours:
Has the heat dump kicked-in much?
And when it does, does the radiator keep the collector temperature from rising?
How big is the rad?
How hot is the water at the valve?

I am tending towards putting my radiator in your original position; after the cylinder coil. I think it will work... were you totally convinced otherwise?
Any chance of you posting your word document... I'd love to use it as a base for my documentation.

All the best
Mark

[Pip]

Hello Pip

Congratulations on your instalation.
I see you are maticulous with your lagging. Could you show us how you lagged around the 3 port valve and pump? I am interested if you get any heat leaking from these components.

I am also thinking about a similar heat dump to yours:
Has the heat dump kicked-in much?
And when it does, does the radiator keep the collector temperature from rising?
How big is the rad?
How hot is the water at the valve?

I am tending towards putting my radiator in your original position; after the cylinder coil. I think it will work... were you totally convinced otherwise?
Any chance of you posting your word document... I'd love to use it as a base for my documentation.

All the best
Mark

Hi Mark
I am sorry it has taken me so long to respond.  For some reason the site didn't alert me to your posting.

I have not lagged around my diverter valve or pump.  I was unhappy with encasing these mains powered electrical devices in insulation.  Others in here may have different views on this and I myself would be interested in hearing them.

One thing I would consider over my design is rather than using a diverter valve, I would consider using a 2nd pump to drive flow through the boiler coil into the heat dump radiator.  A pump is significantly cheaper than a diverter valve.  Additionally the volume of the water in the solar loop will also drop considerably and thus removing the volume of antifreeze you would need add, again a significant cost saving.  Also the TDC3 works better in with this kind of configuration anyway.  I would do this if I were to start again.

Best regards
Pip