Indirect Thermal Store pre heating to Combi?

[bernardgreen]

That is just one of many safety devices fitted to unvented cylinders

For the un-initiated. What are the ( many ? ) other ones ?

 

[Dan Robinson]

For the un-initiated

Exactly. So stop giving advice on things you know little about.

 

[bernardgreen]

Exactly. So stop giving advice on things you know little about.

I was asking so that others may learn ( from a registered and qualified person ) about the need to ensure their unvented cylinder is given a regular service to ensure they are safe living with their cylinder.

While I may not be fully upto date with domestic heating systems back in the 1970's I worked with systems using pressurised hot water to heat extrusion nozzles for manufacture of plastic pipes. Six bar, water temperatures over 200°C three phase electric immersion heaters.

 

[Dan Robinson]

I shall get your blue Peter badge off as soon as possible. If I want advice on extrusion nozzles I might consider adding you. However, I suspect your position might have been head teaboy.

Have you serviced your open vented system recently?

 

[bernardgreen]

Have you serviced your open vented system recently?

I haven't, but then there are no safety critical checks needed other than a check on the ratio of carbon dioxide to carbon monoxide in the flue gases. Nothing is pressurised. The only risk is that the boiler may over heat the water if two devices fail at the same time. ( control sensor and safety shut down sensor )

I suspect your position might have been head teaboy.

You suspect wrong, but then your suspicions are often biased.

 

[Agile]

I was asking so that others may learn ( from a registered and qualified person ) about the need to ensure their unvented cylinder is given a regular service to ensure they are safe living with their cylinder.

Don't you think that others would be quite content to leave servicing to the qualified person?

When flying on a Boeing 787 Dreamliner do you want to have a personal copy of the preflight checks?

Most people ( well everyone really ) just sit back and try to enjoy the flight as best they can with 78 dBA over the wings.

Tony

 

[bernardgreen]

Don't you think that others would be quite content to leave servicing to the qualified person?

Yes...but quite a few people do not realise the need to have their hot water cylinder serviced on a regular ( yearly ) basis by a specialist. They often do not realise the implications of having an unvented cylinder in their house compared to their previous vented hot water cylinder.

When flying on a Boeing 787 Dreamliner do you want to have a personal copy of the preflight checks?

No, but I am a bit choosy about which airline to fly with.

 

[Dan Robinson]

So you haven't read the link I posted then. You haven't cleansed the cistern, you haven't checked your immersion heater stats?


Tut Tut.

 

[Agile]

Yes...but quite a few people do not realise the need to have their hot water cylinder serviced on a regular ( yearly ) basis by a specialist. They often do not realise the implications of having an unvented cylinder in their house compared to their previous vented hot water cylinder.

No, but I am a bit choosy about which airline to fly with.

Just to help the householder, I think that the Megaflo cylinders actually say on the side that they need annual servicing!

The 787 I went on recently was only seven weeks old and operated by Virgin. They were so fussy about checking the passengers during the flight that it reminded me of British Airways! They even wanted the seat belts over the outside of the blankets! They also came round with sweets just before landing.

Tony

 

[bernardgreen]

only seven weeks old

so maybe a few teething troubles still to be discovered ?

If I recall correctly Virgin were the only airline to frequently remind passengers to keep seat belts fastened while seated. ( avoids injuries if the plane flies into clear air turbulance ).

Sweets prior to landing can be a cover up for poor cabin air pressure control, sucking them helps the ears to adjust to pressure changes ( my cousin was a BOAC air hostess )

 

[Agile]

All the airlines remind passengers to keep belts fastened now. Following several injuries a couple of years ago when a large plane hit unexpected turbulence.

On my return flight the captain said the departure was delayed by 20 min but the time would not be wasted as Boeing engineers were doing some checks!

 

[Elliotpea]

I finally got around to getting up in the loft and having a measure, and i've put this in the attached diagram. I think i'll be looking at something like 2 x 150ltr cylinders, this way they can sit off to the side and allow access to the boiler on the gable. The tanks/boiler will be sitting over a walk in wardrobe, so if it does burst there will be less chance of getting someone, but i will of course take the safety advice on board, as it sounds quite horrific.