[/quote]I still do not understand one point
there is mention that a house of this size should not have a combi - this is fair enough and never suggested
A combi storage ,which from what i understand is basically a normal boiler with a cylinder but built in so better than an ordinary combi
there has been mention of the atag, the german make above but not much mention of the potterton or alpha really - is this because they are no good or just not used much because there are better options
is it the case having a bigger storage i.e. the potterton is better than the bosch or alpha which is only 50 - or is the recharge time more inportant?
i get the impression the storage combination boilers do not get fitted much and amybe there is not a push towards them. my simple mind cannot see why they would not be a good choice in my situation
Credit where it's due, it was Simond who was 1st to spot this time.
Oh dear, no prize for me then
Sounds like CC is worth joining for the gossip.
That is just rumour, but don't tell anyone....Sounds like CC is worth joining for the gossip.
Size of house is pretty much irrelevant. Combi boilers are perfectly suited to large houses and in fact tend to be thoroughly over-sized for small houses and flats, but they are best suited to situations where hot water requirements are limited to a single use at a time.
Anyone who has a routine need for two more-than-so-so showers going at once won't want a combi.
Yes, storage combis include a small tank of hot water that is used to supplement the flow rate of hot water for a period of time. The small size means it is suitable for about the length of a generous shower.
and still have many of the limits of other combis.
One thing you should probably ponder is that "plumbers" hate combis and most people that have them think they're great. Go figure!
These comments are aimed at Gayton, big Burner etc
You mention that a combi passing through a fan coil is the most efficient. Clearly not more efficient than a modern Lennox warm air unit, so why mislead?
The reason God put water in radiators is that it is blessed with a high specific heat capacity. So the rads stay warm for long periods.
Air is not, which is why warm air systems warm up very quickly, but also lose heat similarly fast. Running a combi into a 20kw fan coil for a warm air system will work.
But if someone runs a long shower the house will go cold - the fan coil heat capacity would be exhausted less than a minute after the shower was run.
So, if you are three/four people living in a house heated using Gayton's proposed system, you'll go cold every morning.
It is poorly conceived contrivance, by a Billy Liar individual who posts with multiple aliases, and has even concocted a fictitious case study to support his need for credibility.
Oh dear, no prize for me then
Sounds like CC is worth joining for the gossip.
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local