Megaflo - Unvented Direct or Indirect - which is best ?

[scottrichings1]

1. Am confused as to what the differences - and benefits - are of each system. Pls advise.
2. Is Megaflo brand the best ? - money is not an issue but VFM is.
3. I was advised to avoid 'Italian' made products - why ?
4.. I require either 170 or 210 ltr - is for 2 adults/2 children (at present!) and there is one bath/shower and one seperate shower in property. Is 170ltr sufficient ?
5.. What make of Boiler is recommended ? Vaillant,Baxi, WorcesterBosch ?
6. How many kwt's or btu's are required to run this whole system inc the Megaflo ? The property will also have 11 rads + wet underfloor heating in 15sqm kitchen
Many thanks.
Scott.

 

[stiler]

This should help you figure out the size of Boiler you require...
http://www.energysavingtrust.org.uk...elpful-Tools/Whole-house-boiler-sizing-wizard

As for make, if cost is really is not an issue the ATAG would most likely be the top choice and the higher end (200 & above) Viessmann.
Best Cylinder choice I would say would be the OSO Super S. A indirect hot water storage tank is heated via your CH system (+ immersion if required) but a direct is heated only via immersion heaters. You will find it explained in a little more detail here...
http://www.diydoctor.org.uk/projects/domestic_hot_water_systems.htm

Not trying to get a sale here but if you decide on the Heatrae Sadia Megaflow I have a fully factory plumbed 210ltr SystemFit that I have no use for that I will do you a great deal on. This would work great with the ATAG as they support dual pumps, not sure about the Viessmann.
Details if you are interested are here
http://www.ukplumbersforums.co.uk/s...e-sadia-megaflo-systemfit-cylinder-cl210.html