Mefaflo/Megaflow systems?

[eldar]

Got the system fitted, on time, on budget.

Works perfectly, all the combi problems eliminated

Good advice here.

[Epiphany]

Sorry to Hijack this thread!

I'm about to begin building a 3 bedroom house with 1 en-suite shower, 1 bathroom (with whirlpool bath and over shower) and utility room with dishwasher and washing machine, and a wet underfloor heating system on both floors and I'm having trouble deciding on which hot water system to use.

After quite a bit of reading, everyone and their dog seems to be recommending a Megaflow system (usually Unvented), and it's what we were leaning towards, but our builder is recommending we fit a combi boiler and an electric shower to prevent temperature problems, as he says that it will be adequate for our set-up, and that the extra cost for a mega-flow system wouldn't be worth it for the benefits provided.

I know that the flow rate and pressure will be important, but as we haven't yet started development, we don't yet know what it is.

Can anyone offer any advice about which system would be more appropriate?

[tobeee]

If you've ever stayed in a rubbish B&B, you'll have a flavour of what's wrong with electric showers. We replaced our old boiler with a megaflo system, and have been very pleased with it. Also, I was able to build a shower cubicle where the old cylinder used to live, which was a bonus! Get more quotes for a megaflo!

[eldar]

The extra cost of a megaflow in a new installation is small, a couple of hundred. No brainer.

[furtive]

I'm in the middle of buying a house with a megaflow installed. Can someone please enlighten me as to what they are and how they differ from a regular boiler and hot water tank arrangement?

[eldar]

furtive said:

I'm in the middle of buying a house with a megaflow installed. Can someone please enlighten me as to what they are and how they differ from a regular boiler and hot water tank arrangement?

Pretty much the same in principle. Boiler heats hot water in a tank. Difference is that the tank is at mains pressure, and the water is heated by a condensing boiler (or an ordinary one.)

[furtive]

Ah ok, thanks. Assume that being at mains pressure means better pressure in the shower? Especially if two are being run at once?

[GarryA]

Showers are great with megaflow, I've run 3 of ours at the same time and still ok, you do use the hot water up quick though

[Ferg]

Not really mains pressure, to be accurate. Dependent on which cylinder you use it can vary from 1.8Bar to 3.5Bar to my knowledge.
Bear in mind 'Megaflo' is a trade name, what we are talking about is an unvented cylinder. There are lots about. Megaflo is neither best nor worst.

[Ricky_M]

Which do you prefer Ferg? We've been fitting Gledhill Lites lately, they are actually cheaper than Plumb Centres own brand.

Had any experience with Ariston? I decommisioned four in less that two weeks! Two had split the coil and the other two were leaking through the body!

[Ferg]

I like the Main.